Exploring Newton's First Law and Inertia

What does Newton's First Law state about an object at rest?

• It will start moving on its own.

• It will remain at rest unless acted upon by an external force.

• It will change direction.

• It will increase its speed.

According to Newton's First Law, what happens to an object in motion in space?

• It will move in a circular path.

• It will continue moving in a straight line at the same speed unless acted upon.

• It will stop immediately.

• It will change its speed randomly.

What is inertia?

• The speed of an object.

• The weight of an object.

• The resistance to a change in motion.

• The force that moves objects.

How is mass related to inertia?

• Mass is not related to inertia.

• Inertia is independent of mass.

• More mass means less inertia.

• More mass means more inertia.

What is the difference between mass and weight?

• Mass is the amount of matter, weight is the force of gravity on that matter.

• Mass is the force of gravity, weight is the amount of matter.

• Mass changes with location, weight does not.

• Mass and weight are the same.

What happens to acceleration when mass increases?

• Acceleration decreases.

• Acceleration increases.

• Acceleration becomes zero.

• Acceleration remains the same.

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NGSS.MS-PS2-2

Why is it easier to accelerate a sports car compared to a freight train?

• The sports car has more inertia.

• The freight train has less mass.

• The sports car has less mass and therefore less inertia.

• The freight train has more speed.

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NGSS.MS-PS2-2

What does the inverse proportionality between mass and acceleration imply?

• As mass increases, acceleration increases.

• Mass and acceleration are not related.

• As mass decreases, acceleration decreases.

• As mass increases, acceleration decreases.

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NGSS.MS-PS2-2

What would happen to a car moving at 60 mph if there were no friction and the engine was turned off?

• It would speed up.

• It would continue moving at 60 mph.

• It would stop immediately.

• It would slow down gradually.

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NGSS.MS-PS2-2

What is the acceleration of an object with a very small mass?

• Zero.

• Constant.

• Very small.

• Very large.

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NGSS.MS-PS2-2