Kinetic Energy and Motion

A ____________ is a push or a pull on an object.

• friction

• force

• magnet

• gravity

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If a force causes an object to move, it's considered a(n) __________________ force.

• Balanced

• Unbalanced

• Massive

• Strong

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Which factor most directly affects an object's kinetic energy?

• a. Color of the object

• b. Shape of the object

• c. Mass and speed of the object

• d. Material of the object

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How is kinetic energy calculated?

• KE=1/2mv^2

• KE=ma

• KE=1/2mv

• KE=m^2v

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A small ball and a large ball are both rolling down a hill at the same speed. The small ball has a mass of 11 kg, while the large ball has a mass of 55 kg. Which statement is true regarding their kinetic energy?

• The small ball has more kinetic energy than the large ball.

• The small ball and the large ball have the same kinetic energy.

• The large ball has more kinetic energy than the small ball.

• The kinetic energy of both balls cannot be determined without knowing the speed.

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Which graph would best represent the relationship between kinetic energy and the mass of an object?

• 
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• 
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If two objects of different masses collide, which statement is true about their motion post-collision according to Newton's Third Law?

• a. Only the lighter object moves.

• b. Only the heavier object moves.

• c. Both objects exert the same force on each other.

• d. Both objects come to a complete stop.

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How do you calculate velocity?

• a. mass / distance = velocity

• b. mass / time = velocity

• c. time / height = velocity

• d. distance / time = velocity

The energy of MOTION is called _______ energy.

• thermal

• kinetic

• potenial

• motion

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The particles in the images are undergoing a change in energy. Which statement best describes what is happening?

• The kinetic energy of the particles on the right is the greatest of the three types of particles.

• The particles in the middle have more kinetic energy than the particles on the right.

• The particles in the middle have less space between them than the particles on the left.

• Energy was added to the particles on the left, so the particles in the middle have more energy.

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