Pop Quiz #2

Course

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The first three questions refer to the material you were to read in preparation for the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle. Questions 4 is your opportunity to suggest what we should emphasize today and how.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button at the bottom of this page.



1. State newton's second law.

2. What force is required to make a 2 kg object move with a constant speed of 30 m/s in a circle of radius 3 m?

3. How much torque is required to make a disk of mass 4 kg and radius 2 m rotate so that a lady bug on the outer edge travels at a constant speed of 20 m/s?

4. State the law of conservation of energy.

5. State the law of conservation of momentum.

6. A newton's third law pair of forces always act on_________ ___________.

7. What is the formula for rotational kinetic energy?

Define :

8. work.

9. Gravitational potential energy.

10. Spring potential energy.

11. power.

12. moment of inertia (rotational inertia) for a point mass that is a distance r from the pivot point.

13. linear momentum.

14. angular momentum.





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