8th Grade Forces and Motion Quiz

A force that brings an object closer is a _________.

• Push
• Pull

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What type of force does this picture show?

• Push 
• Pull

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What do you call a change in an object's position?

• Force
• Motion
• Gravity
• Speed

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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Which would require the most force to move?

• a toy car
• a sleeping cat
• a science book
• a chair with a friend sitting in it

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Is gravity a push or a pull?

• push
• pull
• neither
• both

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_____ is the force that slows and stops motion between touching objects.

• Friction
• Gravity
• Pull
• Push

A _____ is a pull or a push.

• force
• friction
• gravity
• speed

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What causes objects to move?

• Balanced forces

• Unbalanced forces

• Zero Gravity

• Inertia

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A rocket's action is to push down on the ground with the force of its powerful engines. The reaction is that the ground pushes the rocket upwards with an equal force, but opposite in direction. Which law best explains this event?

• 1st Law - The Law of Inertia

• 2nd Law - The Law of Acceleration

• 3rd Law - The Law of Action/Reaction

• The Law of Gravity