Exam 6 Physics Numbers 11-15
5 Questions
| Total Attempts: 36
.
Questions and Answers
- 1.
In the figure, according to Kepler’s laws of planetary motion,- A.
A1 = A2.
- B.
Delta t1 > delta t2.
- C.
If delta t1 = delta t2, then the orbit is circular.
- D.
If delta t1 = delta t2, then A1 = A2.
- 2.
12. In the equation for the speed of an object in circular orbit, what does m represent in this equation?
- A.
The mass of the sun
- B.
The mass of Earth
- C.
The mass of the central object
- D.
The mass of the orbiting object
- 3.13. How would the speed of Earth’s orbit around the sun change if Earth’s mass increased by 4 times?
- A.
It would increase by a factor of 2.
- B.
It would increase by a factor of 4.
- C.
It would decrease by a factor of 2.
- D.
The speed would not change.
- 4.14. How would the speed of Earth’s orbit around the sun change if Earth’s distance from the sun increased by 4 times?
- A.
It would increase by a factor of 2.
- B.
It would increase by a factor of 4.
- C.
It would decrease by a factor of 2.
- D.
The speed would not change.
- 5.15. The law of planetary motion that relates the speed of a planet to its position in its orbit about the Sun is:
- A.
Kepler's first law
- B.
Kepler's third law
- C.
The Law of Equal Areas
- D.
The Law of Inertia
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