1. Exam Review Part 1
SPH4C

2. Definitions
acceleration

3. Definitions
acceleration N. The rate of change in the velocity of an object

4. Definitions
charge

5. Definitions
charge O. A quantity of electricity

6. Definitions
current

7. Definitions
current J. The rate of flow of electric charge

8. Definitions
density

9. Definitions
density H. The mass per unit volume of a material

10. Definitions
displacement

11. Definitions
displacement C. The change in position of an object

12. Definitions
force

13. Definitions
force M. A push or pull

14. Definitions
mass

15. Definitions mass A. The quantity of matter in an object
More mass = More inertia

16. Definitions
potential difference

17. Definitions
potential difference L. The energy per unit charge

18. Definitions
power

19. Definitions
power I. The rate of doing work or transforming energy

20. Definitions
pressure

21. Definitions
pressure G. The magnitude of the force per unit area

22. Definitions
resistance

23. Definitions
resistance K. The opposition to the flow of charge in a material

24. Definitions
torque

25. Definitions
torque F. The turning effect caused by a force

26. Definitions
velocity

27. Definitions
velocity D. The rate of change in the position of an object

28. Definitions
volume

29. Definitions
volume B. The amount of space an object takes up

30. Definitions
work

31. Definitions
work E. The amount of energy transferred to an object by a force

32. Units
acceleration

33. Units
acceleration I. Metres per second per second (m/s2)

34. Units
charge

35. Units
charge B. Coulomb (C)

36. Units
current

37. Units
current A. Ampere (A)

38. Units
density

39. Units
density F. Kilograms per cubic metre (kg/m3)

40. Units
displacement

41. Units
displacement G. Metre (m)

42. Units
force

43. Units
force J. Newton (N)

44. Units
mass

45. Units
mass E. Kilogram (kg)

46. Units
potential difference

47. Units
potential difference N. Volt (V)

48. Units
power

49. Units
power O. Watt (W)

50. Units
pressure

51. Units
pressure L. Pascal (Pa)

52. Units
resistance

53. Units
resistance M. Ohm (W)

54. Units
torque

55. Units
torque K. Newton-metre (N·m)

56. Units
velocity

57. Units
velocity H. Metres per second (m/s)

58. Units
volume

59. Units
volume C. Cubic metres (m3)

60. Units
work

61. Units
work D. Joule (J)

62. Units
Weight is measured using which of the following units? A. kg B. N C. J D. Both A and B

63. Units
Weight is measured using which of the following units? A. kg *B. N C. J D. Both A and B

64. Units
Kinetic energy is measured using which of the following units? A. kg B. N C. J D. W

65. Units
Kinetic energy is measured using which of the following units? A. kg B. N *C. J D. W

66. Units
What are the units of efficiency? Explain why. Efficiency has no units because it is the ratio of energy out to energy in – the units cancel out.

67. Motion
What is the difference between a scalar and a vector? Give an example of each: Scalars have magnitude only (speed, work, current, etc.). Vectors have magnitude and direction (velocity, force, etc.).

68. Motion
What is your displacement if you walk 24 m east and then 15 m west? A. 9 m east B. 9 m west C. 39 m east D. 39 m west

69. Motion
What is your displacement if you walk 24 m east and then 15 m west? *A. 9 m east B. 9 m west C. 39 m east D. 39 m west
15 m
9 m
24 m

70. Motion
The slope of a position-time graph measures which of the following quantities? A. acceleration B. displacement C. velocity D. none of the above

71. Motion
The slope of a position-time graph measures which of the following quantities? A. acceleration B. displacement *C. velocity D. none of the above

72. Motion
Which of the following situations most accurately demonstrates an object moving with constant velocity? A. a bungee jumper B. a sailboat in a steady wind C. the Moon orbiting the Earth D. both B and C

73. Motion
Which of the following situations most accurately demonstrates an object moving with constant velocity? A. a bungee jumper *B. a sailboat in a steady wind C. the Moon orbiting the Earth D. both B and C
The velocity of the Moon’s orbit cannot be constant because its direction changes.

74. Motion
What is the average speed of a vehicle that takes 0.5 h to travel 30 km? A. 15 km/h B. 60 km/h C. 150 km/h D. It cannot be determined.

75. Motion
What is the average speed of a vehicle that takes 0.5 h to travel 30 km? A. 15 km/h *B. 60 km/h C. 150 km/h D. It cannot be determined.

76. Motion
Ms. Rosebery is driving at 20 m/s [N] when she hits the brakes and comes to a complete stop in 10 s. Her acceleration while she is braking is:
0 B.
2 m/s2 [N]
C. 2 m/s2 [S]
D. It cannot be determined.

77. Motion
Ms. Rosebery is driving at 20 m/s [N] when she hits the brakes and comes to a complete stop in 10 s. Her acceleration while she is braking is:
0 B.
2 m/s2 [N]
*C. 2 m/s2 [S]
D. It cannot be determined.

78. Motion
An object with an initial velocity of 4.0 m/s [N] is accelerated at 2.0 m/s2 [S] for 2.0 s. What is the final velocity of the object? A. 4.0 m/s [S] B. 8.0 m/s [N] C. 8.0 m/s [S] D. zero

79. Motion
An object with an initial velocity of 4.0 m/s [N] is accelerated at 2.0 m/s2 [S] for 2.0 s. What is the final velocity of the object? A. 4.0 m/s [S] B. 8.0 m/s [N] C. 8.0 m/s [S] *D. zero

80. Motion
A ball is dropped from some height. Neglecting air resistance, while the ball is falling, the magnitude of its velocity increases and the magnitude of its acceleration _____________. A. increases B. decreases C. is zero D. is a non-zero constant

81. Motion
A ball is dropped from some height. Neglecting air resistance, while the ball is falling, the magnitude of its velocity increases and the magnitude of its acceleration _____________. A. increases B. decreases C. is zero *D. is a non-zero constant

82. Forces: Matching
applied force

83. Forces: Matching
applied force F. force that results when one object contacts another

84. Forces: Matching
drag

85. Forces: Matching
drag E. force that opposes the motion of an object through a fluid (including air)

86. Forces: Matching
friction

87. Forces: Matching
friction C. force that acts opposite to motion or attempted motion

88. Forces: Matching
normal force

89. Forces: Matching
normal force D. perpendicular force exerted by a surface

90. Forces: Matching
tension

91. Forces: Matching
tension A. force exerted on an object by an attached rope or string

92. Forces: Matching
weight

93. Forces: Matching
weight B. gravitational force on an object

94. Forces
Which object has the least inertia? A. a feather B. a pen C. a textbook D. a desk

95. Forces
Which object has the least inertia? *A. a feather B. a pen C. a textbook D. a desk
More mass = More inertia

96. Forces
A 5.0 kg object has an net force of 30.0 N acting on it. What is the acceleration of the object? A. 6 m/s2 B. 30 m/s2 C. 150 m/s2 D. It cannot be determined.

97. Forces
A 5.0 kg object has an net force of 30.0 N acting on it. What is the acceleration of the object? *A. 6 m/s2 B. 30 m/s2 C. 150 m/s2 D. It cannot be determined.

98. Forces
A book is resting on a table. The Earth is exerting a gravitational force of 8 N [down] on the book. Which of the following is the reaction force? A. 8 N [up] the table exerts on the book B. 8 N [down] the book exerts on the table C. 8 N [up] the book exerts on the Earth D. There is no reaction force.

99. Forces
A book is resting on a table. The Earth is exerting a gravitational force of 8 N [down] on the book. Which of the following is the reaction force? A. 8 N [up] the table exerts on the book B. 8 N [down] the book exerts on the table *C. 8 N [up] the book exerts on the Earth D. There is no reaction force.

100. Forces
What is the weight of a rock of mass 1.5 kg? A N B. 6.5 N C. 9.8 N D. 15 N

101. Forces
What is the weight of a rock of mass 1.5 kg? A N B. 6.5 N C. 9.8 N *D. 15 N

102. Forces
Which of Newton's Laws explains why you feel as if you are being pushed back in the seat when the vehicle in which you are riding suddenly accelerates forward? A. Newton's 1st B. Newton's 2nd C. Newton's 3rd D. none of the above

103. Forces
Which of Newton's Laws explains why you feel as if you are being pushed back in the seat when the vehicle in which you are riding suddenly accelerates forward? *A. Newton's 1st B. Newton's 2nd C. Newton's 3rd D. none of the above

104. Forces
Fuzzy dice are hanging from the rear-view mirror of a car that is travelling backward at constant speed. The dice are: A. angled toward the back of the car B. angled toward the front of the car C. hanging straight down D. It cannot be determined.

105. Forces
Fuzzy dice are hanging from the rear-view mirror of a car that is travelling backward at constant speed. The dice are: A. angled toward the back of the car B. angled toward the front of the car *C. hanging straight down D. It cannot be determined.

106. Forces
A box is being pushed across a surface with a constant velocity of 3.0 m/s [W]. What is the direction of the frictional force? A. West B. East C. up D. down

107. Forces
A box is being pushed across a surface with a constant velocity of 3.0 m/s [W]. What is the direction of the frictional force? A. West *B. East C. up D. down

108. Simple Machines
A machine may change the ____________ of a force. A. direction B. magnitude C. both A and B D. Neither A nor B

109. Simple Machines
A machine may change the ____________ of a force. A. direction B. magnitude *C. both A and B D. Neither A nor B

110. Simple Machines
Pliers are made up of two attached __________. A. inclined planes B. levers C. screws D. wedges

111. Simple Machines
Pliers are made up of two attached __________. A. inclined planes *B. levers C. screws D. wedges

112. Simple Machines
Stairs are considered to be a member of which family of simple machines? A. inclined plane B. lever C. both A and B D. neither A nor B

113. Simple Machines
Stairs are considered to be a member of which family of simple machines? *A. inclined plane B. lever C. both A and B D. neither A nor B

114. Simple Machines
If it takes a force of 10 N to pull a 20 N weight up an inclined plane, the AMA was: A. 0.5 B. 1 C. 2 D. It cannot be determined.

115. Simple Machines
If it takes a force of 10 N to pull a 20 N weight up an inclined plane, the AMA was: A. 0.5 B. 1 *C. 2 D. It cannot be determined.

116. Simple Machines
Which will be larger: actual mechanical advantage (AMA) or ideal mechanical advantage (IMA)? A. AMA B. IMA C. They are equal. D. It cannot be determined.

117. Simple Machines
Which will be larger: actual mechanical advantage (AMA) or ideal mechanical advantage (IMA)? A. AMA *B. IMA C. They are equal. D. It cannot be determined.
In the real world, friction reduces the mechanical advantage.

118. Simple Machines
Torque on a lever will increase when the force is applied ______________ the fulcrum. A. closer to B. further from C. either A or B D. neither A nor B

119. Simple Machines
Torque on a lever will increase when the force is applied ______________ the fulcrum. A. closer to *B. further from C. either A or B D. neither A nor B

120. Simple Machines
When the effort torque is equal to the load torque, the lever is in _________ equilibrium. A. constant B. inertial C. static D. all of the above

121. Simple Machines
When the effort torque is equal to the load torque, the lever is in _________ equilibrium. A. constant B. inertial *C. static D. all of the above

122. Simple Machines
A wheelbarrow is an example of a _______ class lever. A. 1st B. 2nd C. 3rd D. It is not a lever.

123. Simple Machines
A wheelbarrow is an example of a _______ class lever. A. 1st *B. 2nd C. 3rd D. It is not a lever.

124. Simple Machines
Which class of lever will always have an IMA of less than 1? A. 1st B. 2nd C. 3rd D. all of them

125. Simple Machines
Which class of lever will always have an IMA of less than 1? A. 1st B. 2nd *C. 3rd D. all of them

126. Simple Machines
What is the ideal mechanical advantage of the pulley system at right? A. 0 B. 1 C. 2 D. 3

127. Simple Machines
What is the ideal mechanical advantage of the pulley system at right? A. 0 B. 1 *C. 2 D. 3

128. Simple Machines
If a small gear is used to turn a large gear, the __________ will increase. A. speed B. torque C. both A and B D. neither A nor B

129. Simple Machines
If a small gear is used to turn a large gear, the __________ will increase. A. speed *B. torque C. both A and B D. neither A nor B

130. Energy
The work done on a system is equal to its change in: A. force B. energy C. power D. both B and C

131. Energy
The work done on a system is equal to its change in: A. force *B. energy C. power D. both B and C

132. Energy
Energy may be measured in: A. Joules B. calories C. kilowatt-hours D. all of the above

133. Energy
Energy may be measured in: A. Joules B. calories C. kilowatt-hours *D. all of the above

134. Energy
1 Joule is equivalent to:

135. Energy
1 Joule is equivalent to:

136. Energy
A girl lifts a book at constant velocity. Which of the following is increased? The book's: A. gravitational potential energy B. kinetic energy C. both A and B D. neither A nor B

137. Energy
A girl lifts a book at constant velocity. Which of the following is increased? The book's: *A. gravitational potential energy B. kinetic energy C. both A and B D. neither A nor B

138. Energy
The 4-kg book is lifted 1 m in 2 s. What was the power output? A. 0 W B. 20 W C. 40W D. 80 W

139. Energy
The 4-kg book is lifted 1 m in 2 s. What was the power output? A. 0 W *B. 20 W C. 40W D. 80 W

140. Energy
What work is required to accelerate a 2-kg toy car from a speed of 1 m/s to a speed of 2 m/s? A. 1 J B. 3 J C. 4 J D. It cannot be determined.

141. Energy
What work is required to accelerate a 2-kg toy car from a speed of 1 m/s to a speed of 2 m/s? A. 1 J *B. 3 J C. 4 J D. It cannot be determined.

142. Energy
An object with a kinetic energy of 40 J is brought to rest by friction. The work done by friction was: A. -40 J B. 0 J C. 40 J D. It cannot be determined.

143. Energy
An object with a kinetic energy of 40 J is brought to rest by friction. The work done by friction was: *A. -40 J B. 0 J C. 40 J D. It cannot be determined.
If the force is opposite the direction of motion, it decreases the energy of the object.

144. Energy
A machine uses 480 J of chemical energy to do 120 J of work. The efficiency of the machine is: A. 4% B. 25% C. 120% D. 400%

145. Energy
A machine uses 480 J of chemical energy to do 120 J of work. The efficiency of the machine is: A. 4% *B. 25% C. 120% D. 400%

146. Energy
The 360 J of energy lost in the previous question was probably lost as _____________ energy. A. elastic potential B. gravitational potential C. heat D. kinetic

147. Energy
The 360 J of energy lost in the previous question was probably lost as _____________ energy. A. elastic potential B. gravitational potential *C. heat D. kinetic

148. Energy
A projectile is launched from ground level. At the highest point in its trajectory its total mechanical energy is ___________ its total mechanical energy at its launch position. A. less than B. equal to C. greater than D. It cannot be determined.

149. Energy
A projectile is launched from ground level. At the highest point in its trajectory its total mechanical energy is ___________ its total mechanical energy at its launch position. A. less than *B. equal to C. greater than D. It cannot be determined.
If there is no work being done on an object, its energy is not changed.

150. Electricity and Magnetism
The electrons in a DC circuit will flow: A. from the positive terminal to the negative terminal B. from the negative terminal to the positive terminal C. alternately A and B D. It cannot be determined.

151. Electricity and Magnetism
The electrons in a DC circuit will flow: A. from the positive terminal to the negative terminal *B. from the negative terminal to the positive terminal C. alternately A and B D. It cannot be determined.

152. Electricity and Magnetism
If the resistance of a circuit is increased, the current through the circuit will: A. increase B. decrease C. remain the same D. It cannot be determined.

153. Electricity and Magnetism
If the resistance of a circuit is increased, the current through the circuit will: A. increase *B. decrease C. remain the same D. It cannot be determined.

154. Electricity and Magnetism
Two 4 W resistors are placed in parallel. Their equivalent resistance is: A. 2 W B. 4 W C. 8 W D. 16 W

155. Electricity and Magnetism
Two 4 W resistors are placed in parallel. Their equivalent resistance is: *A. 2 W B. 4 W C. 8 W D. 16 W

156. Electricity and Magnetism
If the voltage supplied to a circuit is increased, the current through the circuit will: A. increase B. decrease C. remain the same D. It cannot be determined.

157. Electricity and Magnetism
If the voltage supplied to a circuit is increased, the current through the circuit will: *A. increase B. decrease C. remain the same D. It cannot be determined.

158. Electricity and Magnetism
If the voltage supplied to a circuit is increased, the power consumed by the load will: A. increase B. decrease C. remain the same D. It cannot be determined.

159. Electricity and Magnetism
If the voltage supplied to a circuit is increased, the power consumed by the load will: *A. increase B. decrease C. remain the same D. It cannot be determined.

160. Electricity and Magnetism
A bar magnet is moved inside a conducting coil and locked into place. Current will flow when: A. the magnet is moved into the coil B. the magnet is locked into place C. both A and B D. neither A nor B

161. Electricity and Magnetism
A bar magnet is moved inside a conducting coil and locked into place. Current will flow when: *A. the magnet is moved into the coil B. the magnet is locked into place C. both A and B D. neither A nor B

162. Electricity and Magnetism
A generator is a device that: A. turns mechanical energy into electrical energy B. turns electrical energy into mechanical energy C. alternately A and B D. neither A nor B

163. Electricity and Magnetism
A generator is a device that: *A. turns mechanical energy into electrical energy B. turns electrical energy into mechanical energy C. alternately A and B D. neither A nor B

164. Electricity and Magnetism
A transformer requires: A. AC B. DC C. both AC and DC D. neither AC nor DC

165. Electricity and Magnetism
A transformer requires: *A. AC B. DC C. both AC and DC D. neither AC nor DC

166. Electricity and Magnetism
The part of a DC motor that rotates due to magnetic forces is called the: A. armature B. brush C. commutator D. field magnet

167. Electricity and Magnetism
The part of a DC motor that rotates due to magnetic forces is called the: *A. armature B. brush C. commutator D. field magnet

168. Fluids
The order of substances from maximum to minimum compressibility is: A. air, water, steel B. steel, water, air C. water, air, steel D. air, steel, water

169. Fluids
The order of substances from maximum to minimum compressibility is: *A. air, water, steel B. steel, water, air C. water, air, steel D. air, steel, water

170. Fluids
Pneumatic systems will have a ___________ response time compared to that of hydraulic systems. A. faster B. slower C. similar

171. Fluids
Pneumatic systems will have a ___________ response time compared to that of hydraulic systems. A. faster *B. slower C. similar

172. Fluids
When you shift from standing on two feet to standing on one foot: A. the normal force increases and pressure remains the same B. the normal force decreases and pressure remains the same C. the normal force remains the same and pressure increases D. the normal force remains the same and pressure decreases

173. Fluids
When you shift from standing on two feet to standing on one foot: A. the normal force increases and pressure remains the same B. the normal force decreases and pressure remains the same *C. the normal force remains the same and pressure increases D. the normal force remains the same and pressure decreases

174. Fluids
A barometer is a device used to measure ___________ pressure. A. absolute B. atmospheric C. gauge D. all of the above

175. Fluids
A barometer is a device used to measure ___________ pressure. A. absolute *B. atmospheric C. gauge D. all of the above

176. Fluids
If the height of a column of fluid is increased, it will exert __________ pressure. A. more B. less C. the same

177. Fluids
If the height of a column of fluid is increased, it will exert __________ pressure. *A. more B. less C. the same

178. Fluids
In a hydraulic system with two pistons, piston A is half the diameter of piston B. The pressure on piston A is _________ the pressure on piston B. A. 1/4 B. 1/2 C. 2 times D. 4 times E. the same as

179. Fluids
In a hydraulic system with two pistons, piston A is half the diameter of piston B. The pressure on piston A is _________ the pressure on piston B. A. 1/4 B. 1/2 C. 2 times D. 4 times *E. the same as

180. Fluids
In the previous question, the force on piston A is _________ the force on piston B. A. 1/4 B. 1/2 C. 2 times D. 4 times E. the same as

181. Fluids
In the previous question, the force on piston A is _________ the force on piston B. *A. 1/4 B. 1/2 C. 2 times D. 4 times E. the same as

182. Fluids
Which of the following fluids would have the lowest viscosity? A. water B. syrup C. hand soap D. The viscosities are the same.

183. Fluids
Which of the following fluids would have the lowest viscosity? *A. water B. syrup C. hand soap D. The viscosities are the same.

184. Fluids
Flow in which the particles of the fluid move smoothly over each other is called __________ flow. A. eddy B. laminar C. turbulent D. viscous

185. Fluids
Flow in which the particles of the fluid move smoothly over each other is called __________ flow. A. eddy *B. laminar C. turbulent D. viscous

186. Fluids
If the speed of a fluid is increased, the pressure is: A. increased B. decreased C. unchanged D. It cannot be determined.

187. Fluids
If the speed of a fluid is increased, the pressure is: A. increased *B. decreased C. unchanged D. It cannot be determined.