Exam 5: Gravity and Motion

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The radius of the Moon is one-fourth that of the Earth,and its mass is 1.3 percent of the Earth's mass.If you were standing on the surface of the Moon,what would your weight be?

(Multiple Choice)

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Question 21

Suppose there is a planetary system in which a planet with an average distance of 3 AU from the star has an orbital period of 3 years.What is the mass of the star?

(Multiple Choice)

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Question 22

Suppose an object moves in a circular path at constant speed.What can be said about the force acting on it?

(Multiple Choice)

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Question 23

The tidal variations are largest during the _____________.

(Multiple Choice)

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Question 24

The tides are the smallest during what lunar phase?

(Multiple Choice)

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Question 25

If the masses of the Sun and Earth each were doubled,the force of gravity between them would

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Question 26

How will an object move if there are no forces acting on it?

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Question 27

For an object to accelerate it must change its

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Question 28

What is centripetal force?

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Question 29

What is always true when an object accelerates?

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Question 30

Suppose the Moon's mass were 4 times as large and it were twice as far from the Earth? How would these changes affect the force of gravity between the earth and the Moon?

(Multiple Choice)

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Question 31

Which of the following bodies is accelerating?

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Question 32

The force of gravity between two objects has what dependence on the distance between the objects?

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Question 33

Showing 21 - 33 of 33

The radius of the Moon is one-fourth that of the Earth,and its mass is 1.3 percent of the Earth's mass.If you were standing on the surface of the Moon,what would your weight be?

Suppose there is a planetary system in which a planet with an average distance of 3 AU from the star has an orbital period of 3 years.What is the mass of the star?

Suppose an object moves in a circular path at constant speed.What can be said about the force acting on it?

The tidal variations are largest during the _____________.

The tides are the smallest during what lunar phase?

If the masses of the Sun and Earth each were doubled,the force of gravity between them would

How will an object move if there are no forces acting on it?

For an object to accelerate it must change its

What is centripetal force?

What is always true when an object accelerates?

Suppose the Moon's mass were 4 times as large and it were twice as far from the Earth? How would these changes affect the force of gravity between the earth and the Moon?

Which of the following bodies is accelerating?

The force of gravity between two objects has what dependence on the distance between the objects?

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