Physics 1205 Reading Questions
Assignment #6

Chapter 6.7 - 6.13, 7.0 - 7.9

Reading Questions should be submitted electronically using this form. They are due by 8:30 a.m. on Wednesday, October 8, 2008.
Any Reading Questions arriving late will receive no credit.
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Answer the Reading Questions below. Please answer each question.

1. Define the eccentricity of an orbit. Since the earth's orbit has an eccentricity of 0.0167 what would its shape look like if it were drawn on a blackboard?

2. According to Kepler's laws, when a planet is nearest the sun in its orbit, it will move

slower than
the same as
faster than

when it is farthest from the sun.

3. How did Newton's gravitational law shed light on Kepler's laws?

4. What is meant by a gravitational field?

5. What is the significance of the negative sign in Hooke's Law?

6. If an object's motion is described by simple harmonic motion (SHM), at what point in its motion is the acceleration of the object the greatest? At what point in the object's motion is it moving fastest?

7. Does an ideal spring hanging vertically connected to a massive object oscillate with simple harmonic motion with the same frequency as the same spring and object oscillating horizontally on a frictionless surface?

Yes
No
Unknown

8. What requirement is necessary of a force if it is to produce SHM on an object?

9. What requirement is necessary for a simle pendulum to execute SHM?

10. What is resonance?

Final Question: (This question must be answered to receive any credit). What is one thing from the reading that you didn't understand or need clarified?

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