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Physics Test Review
Test Description: Use this review of Motion and Forces, Newton's Laws, Simple Machines, and Energy to prepare for your Physics Test
Instructions: Answer all questions to get your test result.
1) A ball on a cart is moving at a rate of 2 m/s. The cart suddenly stops and the ball continues to travel in the same direction at the same speed. This is an example of the
A
law of gravity
B
first law of motion
C
second law of motion
D
third law of motion
2) The rate of acceleration of an object is determined by the mass of the object and
A
the change in kinetic energy of the object
B
the forces acting on the object
C
the initial velocity of the object
3) A car is traveling on a highway at a constant velocity. Which statement BEST describes the forces acting on the car?
A
The forces acting on the car are continuing to increase
B
The forces acting on the car are in the same direction
C
The forces acting on the car are equal to the force of gravity
D
The forces acting on the car are balanced
4) When a speeding meteor enters Earth’s atmosphere, it slows down and becomes very hot due to friction. Which factor MOST influences the amount of friction that a meteor encounters when it enters the atmosphere?
A
solar energy
B
air resistance
C
magnetism
D
the weather
5) Which is MOST likely needed when describing the change in position of an object?
A
constant rate
B
direction change
C
reference point
D
initial speed
6) Two people are pushing a car. One person is pushing with a force of 450 N and the other person is pushing with a force of 300 N. What information is needed to determine the net force applied to the car by the people?
A
the direction of the forces
B
the weight of the automobile
C
the direction of the road
D
the weight of the two people
7) When astronauts walked on the Moon, they used weighted boots to help them walk due to the lower gravitational pull. What difference between Earth and the Moon accounts for the difference in gravity?
A
mass
B
diameter
C
density
D
volume
8) What is the amount of force required to accelerate a 20 kg object to 4 m/s²?
A
80 N
B
24 N
C
16 N
D
5 N
9) When riding a roller coaster, an electric motor pulls the roller coaster to the top of the first hill. What force pulls the roller coaster down the hill?
A
speed
B
gravity
C
mass
D
friction
10) Alice lifted 2 bricks a height of 4 meters (m) each. Each brick weighed 110 newtons (N). What was the total amount of work for Alice to move the bricks?
A
440 joules
B
55 joules
C
550 joules
D
880 joules
11) A teacher was discussing with the class that a bowling ball has more inertia than a basketball. Which physical property is MOST likely being compared?
A
mass
B
volume
C
buoyancy
D
area
12) Isaac Newton discovered the three laws of motion. Which example BEST illustrates Newton’s third law of motion, which describes action and reaction forces?
A
a heavier ball falls at the same speed as a lighter ball
B
a rocket takes off from the ground
C
a vehicle rounds a curve and changes its acceleration
D
a book slides forward on a seat when the car stops
13) When a button is pushed on a battery-operated clock, the time display is illuminated. What process has taken place?
A
closing an electric circuit has produced light
B
opening an electric circuit has produced light
C
pressure has been converted to light
D
force has been converted to light
14) Some plant cells need energy to carry nutrients across the cell membrane. Which type of energy transformation does these plant cells use to bring the nutrient molecule inside the cell membrane?
A
chemical energy to kinetic energy
B
potential energy to light energy
C
kinetic energy to potential energy
D
thermal energy to kinetic energy
15) The sound made by crickets occurs when the male crickets rubs its two hind legs together. Which type of energy transformation results in the sound made by crickets?
A
thermal energy to chemical energy
B
mechanical energy to sound energy
C
mechanical energy to chemical energy
D
sound energy to thermal energy
16) In a gasoline-powered car, chemical energy from gasoline is transformed to make the car move. The motion of the car is what form of energy?
A
electrical energy
B
nuclear energy
C
radiant energy
D
mechanical energy
17) Which simple machine increases the distance over which a load travels and reduces the needed force?
A
inclined plane
B
pulley
C
wedge
D
wheel and axle
*select an answer for all questions
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