Nine Weeks Review

What is a force?

• a push or pull
• speed or acceleration 
• potential or kinetic energy
• balanced or unbalanced force

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When objects remain in the same place, it is called...

• gravity
• friction
• balanced force
• unbalanced force

What is the force that causes everything to be pulled down to the Earth?

• friction
• gravity
• balanced
• unbalanced

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Force is measured in....

• Galileos 
• Newtons
• Di Vincis
• Einsteins 

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An unbalanced force is when objects move in one direction because the force is greater from that direction.

• true
• false

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Inertia is....

• for every action, there is an equal and opposite reaction
• larger objects take more force to move 
• an object in motion tends to stay in motion unless acted on by an opposite force
• a push that acts in the opposite direction and it slows down.

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What is a force that works AGAINST MOTION?

• Force
• Motion
• Gravity
• Friction

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Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

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If you push a tennis ball, a bowling ball, and a basketball with the same amount of force, which one will go farthest?

• bowling ball

• tennis ball

• basketball

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It is much more difficult to move a dresser full of clothes than an empty dresser. Why?

• An object in motion stays in motion.

• It takes more force to move an object with more mass.

• It takes more friction to move the empty dresser.

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