Question 1

Examine the figure below.If the woman pushes with a force of 200 N,what is the acceleration of the container?

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Question 2

Explain the difference between being weightless and being in free fall.

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Question 3

What acceleration would result from a 5-N force acting on a 3-kg object? (A Newton [N] has units of kg m/s².)

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Question 4

What information would you need to obtain about one of the moons of the planet Jupiter in order to measure the mass of Jupiter?

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Question 5

Examine the figure below.If the acceleration of the container is 2 m/s²,with what force did the woman push?

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Question 6

Astronauts feel "weightless" on the Moon.Using Newton's universal law of gravitation,explain why this statement is true or false and why astronauts experience this feeling.

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Question 7

If a 100-kg asteroid collides with Earth,causing the asteroid to decelerate in one second from 1,000 m/s to 0 m/s,what acceleration will Earth experience according to Newton's third law? (Earth has a mass of approximately 6 × 10²⁴ kg.)

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Question 8

The figure below shows Newton's cannonball thought experiment.At the three locations of the cannonball shown,draw and label arrows representing the circular velocity and acceleration.

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Question 9

How much stronger is the gravitational force of the Sun on the Earth compared to the gravitational force of the Sun on Pluto? Note that Pluto's semimajor axis is 40 AU and its mass is 0.002 times the mass of the Earth.

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Question 10

Is there a difference in your weight between when you are on top of a mountain at 1,000 m above sea level compared to when you are sitting in a classroom at 10 m above sea level?

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Quiz 3: Laws of Motion