Newton's Three Laws of Motion

Front

What is Newton's First Law of Motion?

Back

An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by an unbalanced force.

Front

What does it mean for an object to have a net force of zero?

Back

It means that all the forces acting on the object are balanced, resulting in no change in motion.

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Front

Give an example of Newton's First Law of Motion in everyday life.

Back

A book resting on a table will stay at rest until someone pushes it.

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

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Front

How does mass affect acceleration according to Newton's Second Law?

Back

As mass increases, acceleration decreases for a given force.

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Front

What is Newton's Third Law of Motion?

Back

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

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NGSS.MS-PS2-1

Front

Provide an example of Newton's Third Law of Motion.

Back

When you jump off a small boat, you push the boat backward as you move forward.

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Front

What are action and reaction force pairs?

Back

Forces that two objects exert on each other, equal in size and opposite in direction.

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Front

How do action and reaction forces relate to motion?

Back

They occur whether there is motion or not; they do not cancel each other out because they act on different objects.

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Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.