NGSS.MS-PS2-1

A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?

• For every action there is an equal and opposite reaction.
• Every mass exerts a force on every other mass.
• An object at rest tends to stay at rest.
• Friction opposes the motion of an object.

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NGSS.MS-PS2-1

A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?

• For every action there is an equal and opposite reaction.
• Every mass exerts a force on every other mass.
• An object at rest tends to stay at rest.
• Friction opposes the motion of an object.

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NGSS.MS-PS2-1

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

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NGSS.MS-PS2-1

A Newton is a unit of...

• force
• inertia
• acceleration
• velocity

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NGSS.MS-PS2-1

A vehicle designed to propel itself by ejecting exhaust gas from one end

• shuttle

• rocket

• satellite

• probe

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NGSS.MS-PS2-1

Newton's Third Law is also known as...

• The Law of Inertia

• The Law of Acceleration

• The Law of Conservation of Momentum (Force Pairs)

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NGSS.MS-PS2-1

When a student runs and kicks a ball, they have applied an ___________ force to move the ball.

• Balanced

• Magnetic

• Spring

• Unbalanced

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NGSS.MS-PS2-1

Newton's third law states that any action will have a(n) _______ and ______ reaction

• Equal and similar

• Equal and opposite

• Equal and different

• Greater and opposite

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NGSS.MS-PS2-1

In the game of pool (billiards), both balls experience the same amount of force but in opposite directions

• true

• false

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NGSS.MS-PS2-1

Newton's third law states for every action, there is an _____________ reaction.

• opposite and equal

• opposite and unequal

• unbalanced

• severe

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NGSS.MS-PS2-1