Page 39 - Science Course 2 (Book 2)

Mo8-L4: Lesson Review Quiz (True / False)

Direction: On the line before each statement, write T if the statement is true or F if the statement is false

1. Force pairs act in opposite directions and are the same strength.
2. An object’s momentum is the product of its mass and acceleration.

3. In a force pair, one force is the action force and the other force is the second force.
4. According to Newton’s third law, when an object applies a force on a second object, the
second object applies a weaker reaction force in response.

Mo8-L4: Lesson Review Quiz (Multiple Choice)

Direction: On the line before each question or statement, write the letter of the correct answer.

5. Which type of collision occurs when a baseball bat hits a baseball?
A. elastic
B. inelastic
C. accelerated

6. The law of conservation of momentum states that the total momentum of a group of objects
A. increases after a collision.
B. decreases after a collision.
C. remains the same after a collision.
7. When a gymnast performs, which force is most important in determining how high he or she
jumps?
A. the downward force of gravity
B. the friction exerted by the ground
C. the action force that the gymnast exerts on the ground

8. Which term is a force that can slow momentum?
A. mass
B. inertia
C. friction

Direction: Respond to each statement on the lines provided.

5. Contrast an elastic collision with an inelastic collision.

6. State the law of conservation of momentum in your own words.

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