Page 18 - Science Course 2 (Book 2)

Mo8-L1: Lesson Review Quiz (True of False)

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

1. Gravity and magnetism are examples of contact forces.
2. Weight is the measure of gravitational force on an object.
3. Mass and weight are not related to each other.
4. Forces have strength and direction.

Mo8-L1: Lesson Review Quiz (Multiple Choice)

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

5. You can reduce friction by
A. increasing mass.
B. removing lubricant.
C. reducing surface area.
6. Which type of friction exists between a surface and moving air?
A. f uid friction
B. static friction
C. sliding friction
7. Which factor is NOT involved in determining gravitational force?
A. mass
B. speed
C. distance
8. A is NOT a force.
A. fall
B. pull
C. push

Direction: Respond to each statement on the lines provided.

9. State two ways to reduce friction on an object.

10. Recall the three types of friction and explain how each acts on objects.

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