Forces Practice Exam Questions
1 of 8
0 1
A force is a push or pull that acts on an object. There are two types of forces:
contact and non-contact.
0 1 . 1
Identify whether each force in Table 1 is a contact or non-contact
force.
[7 marks]
Place one tick in each row.
Table 1
Force
friction
Contact
Non-Contact
air resistance
gravitational
upthrust
magnetic
reaction
electrostatic
0 1 . 2
Select one word from the list below to complete the sentence.
fields
space
Non-contact forces act in fields
experience a force.
0 1 . 3
gravity
speed
zones
, a special area where an object can
List three things that forces can do to an object.
1. Change the
[1 mark]
[3 marks]
of the object.
2. Change the
direction
of the object.
3. Change the
shape
of the object.
11
Forces Practice Exam Questions
2 of 8
0 2
Figure 1 shows a sailing boat pulling out of a harbour.
Figure 1
direction of travel
B
D
A
C
0 2 . 1
Give the letter of the arrow that represents upthrust.
[1 mark]
a
0 2 . 2
Which force is represented by arrow B?
[1 mark]
Tick one box.
air resistance
gravity
reaction
driving force
0 2 . 3
The boat is travelling at a constant speed in the direction shown.
Give the letters of the forces that must be balanced.
[2 marks]
Give two letters.
B
0 2 . 4
and
D
As the boat passes out of the harbour, it accelerates (speeds up).
One force is now larger than the other forces.
[1 mark]
Give the letter of the force that is now the largest.
D
5
Forces Practice Exam Questions
3 of 8
0 3
Figure 2 shows a skateboarder on a ramp. The skateboarder is investigating the
effect that different surfaces have on the motion of the skateboard. They move
the ramp onto different surfaces and measure the distance that the skateboard
travels from the bottom of the ramp.
Figure 2
The skateboarder’s results are shown in Table 2.
Table 2
0 3 . 1
Surface
Distance Travelled (m)
Repeat 1 Repeat 2 Repeat 3 Mean
concrete path
8.1
8.5
8.0
paving slabs
7.5
7.4
7.6
wooden decking
6.7
7.3
7.0
7.0
grass
1.0
1.2
0.9
1.0
artificial grass
3.1
3.2
3.0
3.1
sand
0.5
0.4
0.4
0.4
8.2
Name the independent variable in the investigation.
[1 mark]
The surface
0 3 . 2
[1 mark]
Calculate the mean distance travelled by the skateboard on paving
slabs.
(7.5+7.4+7.6)/3
mean =
7.5
m
4 of 8
0 3 . 3
Forces Practice Exam Questions
Name one resistive force that acts on the skateboard.
[1 mark]
Fraction
0 3 . 4
0 3 . 5
State two things that will happen to the skateboard as a result of
the resistive forces acting on it.
1.
It will slow down the stronger the friction
2.
It will damage the skateboard if the friction is very powerful.
The skateboarder compared the speed of the skateboard on
concrete and on artificial grass.
[2 marks]
[1 mark]
On which surface did the skateboard slow down the quickest?
Tick one box.
artificial grass
concrete
0 3 . 6
Explain your answer to 03.5.
[3 marks]
If the distance was 10m the artificial grass made it only go 3m while the concrete made it go
8m so the difference between 8m and 10m is lower than that of 10m and 3m.
9
5 of 8
0 4
Forces Practice Exam Questions
A student measures the weight of their school bag using the piece of equipment
shown in Figure 3.
Figure 3
0 4 . 1
Name the piece of equipment shown in Figure 3.
[1 mark]
Force meter/ Newton meter
0 4 . 2
Figure 4 shows the student’s measurement.
Figure 4
N
20
25
30
Write down the weight of the bag.
[1 mark]
weight = 22
N
6 of 8
0 4 . 3
Forces Practice Exam Questions
Write down the equation that links gravitational field strength, mass
and weight.
[1 mark]
Gravitational field strength on Earth=10N/KG
0 4 . 4
A second student measures the mass of their school bag as 2.3kg.
[3 marks]
Gravitational field strength on Earth = 10N/kg
Calculate the weight of the bag on Earth. Include the unit in your answer.
2.3kg x 10=23N
mass = 2.3
0 4 . 5
The gravitational field strength on the Moon is 1.6N/kg.
unit = KG
[4 marks]
Explain what would happen to the mass and weight of a bag if it was taken to the
Moon.
The mass of the bag would stay the same because mass is just a measure of how
many particles are in an object
The weight of the bag would decrease because the bags mass is 2.3kg and 2.3 x
1.6=3.68N and 3.68N<23N
10
becas
7 of 8
0 5
Forces Practice Exam Questions
A student uses a spring to work out the weight of an apple. They set up the
equipment as shown in Figure 5.
Figure 5
0 5 . 1
Write down the equation that links extension, force and spring
constant.
[1 mark]
The spring constant of the spring is 27N/m
0 5 . 2
The spring constant of the spring is 27N/m.
The extension of the spring is 0.07m.
[3 marks]
Calculate the weight of the apple. Include the unit in your answer.
27N/0.07=1.89
weight = 1.89 unit = KG
0 5 . 3
The student continues to add apples to the spring.
The spring reaches its elastic limit when five apples have been added.
[1 mark]
Describe what will happen to the spring once it exceeds its elastic limit.
It will rip apart due to it reaching its elastic limit making it unable to handle the
other force(gravity)
Forces Practice Exam Questions
8 of 8
On Figure 6, sketch the shape of the graph produced by the
student’s investigation.
[3 marks]
Figure 6
Extension (m)
0 5 . 4
0
1
2
3
4
5
6
7
8
Number of Apples
8