True and False Newton's Laws

How could you tell if a moving object is receiving an unbalanced force?

• It might speed up.

• It might slow down.

• It might change direction.

• It could do any of these things.

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NGSS.MS-PS2-2

NGSS.MS-PS2-5

An object is resting on a table, not moving. The table is exerting an upward force on the object.

• True

• False

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NGSS.3-PS2-1

What is inertia?

• the force that opposes motion

• the force of attraction between 2 objects

• an object's tendency to stay in motion or to stay at rest

• a change in an object's speed and/or direction

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NGSS.HS-PS2-1

What equation is used to describe Newton's second law.

• Force = mass x acceleration.

• Speed = distance ÷ time

• Volume = height x width x length

• A² + B² = C²

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NGSS.MS-PS2-2

An object at rest will remain at rest unless acted upon by an outside force is Newton's ______________.

• First law

• Second Law

• Third Law

As the mass of an object increases so does the force needed to move it.

• True

• False

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NGSS.MS-PS2-2

Newton's third law states that...

• An object at rest will remain at rest unless acted upon by an outside force.

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

• The greater the mass of an object the more force will be needed to move it.

Tags

NGSS.MS-PS2-1

Which of the following statements is true according to Newton's first law of motion?

• An object in motion will stay in motion unless acted upon by an external force.

• An object will accelerate if a net force is applied.

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

• The force of gravity acts on all objects.

According to Newton's second law, what happens to an object when a net force is applied?

• It remains at rest.

• It accelerates in the direction of the force.

• It moves in a circular path.

• It decreases in mass.

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NGSS.MS-PS2-2

Newton's third law of motion is often summarized as:

• An object at rest stays at rest.

• Force equals mass times acceleration.

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

• Energy cannot be created or destroyed.

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NGSS.MS-PS2-1