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What Is a Force? Chapter 1 Section 2 Review. 1. What is a newton ?  A. A moving object  B. A point of reference  C. The SI unit for force  D. A push.

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Presentation on theme: "What Is a Force? Chapter 1 Section 2 Review. 1. What is a newton ?  A. A moving object  B. A point of reference  C. The SI unit for force  D. A push."— Presentation transcript:

1 What Is a Force? Chapter 1 Section 2 Review

2 1. What is a newton ?  A. A moving object  B. A point of reference  C. The SI unit for force  D. A push or pull

3 A newton is… C. The SI unit for force

4 2. Force is…  A. A great deal of weight  B. A push or pull exerted on an object in order to change the object’s motion  C. A change in position relative to a reference point  D. The speed of an object in a certain direction

5 A force is…  B. A push or pull exerted on an object in order to change the object’s motion

6 3. What is net force?  A. A blocker in volleyball  B. A push or pull  C. The speed of an object in a certain direction  D. The combination of all forces acting on an object

7 Net force is…  D. The combination of all forces acting on an object

8 4. Are the forces on a kicked football balanced or unbalanced? Why?  A. Balanced, since the football is moving  B. Unbalanced, since the football is moving  C. Balanced, since the football is still  D. Unbalanced, since the football is still

9 The forces on a kicked football are…  B. Unbalanced, since the football is moving

10 5. Which of the following choices best represents force?  A. A push or pull which never causes motion  B. A push or pull always causing acceleration  C. A push or pull acting without an object  D. A push or pull acting on an object

11 Force is represented by…  D. A push or pull acting on an object

12 6. A boy pulls a wagon with a force of 8 N West as another boy pushes it with a force of 6 N West. What is the net force?  A. 14 N East  B. 2 N West  C. 2 N East  D. 14 N West

13 8 N West + 6 N West =  D. 14 N West

14 7. Which of the following best determines net force when more than one force is acting on an object?  A. A combination of all motions of an object  B. A combination of all motions of an object in 2 directions  C. A combination of all forces acting on an object  D. A combination of forces acting on an object in 2 directions

15 Net force is best determined when…  C. A combination of all forces is acting on an object

16 8. Which of the following may happen when an object receives unbalanced forces?  A. The object changes direction  B. The object changes speed  C. The object starts to move  D. All of the above

17 When an object receives unbalanced forces, it moves, so…  D. All of the above

18 9. When the net forces equal 0 N, they are which of the following?  A. Balanced  B. Unbalanced  C. A push  D. A pull

19 When net forces equal 0 N, they are…  A. Balanced

20 10. What is an example of an unbalanced force causing a change in motion?  A. Pulling on a drawer so it opens  B. Pushing a chair across the floor  C. Pedaling a bicycle  D. All of the above

21

22 11. Which of the following always causes a change in speed, direction, or both?  A. Balanced forces  B. Unbalanced forces  C. Either balanced or unbalanced forces  D. Any combination of forces

23  B. Unbalanced forces

24 12. What is an example of an object that has balanced forces acting on it?  A. A car going down the street  B. A book resting on a table  C. A kid riding a bike  D. A windmill turning

25  B. A book resting on a table

26 13. Which of the following causes an object to start moving?  A. Balanced forces  B. Unbalanced forces  C. Either balanced or unbalanced forces  D. Any combination of forces

27  B. Unbalanced forces

28 14. One Newton is the equivalent of…  A. About 100 grams  B. 1 pound  C. 1 apple  D. 10 grams

29 1 Newton is equal to…  A. About 100 grams

30 15. When 2 forces act in opposite directions, you ______ the smaller force from the larger force to determine the net force.  A. Add  B. Subtract  C. Multiply  D. Divide

31  B. Subtract

32  The quiz is on Tuesday!  Make sure you are prepared!  Study, study, study!!!  You can find this review on the Frost website under Science Homework!


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