Which describes the First Law of Motion? There are TWO correct choices.

• F = ma

• For every action there is an equal and opposite reaction.

• An object in motion will remain in motion unless acted on by an unbalanced force.

• An object at rest will remain at rest unless acted on by an unbalanced force.

Which describes the Second Law of Motion?

• An object with more mass will require more force to accelerate.

• For every action there is an equal and opposite reaction.

• An object in motion will remain in motion unless acted on by an unbalanced force.

• An object at rest will remain at rest unless acted on by an unbalanced force.

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NGSS.MS-PS2-2

Which describes the Third Law of Motion?

• F = ma

• For every action there is an equal and opposite reaction.

• An object in motion will remain in motion unless acted on by an unbalanced force.

• An object at rest will remain at rest unless acted on by an unbalanced force.

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NGSS.MS-PS2-1

A rocket pushes burning gases down which causes the rocket to launch up. This is an example of which law?

• First Law of Motion

• Second Law of Motion

• Third Law of Motion

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NGSS.MS-PS2-1

It is much more difficult to move a dresser full of clothes than an empty dresser because the full dresser has more mass. This is an example of which law?

• First Law of Motion

• Second Law of Motion

• Third Law of Motion

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NGSS.MS-PS2-2

A book sitting on a table does not move. This is an example of which law?

• First Law of Motion

• Second Law of Motion

• Third Law of Motion

An object in motion stays in motion, and an object at rest stays at rest unless acted on by

• a balanced force.

• an unbalanced force.

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NGSS.MS-PS2-2

The tendency of an object to resist change in motion is known as

• gravity.

• force.

• inertia.

• acceleration.

How do seatbelts relate to the First Law of Motion?

• They are a balanced force that allows free movement.

• They do not relate to the First Law of Motion.

• They are an unbalanced force that helps to slow down or stop bodies from continued motion.

• They are an unbalanced force that allows free movement.

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NGSS.MS-PS2-2

You sit a coffee cup on top of the car. You forget the coffee cup and drive off. The coffee cup falls off the moving car and hits the ground. This is an example of which Law of Motion?

• First Law of Motion

• Second Law of Motion

• Third Law of Motion