5.2/5.3 Force & Energy

What is energy?

• The ability to do work or cause change

• A type of force that opposes motion

• A measure of how fast an object moves

• The speed at which an object falls

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Which of the following is NOT a form of energy?

• Mechanical

• Radiant

• Thermal

• Friction

How can energy be transferred?

• By moving objects or through light

• It cannot be transferred

• Only in the form of heat

• Through sound only

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What does kinetic energy refer to?

• Energy of motion

• Energy that opposes motion

• Energy of position

• Energy stored in bonds of atoms

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What happens to energy when objects collide?

• It is destroyed

• It disappears

• It is transferred and can change objects' motion

• It turns into mass

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What is friction?

• A force that opposes motion

• A force that promotes motion

• A way to increase energy

• A type of kinetic energy

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What does the net force on an object determine?

• Its color

• Its temperature

• Its ability to conduct electricity

• Changes in its speed or direction of motion

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What is true about energy transformation?

• Energy transformation is irreversible

• Energy can change forms but is conserved

• Energy is destroyed when it changes form

• Energy can be created during transformation

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What describes the motion of an object?

• Its color and texture

• Its weight and height

• Its direction and speed

• Its age and condition

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What effect does mass have on the motion of an object when a force is applied?

• The more massive, the faster it moves

• Only light objects can move

• The more massive, the less effect a given force will have

• Mass has no effect on motion

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