1. Chapter 12 review
Problems to try

2. Newton’s First Law
Law of Inertia: An object at ______stays at _____, an object in motion will remain in motion at a constant velocity UNLESS…..

3. Newton’s Third Law
For every ____________ there is an ________________ and ____________ _____________

4. Electric Forces
Act between ____________ objects or particles and can attract and repel.

5. Forces that hold the___________ of the ____________ together
Nuclear Forces
Forces that hold the___________ of the ____________ together

6. Gravity
All objects ___________ each other by the force of gravity
Universal law:

7. Projectile Motion
_____________ velocity ______________ (throw) PLUS the pull of ________________ creating a ____________ line.

8. A 85 kg soccer player collides with a 75 kg soccer player
A 85 kg soccer player collides with a 75 kg soccer player. The heavier soccer player is thrown back 2 meters. How is this possible?

9. A 100 kg full back is running at a velocity of 3. 8 m/sec
A 100 kg full back is running at a velocity of 3.8 m/sec. An 85 kg defensive back is running at a velocity of 4 m/sec. If the two players collide, which will get thrown back? Show your work.

10. What would the acceleration be for a 7 kg object when a 20 N force is applied to it?

11. A 70 kg skater pushed by a friend accelerates 8 m/sec/sec
A 70 kg skater pushed by a friend accelerates 8 m/sec/sec. How much force did the friend apply?