Quiz: Unit 4 Newton S Laws Hour

Physics First Name: Quiz: Unit 4 Newton’s Laws Hour: Date:

1. According to Newton’s 1st Law, which of the following are true? a. An object at rest will stay at rest. b. An object in motion will stay in motion. c. A moving object will continue in a straight line. d. All of the above

2. According to Newton’s 2nd Law, an object accelerates because: a. It has mass. b. It has volume. c. It has an unbalanced force. d. It has balanced forces.

3. According to Newton’s 3rd Law: a. Each force has an equal and opposite force that act on different objects b. Forces cancel each other because they are equal and opposite. c. There is no reaction force to gravity. d. Forces only exist when there is movement.

4. Pick out the Action/Reaction (A/R) pair for the picture. A man hits a baseball

a. Fp on bat by ball & Fp on bat by player b. Fp on bat by ball & Ft on ball by bat c. Fp on bat by ball & Fp on ball by bat d. Fp on bat by ball & Fp on player by bat

5. Action Reaction pairs: a. act on the same object. b. act on different objects. c. act in the same direction. d. are unequal in magnitude. 6. Identify a point of contact and draw the Action/Reaction force pair. A boy kicks a soccer ball.

7. Identify a point of contact and draw the Action/Reaction force pair. A crane lifts a load off of the ground.