3 月 20 日 Exercises , V1.0.43
NAME:______
【PART 01】
1(CAMIG-phys-0620-2018-oct-nov-11-8). A car moves along a level road.
The diagram shows all of the horizontal forces acting on the car.
Which statement is correct?
A The car is slowing down.
B The car is speeding up.
C The car is moving at a constant speed.
D The car is moving backwards.
2(CAMIG-phys-0620-2018-oct-nov-11-10). Which device is designed to convert chemical energy
into kinetic energy?
A an a.c. generator
B a battery-powered torch
C a car engine
D a wind-up mechanical clock
3(CAMIG-phys-0620-2018-oct-nov-11-11). A man climbs a ladder.
Which two quantities can be used to calculate the useful power of the man?
A the weight of the man and the time taken only
B the weight of the man and the vertical distance moved only
C the work done by the man and the time taken only
D the work done by the man and the vertical distance moved only
4(CAMIG-phys-0620-2018-May-june-11-4). Diagram 1 shows a beam balance. A beaker with a
wire loop balances the standard masses.
The beaker is then removed and hung from a spring. The spring extends by 5.0 cm, as in diagram 2.
The experiment is repeated with the same apparatus on the Moon, where the acceleration of free fall
is less than on Earth.
Which statement describes what happens on the Moon?
A The beam balance is balanced and the spring extends by 5.0 cm.
B The beam balance is balanced and the spring extends by less than 5.0 cm.
1 / 21
C The right-hand balance pan is higher and the spring extends by 5.0 cm.
D The right-hand balance pan is higher and the spring extends by less than 5.0 cm.
5(CAMIG-phys-0620-2018-May-june-11-5). An empty beaker is placed on a top-pan balance.
Some water is now poured into the beaker.
What is the weight of the water?
A 0.044 kg
B 0.168 kg
C 0.0044 N
D 0.44 N
6(CAMIG-phys-0620-2018-May-june-11-6). Three liquids P, Q and R have different densities and
do not mix. The liquids are placed in a measuring cylinder and allowed to settle. A small block is
then dropped into the measuring cylinder and comes to rest, as shown.
Which statement about the density of the block is correct?
A It is equal to the density of Q.
B It is greater than the density of P.
C It is greater than the density of R.
D It is less than the density of Q.
7(CAMIG-phys-0620-2018-May-june-11-7). The diagram shows some liquid in a measuring
cylinder.
The mass of the liquid is 16 g.
What is the density of the liquid?
A 0.80 g / cm 3
B 1.25 g / cm 3
C 36 g / cm 3
D 320 g / cm 3
8(CAMIG-phys-0620-2018-May-june-11-8). A car is moving in a straight line on a level road. Its
engine provides a forward force on the car. A second force of equal size acts on the car due to
resistive forces.
2 / 21
Which statement describes what happens?
A The car changes direction.
B The car moves at a constant speed.
C The car slows down.
D The car speeds up.
9(CAMIG-phys-0620-2018-May-june-11-9). A hole is drilled in a square tile. The diagram shows
the tile hanging freely on a nail.
Where is the centre of mass of the tile?
批注 [1]: D
10(CAMIG-phys-0620-2018-May-june-11-10). The diagram shows the energy transferred in a lamp
in one second.
Which type of wasted energy is produced by the lamp?
A chemical potential energy
B electrical energy
C gravitational potential energy
D thermal energy
11(CAMIG-phys-0620-2018-May-june-11-11). Which energy resource is not renewable?
A fossil fuel
B sunlight
C tides
D wind
12(CAMIG-phys-0620-2018-May-june-11-12). A student does work by pulling a box across a
horizontal floor.
She now pulls a second box along the same floor.
Which row indicates that the student is now doing twice as much work?
批注 [2]: C
13(CAMIG-phys-0620-2018-May-june-11-13). Four identical beakers are filled with equal volumes
of liquids P or Q, as shown. Liquid P is more dense than liquid Q.
At which point is the pressure the least?
批注 [3]: D
3 / 21
14(CAMIG-phys-0620-2018-May-june-11-14). A woman has a weight of 600 N. She stands on a
horizontal floor. The area of her feet in contact with the floor is 0.050 m2.
What is the pressure she exerts on the floor?
A 1.2 × 103 N / m2
B 2.4 × 103 N / m2
4
2
C 1.2 × 10 N / m
D 2.4 × 104 N / m2
【PART 02】
1(CAMIG-phys-0620-2016-May-june-31-4). Fig. 4.1 is a simplified diagram of a geothermal power
station.
Fig. 4.1
(a) Describe the energy resource labelled X in Fig. 4.1.
...............................................................................................................................................[1]
(b) Identify the useful energy transformation that takes place in the geothermal power station.
Tick one box in each column.
批注 [4]: hot rocks
批注 [5]: input: thermal
output: electrical
批注 [6]: any two from:
[2]
(c) State two disadvantages of obtaining energy from fossil fuels.
air pollution OR atmospheric pollution
climate change OR global warming OR greenhouse gases
use up diminishing resources OR non-renewable
4 / 21
1. ..............................................................................................................................................
...................................................................................................................................................
2. ..............................................................................................................................................
...................................................................................................................................................[2]
[Total: 5]
2(CAMIG-phys-0620-2016-May-june-32-3). Fig. 3.1 shows a girl and a boy on a see-saw.
Fig. 3.1
The see-saw pivots on the log.
(a) Calculate the girl’s moment about the pivot.
批注 [7]: force × distance (from pivot) OR 300 × 2.4
720 (N m)
girl’s moment = ................................................... N m [2]
(b) The see-saw is balanced horizontally.
Calculate the weight W of the boy.
批注 [8]: sum of clockwise moment = sum of anticlockwise
moment
720 = W × 1.6 OR 720 ÷ 1.6
450 (N)
weight of boy = ....................................................... N [3]
[Total: 5]
3 月 15 日 Exercises , V1.0.42
NAME:______
【PART 01】
1(CAMIG-phys-0620-2017-May-june-31-40. Fig. 4.1 shows a hydroelectric power system located
in the mountains.
Fig. 4.1
(a) The reservoirs store energy.
State the terms used to describe the energy stored in the reservoirs.
.............................................................................................................................................. [1]
5 / 21
批注 [9]: (gravitational) potential (energy)/(G)PE
(b) Describe how the energy stored in reservoir C becomes useful energy for the city at the
hydroelectric station.
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
.............................................................................................................................................. [3]
(c) Some of the stored energy is wasted. Explain what happens to this energy.
...................................................................................................................................................
.............................................................................................................................................. [2]
(d) Water from reservoirs A and B may flow into reservoir C. It is more efficient to fill reservoir C
using water from reservoir B only.
Suggest a reason for this.
...................................................................................................................................................
.............................................................................................................................................. [1]
[Total: 7]
2(CAMIG-phys-0620-2017-May-june-32-3). Fig. 3.1 shows a large sunshade.
Fig. 3.1
The arm holding the sunshade pivots about the end of a support.
(a) The sunshade has a mass of 20.0 kg.
Calculate the weight of the sunshade.
批注 [10]: any 3 from:
water flows down OR water flows at constant speed
water drives turbine OR turbine rotates owtte
turbine turns generator (at constant speed)
electricity generated/produced owtte
批注 [11]: transferred to thermal OR sound
dissipated to the surroundings owtte
批注 [12]: shorter (travelling) distance/water in B higher than
A/water from A has to be pumped (up to C) owtte
批注 [13]: weight = mass × gravitational field strength in any
form
20.0 × 10.0
weight = ..................................................... N [3]
(b) (i) Another sunshade is shown in Fig. 3.2.
This sunshade weighs 180 N.
The arm holding the sunshade extends 2.5 m from the pivot.
Fig. 3.2
6 / 21
200 (N)
Calculate the moment of the sunshade about the pivot.
批注 [14]: moment = force × (perpendicular) distance (from
pivot) in any form
180.0 × 2.5
450 (N m)
moment = .................................................. N m [3]
(ii) How can the moment produced by the sunshade be reduced? Tick one box.
批注 [15]: 2nd box down ticked decrease the length of the
arm holding the sun-shade
[1]
[Total: 7]
3(CAMIG-phys-0620-2017-May-june-33-20). A student has a laptop computer. The computer is
powered by a battery.
(a) State the word used to describe the energy stored in the battery.
...............................................................................................................................................[1]
(b) The student opens the laptop using a force of 3.0 N, as shown in Fig. 2.1.
Fig. 2.1
(i) Calculate the moment of the 3.0 N force about the pivot.
批注 [16]: chemical
批注 [17]: Moment = force × (perpendicular) distance (from
pivot) in any form
3.0 × 25.0
75 (N cm)
moment = ................................................. N cm [3]
(ii) The student does work as he opens the laptop.
Explain how the principle of conservation of energy applies to this example.
...........................................................................................................................................
.......................................................................................................................................[2]
(c) The student is in a country with many hours of sunshine each day. He charges his laptop
using a solar panel.
Give two advantages of using a solar panel, compared with using a mains electrical supply.
1. ...............................................................................................................................................
2. ...............................................................................................................................................[2]
(d) A mains battery charger has a power output of 80 W.
The solar panel has a power output of 16 W.
Describe one disadvantage of using the solar panel, compared with using the mains battery charger.
批注 [18]: any two from:
idea that work done = energy gained
total energy does not change
the student loses chemical energy
laptop gains (gravitational) PE (of lid)
energy dissipated as thermal energy in the environment
批注 [19]: any two from:
laptop can be charged anywhere owtte
cost of charging is zero
(Sun is a) renewable energy (source)/not using fossil fuels
批注 [20]: (Takes 5 times) longer to (re-)charge (battery)
7 / 21
...............................................................................................................................................[1]
[Total: 9]
3 月 14 日 Exercises , V1.0.41
NAME:______
【PART 01】
1(CAMIG-phys-0620-2018-Feb-march-32-4). Fig. 4.1 represents a hydroelectric system for
generating electrical energy.
Fig. 4.1
(a) Describe how the power station uses the water in the reservoir to generate electrical energy.
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
.............................................................................................................................................. [3]
(b) State three advantages of generating electrical energy using a hydroelectric system compared
with using a coal-fired power station.
1. ...............................................................................................................................................
...................................................................................................................................................
2. ...............................................................................................................................................
...................................................................................................................................................
3. ...............................................................................................................................................
...................................................................................................................................................[3]
(c) An electric drill is shown in Fig. 4.2. It uses electrical energy.
Fig. 4.2
Complete the sentences about the electric drill.
8 / 21
批注 [21]: any three from:
water flows down (from reservoir)
idea of gravitational / potential energy (transferred to kinetic
(energy))
water turns turbine
turbine turns generator
批注 [22]: Any three from:
• does not contribute to atmospheric pollution / acid rain
• does not contribute to greenhouse gases / global warming
• renewable energy source (so will not run out)
• short start-up time / can meet surges in demand owtte
• conserve non-renewable reserves / fossil fuels
• reduces dependence on fossil fuels (from other countries)
Use words from the box. Each word may be used once, more than once, or not at all.
(i) The electric drill usefully transforms electrical energy into .......................... energy. [1]
(ii) A second electric drill transforms the same amount of electrical energy per second as the first
one. It wastes more of this energy.
The second drill is less ......................................... than the first drill. [1]
[Total: 8]
2(CAMIG-phys-0620-2017-oct-nov-31-4). Fig. 4.1 shows two methods for generating electricity
using renewable sources.
Fig. 4.1
(a) Name the energy source for each method.
In Fig. 4.1a, the energy source is .............................................................................................
In Fig. 4.1b, the energy source is .............................................................................................[2]
(b) (i) State two advantages of using renewable sources for generating electricity compared to using
a coal-fired power station.
1. .......................................................................................................................................
...........................................................................................................................................
2. .......................................................................................................................................
...................................................................................................................................... [2]
(ii) State one disadvantage of using renewable sources for generating electricity compared
to using a coal-fired power station.
...........................................................................................................................................
...................................................................................................................................... [1]
[Total: 5]
3(CAMIG-phys-0620-2017-oct-nov-33-4). A catapult consists of a rubber band attached to a handle.
A student uses the catapult to fire a ball towards a target. Fig. 4.1 shows the catapult just before the
student releases the rubber band.
Fig. 4.1
9 / 21
批注 [23]: Kinetic
efficient
批注 [24]: 1 solar / Sun
2 wind
any two from:
(renewable sources) are replaceable in a short time
no (atmospheric) pollution
conserves fossil fuels
do not contribute to global warming
no fuel costs
any one from:
dilute source of energy owtte
dependent on weather / intermittent supply
(a) When the student releases the rubber band, the ball moves towards the target.
Complete the following sentences about energy transfers during this process. Use words from the
box. You may use each word once, more than once or not at all.
(i) As the rubber band is pulled back, the work done is transferred into ........................... potential
energy. [1]
(ii) When the student releases the rubber band, the ball moves forward horizontally.
Stored ........................... potential energy is transferred into ........................... energy. [2]
(iii) As the ball travels through the air there is friction with air molecules. This causes some of the
ball’s ........................... energy to be transferred into ........................... energy. [2]
批注 [25]: elastic
elastic
kinetic
kinetic
thermal
(b) The ball does not reach the target, as shown in Fig. 4.2.
Fig. 4.2
Describe how the student can increase the energy of the ball, using the same catapult.
.............................................................................................................................................. [1]
[Total: 6]
3 月 8 日 Exercises , V1.0.38
批注 [26]: pull band further back / exert greater force on
band / increase elastic potential energy
NAME:______
【PART 01】
4(CAMIG-phys-0620-2022-May-june-33-5). An engineer makes a device that absorbs thermal
energy from the Sun. The absorbed energy heats water.
In the device, cold water flows slowly from an upper tank, through a white plastic pipe, to a lower
tank. Energy from the Sun heats the water as it flows, as shown in Fig. 5.1.
Fig. 5.1
(a) The engineer measures the temperature of the water in each tank.
State the name of the instrument used for measuring temperature.
10 / 21
批注 [27]:
thermometer
conduction
............................................................................................................................................. [1]
(b) (i) State the name of the process that transfers thermal energy from the Sun to the white plastic
pipe.
..................................................................................................................................... [1]
(ii) State the name of the process that transfers thermal energy through the plastic wall of the pipe
to the water inside the pipe.
..................................................................................................................................... [1]
(c) The engineer wants to increase the thermal energy absorbed by the water in the pipe.
Suggest two improvements he can make to increase the thermal energy absorbed.
In each case, explain why the suggestion increases the thermal energy absorbed.
improvement 1 ..........................................................................................................................
...................................................................................................................................................
explanation ...............................................................................................................................
...................................................................................................................................................
improvement 2 ..........................................................................................................................
...................................................................................................................................................
explanation ...............................................................................................................................
...................................................................................................................................................[4]
[Total: 7]
【PART 02】
1(CAMIG-phys-0620-2018-oct-nov-32-4). A drone is a machine that can fly. Fig. 4.1 shows a drone
rising into the air, lifting a camera.
Fig. 4.1
The drone obtains energy from a battery of cells.
(a) Complete the sequence of useful energy transfers as the drone rises into the air. One part is done
for you.
..................................... → electrical energy → .............................................. [2]
(b) The drone can move in any direction up or down, backwards or forwards, left or right. It can
also remain stationary above the ground.
Describe the motion and position of the drone when it has both a large quantity of potential energy
and a small quantity of kinetic energy.
...................................................................................................................................................
.............................................................................................................................................. [2]
(c) When the drone moves, it wastes some energy. State the form of wasted energy and describe
批注 [28]:
chemical
gravitational potential energy OR kinetic
hovering OR stationary OR moving slowly owtte
at max height
thermal
dissipated to the air / surroundings
11 / 21
what happens to this energy.
form of energy ..........................................................................................................................
description ................................................................................................................................
.............................................................................................................................................. [2]
[Total: 6]
2(CAMIG-phys-0620-2018-oct-nov-31-5). A tidal barrage (dam) produces electricity using tides.
Fig. 5.1 shows a diagram of a tidal barrage (simplified).
Fig. 5.1
(a) The water behind the barrage (dam) is a store of energy. State the name of this stored energy.
...............................................................................................................................................[1]
(b) Explain how the tidal barrage (dam) produces electricity.
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
...............................................................................................................................................[3]
[Total: 4]
3 月 6 日 Exercises , V1.0.35
批注 [29]: (gravitational) potential energy
批注 [30]: Any 3 from:
water flows through tunnel / has kinetic energy
when tide coming in / going out
(moving) water causes turbines / (component) X to rotate /
turn
(the turbine)turns a generator
NAME:______
【PART 01】
3(CAMIG-phys-0620-2022-May-june-33-2). Fig. 2.1 shows two identical metal blocks, A and B,
being lifted 3.0 m from ground level.
Block A is lifted by a motor. Block B is lifted by a person.
批注 [31]:
Fig. 2.1
(a) Complete the following sentences.
(i) As the motor starts turning, it usefully transfers .................... energy to .................. energy. [2]
12 / 21
(ii) Both blocks gain ............................................... energy. [1]
(b) Both blocks are lifted at the same steady speed. The blocks are then held at a height of 3.0 m.
(i) Compare the energy gained by block A with the energy gained by block B.
..................................................................................................................................... [1]
(ii) Explain why the energy input to the motor is more than the energy gained by block A.
...........................................................................................................................................
...........................................................................................................................................
..................................................................................................................................... [2]
any two from the following:
energy transferred to surroundings
thermal (energy)/ heat lost
work done against friction
motor less than 100% efficient
weight/force/mass AND height/distance moved
time
(iii) An engineer determines the power output of the motor.
State the three measurements that the engineer needs to determine the power output of the motor.
1. .......................................................................................................................................
2. .......................................................................................................................................
3. .......................................................................................................................................[2]
(c) The volume of block A is 0.0089 m3. The mass of block A is 70 kg.
Calculate the density of block A.
density = .............................................. kg / m3 [3]
[Total: 11]
【PART 02】
1(CAMIG-phys-0620-2021-May-june-31-4). A country needs to build new power stations to
provide electricity for homes and industry.
One type of power station is a coal-fired power station.
(a) Describe how the energy stored in the coal is used in a coal-fired power station to generate
electrical energy.
[4]
批注 [32]: any four from:
(coal/it is) burnt/burned
(thermal energy from coal used to) heat/boil water
steam (produced)
turns/spins/moves turbine
(which) turns/spins/moves generator
(b) Some people in the country argue against building a new coal-fired power station.
They say that the power station is expensive and not very efficient.
Explain the meaning of not very efficient.
[1]
批注 [33]: idea that only a small proportion/fraction of the
input energy is usefully transferred OR most of the input
energy is wasted
13 / 21
(c) Apart from cost and efficiency, give two other reasons for not building a coal-fired power station.
1. ...............................................................................................................................................
2. ...............................................................................................................................................[2]
[Total: 7]
批注 [34]: any two from:
releases sulphur dioxide/nitrogen oxide(s) OR produces acid
rain
releases CO2/greenhouse gases OR (contributes to) global
warming
2(CAMIG-phys-0620-2021-Feb-march-32-4). Fig. 4.1 shows an outline of the main parts of a
geothermal power station used to generate electricity. Some parts of the power station are labelled.
idea of need to transport coal
idea of environmental impact of mining
non-renewable fuel
water pollution
Fig. 4.1 (Not to scale)
(a) State the names of the parts of the power station labelled A and B.
part A ........................................................................................................................................
part B ........................................................................................................................................[2]
(b) Geothermal energy is one source of renewable energy.
State two other sources of renewable energy.
1. ...............................................................................................................................................
2. ...............................................................................................................................................[2]
(c) State two environmental advantages, other than being renewable, of a geothermal power station
compared to a coal-fired power station.
1. ...............................................................................................................................................
2. ...............................................................................................................................................[2]
[Total: 6]
批注 [35]:
sunlight
wind
wave
biofuels/biomass
tidal
hydroelectric
批注 [36]: any 2 from:
does not produce carbon dioxide OR does not contribute to
global warming
no sulphur dioxide or nitrous oxides produced
no mining needed for fuel
2 月 28 日 Exercises , V1.0.32
NAME:______
【PART 01】
1. choose right words, TOTAL 8 POINTS
Biofuels
coal
fossil fuels
nonrewables
oil
renewable
solar
wind
Figure 7.2 shows that most of the energy supplies we use are ________.
________ and natural gas are expected to run out this century but reserves of ________ should last
another 200 years. They are described as ___________. Once used, they are gone forever.
14 / 21
批注 [37]: fossil fuels - coal, oil and gas
Oil
coal
non-renewables
Other sources of energy, such as ________, ________, ________ are described as ________.
批注 [38]: wind, solar and biofuel
renewables
2. choose right words, TOTAL 2 POINTS
Different same gaining
losing
Although energy can appear in different forms in different situations, the principle of conservation
of energy states that the total energy in a system always remains the ______.
This means that if one part of a system is losing energy, then some other part must be ______ energy.
3. choose right words, TOTAL 2 POINTS
convection
expands
heats
origin
warmer
Explain why wind power can be traced back to sunlight.
The Sun ______ some parts of the Earth's surface more than others. The surface warms the air above
it so that some parts of the atmosphere are ________ than others. Heated air ______ and moves 一
批注 [39]: Same
gaining
批注 [40]: Heats
warmer
expands
convection
origin
this is a _________ current ( see Chapter 11). This is the ________ of winds.
4(CAMIG-phys-0620-2021-May-june-33-4). (a) A power station burns fossil fuel to produce
electrical energy.
(i) State the form of the energy stored in the fuel.
..................................................................................................................................... [1]
(ii) Some of the energy stored in the fuel is not converted to electrical energy.
Suggest how energy is wasted in the generator.
...........................................................................................................................................
...........................................................................................................................................
..................................................................................................................................... [2]
(b) Solar panels produce electrical energy.
State two advantages and two disadvantages of using solar panels, rather than fossil fuels, to produce
electrical energy.
advantages
1. ...............................................................................................................................................
...................................................................................................................................................
2. ...............................................................................................................................................
...................................................................................................................................................
disadvantages
1. ...............................................................................................................................................
...................................................................................................................................................
2. ...............................................................................................................................................
...................................................................................................................................................[4]
[Total: 7]
2(CAMIG-phys-0620-2021-oct-nov-33-4). (a) (i) State the principle of conservation of energy.
...........................................................................................................................................
..................................................................................................................................... [1]
(ii) Fig. 4.1 shows a type of light bulb. Energy changes occur when electrical energy is supplied to
the light bulb, as shown in Fig. 4.1.
15 / 21
批注 [41]: chemical (energy)
批注 [42]: any two from:
friction
thermal / heat
vibrations / sound
resistance in wires
批注 [43]: any two advantages:
free fuel
renewable
no air pollution / no SO2 / no acid rain
no greenhouse gases / CO2 emissions
little / no maintenance
Quiet
any two disadvantages:
needs a lot of space
no energy at night
less energy when cloudy / winter
D.C.
批注 [44]: energy cannot be created or destroyed OR energy
can only be transferred from one form to another OR total
energy remains the same
Fig. 4.1
Calculate the wasted energy when the total input energy is 500 J.
Use information from Fig. 4.1.
批注 [45]: 500 – 50
450 J
wasted energy = ....................................................... J [2]
(iii) Describe the effect of the wasted energy on the air surrounding the light bulb.
..................................................................................................................................... [1]
(b) Table 4.1 lists situations in which energy is stored.
Complete Table 4.1 by naming the form of energy stored in each situation.
Table 4.1
批注 [46]: temperature (of air) increases / increases internal
energy
批注 [47]: Chemical
Chemical
Kinetic
(gravitational) potential
[4]
[Total: 8]
2 月 21 日 Exercises , V1.0.31
【PART 01】
1. TOTAL 6 POINTS
16 / 21
NAME:______
2. TOTAL 4 POINTS
3. choose right words, TOTAL 2 POINTS
Different same gaining
losing
Although energy can appear in different forms in different situations, the principle of conservation
of energy states that the total energy in a system always remains the ______.
This means that if one part of a system is losing energy, then some other part must be ______ energy.
【PART 02】
1(CAMIG-phys-0620-2019-oct-nov-11-4). Which quantity is a force due to a gravitational field?
A density
B mass
C weight
D volume
2(CAMIG-phys-0620-2019-oct-nov-11-5). The density of air is 1.2 kg / m3.
A room has dimensions 5.0 m × 4.0 m × 3.0 m.
What is the mass of the air in the room?
A 0.02 kg
B 0.10 kg
C 50 kg
D 72 kg
3(CAMIG-phys-0620-2019-oct-nov-11-7). Which statement gives a complete description of any
object that is in equilibrium?
A There are no forces acting.
B There is no resultant force.
C There is no resultant force and no resultant turning effect.
D There is no resultant turning effect.
4(CAMIG-phys-0620-2019-oct-nov-11-9). Brakes are used to slow down a moving car.
Into which form of energy is most of the kinetic energy converted as the car slows down?
A chemical
B elastic
C thermal
D sound
5(CAMIG-phys-0620-2019-oct-nov-11-10). Which does not transfer useful energy?
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批注 [48]: Same
gaining
A emitting a sound wave
B measuring a temperature
C passing an electric current
D pushing a box along the floor
6(CAMIG-phys-0620-2019-oct-nov-11-11). The power output from solar panels is recorded every
day for a month.
The graph shows the output recorded.
批注 [49]: CDCCB
Which conclusion can be drawn from this graph?
A The power output from the solar panels changes from day to day.
B The power output from the solar panels is cheap to produce.
C Solar panels create no pollution.
D Solar energy is renewable.
7(CAMIG-phys-0620-2019-oct-nov-11-12). A drawing pin (thumb tack) has a sharp point at one
end and a flat surface at the other end.
The pin is pushed into a wooden board.
How do the pressure and the force at the sharp point compare with the pressure and the force on the
flat surface?
批注 [50]: C
8(CAMIG-phys-0620-2019-oct-nov-11-13). The table shows four forces. Each force acts on a
different surface.
Which row shows the least pressure?
批注 [51]: C
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ACCAC
DABBD
9(CAMIG-phys-0620-2019-May-june-11-4). An arrow travels horizontally in a straight line at
constant speed.
In which direction does the weight act?
10(CAMIG-phys-0620-2019-May-june-11-10). A machine is very efficient.
What does this mean?
A It produces a large amount of power.
B It uses very little energy.
C It wastes very little energy.
D It works very quickly.
11(CAMIG-phys-0620-2019-May-june-11-11). An object is lifted vertically by a motor.
In which example is the power produced the greatest?
A lifting it a shorter distance in a longer time
B lifting it the same distance in a longer time
C lifting it a shorter distance in the same time
D lifting it the same distance in a shorter time
12(CAMIG-phys-0620-2022-May-june-11-9). A mass hangs vertically from a spring.
The mass is raised to a point P and is then released.
The mass oscillates repeatedly between point P and a lower point Q.
Which energies alternately increase and decrease throughout the oscillations?
A gravitational potential energy, kinetic energy and elastic energy
B gravitational potential energy and kinetic energy only
C gravitational potential energy, kinetic energy and internal energy
D internal energy and elastic energy
13(CAMIG-phys-0620-2022-May-june-13-9). In which form is energy stored by stretching a spring?
A chemical energy
B elastic potential energy
C gravitational potential energy
D thermal energy
14(CAMIG-phys-0620-2022-May-june-12-9). A tennis ball is dropped from position 1. It falls
vertically onto a hard surface at position 2.
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批注 [52]: A
Which energy changes have taken place between position 1 and position 2?
A gravitational potential → kinetic → chemical
B gravitational potential → kinetic → elastic (strain)
C kinetic → gravitational potential → chemical
D kinetic → gravitational potential → elastic (strain)
15(CAMIG-phys-0620-2022-Feb-march-22-8). The diagram shows a uniform metre rule, MN,
pivoted at its midpoint P.
Two weights, W1 and W2, are hung either side of the pivot.
The rule remains balanced.
Which row is correct?
批注 [53]: D
批注 [54]: chemical (energy)
【PART 03】
1(CAMIG-phys-0620-2021-May-june-33-4). (a) A power station burns fossil fuel to produce
electrical energy.
(i) State the form of the energy stored in the fuel.
..................................................................................................................................... [1]
(ii) Some of the energy stored in the fuel is not converted to electrical energy.
Suggest how energy is wasted in the generator.
...........................................................................................................................................
...........................................................................................................................................
..................................................................................................................................... [2]
(b) Solar panels produce electrical energy.
State two advantages and two disadvantages of using solar panels, rather than fossil fuels, to produce
electrical energy.
advantages
1. ...............................................................................................................................................
...................................................................................................................................................
2. ...............................................................................................................................................
批注 [55]: any two from:
friction
thermal / heat
vibrations / sound
resistance in wires
批注 [56]: any two advantages:
free fuel
renewable
no air pollution / no SO2 / no acid rain
no greenhouse gases / CO2 emissions
little / no maintenance
Quiet
any two disadvantages:
needs a lot of space
no energy at night
less energy when cloudy / winter
D.C.
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...................................................................................................................................................
disadvantages
1. ...............................................................................................................................................
...................................................................................................................................................
2. ...............................................................................................................................................
...................................................................................................................................................[4]
[Total: 7]
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