Lorne Park Secondary School
Lorne Park Secondary School
SPH 3UO/E Mock Exam
Time: 1.5 Hours
No. of Pages: 15
Name: ___________________________
Instructions to Students
This is a practice exam meant to give you an idea of the types of questions and the
format of your final exam. It is NOT an extensive review of the course. There may be
topics covered here that will not appear on your final exam, and there may be
additional topics on your final exam that do not appear here. Please use this as a
study tool, NOT as your study guide.
Section
Part A
Part B
Part C
Part D
Type
Knowledge
Communication
Application
Inquiry
Marks
25
15
45
30
Time Suggested
25 minutes
15 minutes
30 minutes
20 minutes
% Weight
20
20
40
20
Non Programmable, non-graphing calculators are permitted
Approved formula sheet is allowed
Physics Constants
g = 9.8 m/s2
Fundamental electron charge:
-1.60 x 10-19C
Mass of the Earth
5.98 x 1024 kg
Coulomb’s Law Constant
9 x 109 Nm2/C2
Radius of the Earth
6.38 x 106 m
Gravitational Constant
6.67 x 10-11 Nm2/kg2
Part A: Multiple Choice [25 marks]
Identify the choice that best completes the statement or answers the question on the scantron sheet provided.
1.
a.
b.
c.
Which of the following is a "scalar" quantity?
distance
d. displacement
velocity
e. none of the above
acceleration
2. Using a variety of stopwatches, four students reported the time for a ball to drop to the ground from the
same height. The recorded times were 1.85 s, 1.8 s, 1.9 s, and 2 s. The average time, expressed in the
correct manner, is
a. 1.888 s
d. 1.9 s
b. 1.89 s
e. 2 s
c. 1.8 s
3.
a.
b.
c.
The slope of a velocity-time graph always represents
displacement
d. acceleration
distance
e. change in acceleration
change in velocity
1
Lorne Park Secondary School
4. The position-time graph that represents "uniform motion" is
a. A
b. B
c. C
5.
a.
b.
c.
d. D
e. E
A cyclist rides a bicycle 4.0 km west, then 3.0 km north. What is the cyclist's displacement?
7.0 km [37° N of W]
d. 5.0 km [37° W of N]
7.0 km [37° W of N]
e. 1.0 km [37° W of N]
5.0 km [37° N of W]
6. A hockey puck slides along an ice surface shortly after it has left the hockey stick that propelled it. Which
of the following free-body diagrams best represents the hockey puck?
a. A
b. B
c. C
d. D
e. E
7. The free-body diagram below represents a 200-g rock suspended by a string. What is the rock's
acceleration? (Assume 2 significant digits.)
a. 6.2 m/s2 [up]
b. 33 m/s2 [down]
c. 0.25 m/s2 [down]
d. 6.2 x 10–3 m/s2 [up]
e. the rock does not accelerate
2
Lorne Park Secondary School
8. A hockey puck of mass 150 g is sliding south along the ice and slows at a rate of 1.2 m/s2. What is the net
force acting on the puck?
a. 1.8 102 N [N]
d. 1.8 10-1 N [N]
b. 1.8 102 N [S]
e. 1.9 10-1 N [S]
1
c. 1.8 10 N [N]
9.
a.
b.
c.
If you weighed 112 N on the Moon where g = 1.6 N/kg, how much would you weigh on Earth?
d. 1.1 104 N
1.1 102 N
4
e. 6.9 103 N
1.7 10 N
6.9 102 N
10. Study the force system diagram pictured below and select the factor which would NOT influence the
amount of kinetic friction.
a. object's mass, m
b. coefficient of kinetic friction,
c. normal force, FN
K
d. applied force, FA
e. gravitational field strength, g
11.
a.
b.
c.
The capacity to do work is known as
work
efficiency
energy
12.
a.
b.
c.
The unit newton metre (N·m) is equivalent to
kg·m/s2
d. watt
kg·m3/s2
e. kg·m/s
kg·m2/s2
d. heat
e. energy transformation
13. A construction worker does 450 J of work in lifting a load of bricks from the ground to a support stand
1.50 m from the ground. What was the mass of the bricks she lifted?
a. 300 kg
d. 0.327 kg
b. 3.06 kg
e. 30.6 kg
c. 68.9 kg
3
Lorne Park Secondary School
14. Assuming that g is constant, which of the following expressions describes the total work done by an
arrow travelling vertically upward?
a.
d.
b.
c.
e.
15.
a.
b.
c.
The unit of efficiency is
joule
watt
kg·m/s2
16.
a.
b.
c.
The period of a pendulum depends on which of the following?
amplitude of the vibration
d. density of the bob
mass of the bob
e. all of the above
length of the pendulum
17.
a.
b.
c.
d.
e.
In a longitudinal wave,
The particles move parallel to the direction of the wave motion.
The particles move perpendicular to the direction of the wave motion.
Energy causes the particles to move forward with the wave.
Energy is propagated by crests and troughs.
The speed is unaffected by the type of medium used.
18.
a.
b.
c.
Which of the following frequencies is ultrasonic?
12 Hz
d. 5000 Hz
25 Hz
e. 25 000 Hz
332 Hz
d. newton
e. none of the above
19. One sound source has an intensity of 40 dB, while another has an intensity of 70 dB. The intensity of
these two differs by a factor of
a. 3
d. 2800
b. 30
e. 1030
c. 1000
20. When standing waves are formed on a string fastened at both ends, how many nodes should be present in
the third overtone?
a. one
d. four
b. two
e. five
c. three
4
Lorne Park Secondary School
21. A positive charge attracts object X.
A negative charge repels object Y.
Object X is attracted to object Y.
Which is of the following is the most likely explanation?
a. Object X has a positive charge. Object Y has a negative charge.
b. Object X has a negative charge. Object Y has a negative charge.
c. Object X has a positive charge. Object Y has a positive charge.
d. Object X has a negative charge. Object Y has a positive charge.
e. Object X has a neutral charge. Object Y has a negative charge.
22. Two identical charges are 36 mm apart. The electrostatic force between them is 1.3 N. What is the size of
each charge?
a. 1.9 10–13 C
d. 2.2 10 –6 C
b. 4.3 10 – 7 C
e. 4.3 10–6 C
–12
c. 5.2 10 C
23. If 2.75 1019 electrons pass a point in a circuit in 30 s, the current is
a. 52 A
d. 0.15 A
b. 9.2 A
e. 1.3 102 A
c. 4.4 A
24.
a.
b.
c.
d.
e.
Which statement about the magnetic north pole of Earth is true?
Its location never changes.
It corresponds to the N-pole of a bar magnet.
It corresponds to the S-pole of a bar magnet.
It is at the same location as the geographic north pole of Earth.
both B and D
25.
a.
b.
c.
d.
e.
A current can be induced in a straight conductor when
The conductor is held near the N-pole of a bar magnet.
The conductor is held near the S-pole of a bar magnet.
The conductor is held in a steady magnetic field.
The conductor is held in a changing magnetic field.
A current cannot be induced in a straight conductor.
5
Lorne Park Secondary School
Part B Communication [15 marks]
With the use of all relevant formulas and/or diagrams explain the physics behind the following observations.
[3 marks each, 15 marks total]
1. When two Go trains pass each other in opposite direction it appears to a passenger on one Go Train that
the second Go train has sped up.
2. When a car suddenly slams on the breaks a passenger’s head may keep moving forwards causing whip
lash.
3. When ice cubes are added to a glass of Cola, the Cola’s temperature decreases.
4. When a police car approaches you, the frequency of the siren appears to increase.
5. On a strand of Christmas lights there can be a few lights out, but most of the lights are still lit.
6
Lorne Park Secondary School
Part C Application [45 marks total]
Using all relevant formulas and/or diagrams answer the following questions in the space provided. Be
sure to show all work and use a statement for your final answer.
1.
a) A bike and rider have a mass of 95 kg. The rider starts riding at 13 km/hr [E]. Half an hour later the
rider has changed direction at is travelling at 16 km/hr [S]. What is the average velocity bike and rider?
[3 marks]
b) The rider takes a lunch break starts pedaling home at 1.0 x 100 km/hr. 23s later he is pedaling at
14km/hr. What is his acceleration? [3 marks]
c) What force must the rider exert in order to accomplish this acceleration? [2 marks]
d) If the coefficient of friction for dry asphalt on rubber is 1.07, what amount of friction is the rider
overcoming? [2 marks]
2. a) A volleyball is thrown up with an initial velocity of 1.2 m/s [up]. What is the maximum height the ball
can reach? [3 marks]
b) At this height how much potential energy does the ball have? [2 marks]
7
Lorne Park Secondary School
3. a) A 4.0kg block is pushed 0.5m to the top of a 1.2m high ramp. If 1.1 x 102 N of force is used to
accomplish this, how efficient is the ramp? [3 marks]
b) If the ramp is not 100% efficient, where does the “lost” energy go? [1 mark]
4. Four 5.0 x 101 g ice cubes are added to 5.00 x 102 g of water. If the water is initially at room temperature
(22C), and no energy is lost, what will the final temperature of the water be. Hint be sure to include the
melted ice in your calculations [4 marks]
5. When Uranium 235 is bombarded with a neutron, the following reaction occurs.
235
1
1
139
94
92U + 0n → 3 0n +
56Ba + 36Kr
Uranium – 235
3.9023 x 10-25 kg
Mass in kg
Barium – 139
Krypton – 94
2.3081 x 10-25 kg
1.5609 x 10-25 kg
Neutron
1.6749 x 10-27 kg
Use the above information to determine how much energy is produced from this reaction. [4 marks]
6. An air horn sounds out a sound blast in chilly -4C air. 3.5s later an echo is heard. How far away did the
sound wave travel before being echoed back? [3 marks]
8
Lorne Park Secondary School
7. A police car approaches the scene of a fender-bender (car accident) at 78 km/hr. If it’s siren is emitting a
frequency of 1200 Hz, what frequency do the drivers of the damaged cars hear? [3 marks]
8. Using the measurements given, complete the following VIR chart. [4 marks]
V
I
R
1
I2 = 2A
2
3
t
9. A T.V on a circuit requires 15A of current and 120V of electric potential energy in order to function. If
the cost of electricity is $0.18 per kWhr, how much does it cost to watch a 5.0 hour Jersey Shore
marathon? [4 marks]
10. Complete the following diagrams: [1 mark each, 4 marks total]
a) The open circles represent compasses. Show the directions of the compass needles.
b)
Show the connections of the wires to the cell so that the indicated poles will be produced.
9
Lorne Park Secondary School
c) The diagram below shows a cross-section of a current-carrying loop between the poles of a permanent
magnet. In which direction will the coil turn?
d) The diagram shows a bar magnet moving down into a coil. Label all N- and S-poles on the inducing
and induced magnet.
Part D Inquiry [30 marks total]
Using all relevant formulas and/or diagrams, answer the following questions in the spaces provided. Be sure
to show all work.
1.
Use the following data table to answer the questions
a) Draw a speed vs time graph in the space provided showing the motion
of the object. [2 marks]
Speed (m/s)
0.0
0.2
0.5
0.5
0.5
0.4
0.1
0.0
Time (s)
0
30
60
90
120
150
170
200
b)
What is the acceleration of the object from 0-60s? [2 marks]
c)
What is the object’s displacement from 120-200s? [2 marks]
d)
How would the graph change if the object achieved 0.5 m/s in 30s instead of 60s? Draw what this
would look like on the graph. [2 marks]
10
Lorne Park Secondary School
2. Two children wrestle over a toy of mass 1.5 kg. The boy pulls with a force of 6.0 N [W] while the girl
pulls with a force of 8.0 N [E].
(a) Draw a free-body diagram of the situation. [2 marks]
(b) The children lose their grip on the toy and it slides across the floor with an acceleration of 1.0 m/s2 [E].
What is the Fnet acting on the toy? [2 marks]
(c) The toy eventually comes to a stop. What force causes this motion. Is this force shown in your
diagram from part a) why or why not? [2 marks]
3. A rollercoaster track’s initial drop is 26m above the ground. The roller coaster cars with passengers in it
has a mass of 2.5 x 103 kg.
a) Assuming that the cars start from rest, how fast will they be going when they are 17 m from the
bottom of the drop? [2 marks]
b) How fast will they be going at the bottom of the drop? [2 marks]
c) If the coaster takes 15s to complete get from the top of the drop to the bottom, how much power does
the coaster have? [2 marks]
11
Lorne Park Secondary School
4. Show that the distance in km of a lightning strike can be found by counting the time difference between
seeing a lightning bolt and hearing the thunder. The “lightning rule” states that the distance, in kilometers,
of the lightning strike can be calculated by dividing this time difference by three. Show with the use of all
necessary formulas why this rule of thumb is valid. You can use an air temperature of 20C in your
answer. [3 marks]
5. What is the difference between music and noise? Show the difference using oscilloscope pictures. [2
marks]
6. Both ammeters and voltmeters contain a galvanometer and a resistor. Describe how the components are
assembled in each, and with the use of at least 2 diagrams explain why. [4 marks]
12
Lorne Park Secondary School
Answer Section
MULTIPLE CHOICE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
A
E
D
A
C
D
A
D
C
D
C
C
E
A
E
C
A
E
C
E
E
B
D
C
D
13