Energy Quiz

The Law of Conservation of Energy states:

• An object at rest tends to stay at rest, and an object in motion tends to stay in motion unless acted upon by an outside force.

• Energy can neither be created or destroyed, but it can change form.

• For every action there is an equal and opposite reaction.

• The force acting upon an object is equal to its mass times its acceleration; the greater the mass of an object, the more force is required to move it.

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Wyatt is looking at the following diagram.

Which description lists the objects and their type of potential energy correctly?

• Rock (gravitational), battery (chemical), slingshot (elastic), match (chemical)

• Rock (chemical), battery (chemical), slingshot (elastic), match (gravitational)

• Rock (gravitational), battery (chemical), slingshot (chemical), match (elastic)

• Rock (gravitational), battery (chemical), slingshot (elastic), match (gravitational)

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How can the gravitational potential energy of an object be increased?

• By soaking it in water

• By throwing it upwards

• By weighing it on a spring scale

• By raising it higher above the ground

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Which of these possesses the greatest kinetic energy?

• A bowl

• A rollercoaster

• A car

• A shoe

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What is an example of a transfer of energy?

• Turning on a plugged-in hair dryer

• Charing an iPad

• Plants producing oxygen by absorbing sunlight and water

• Cooking on an electrical stove

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At which point does the roller coaster have the greatest potential energy and why?

• W, because it is the highest point

• X, because it is the lowest point

• W, because it has the most kinetic energy

• Z, because it is moving the fastest

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What is energy?

• The ease with which a substance dissolves

• The texture of an object or substance

• The ability to perform work or change an object

• The ability to conduct heat or electricity

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Kinetic energy is:

• The energy of a moving object

• The energy stored in an object due to its position above Earth's surface.

• The ability to perform work or change an object.

• The energy stored in the position of the structure of an object.

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Which of these possesses the greatest elastic energy?

• A staple

• A pencil

• A ruler

• A rubber band

When energy changes back and forth between kinetic and potential energy, it is called

• A chemical reaction

• Kinetic energy

• Periodic motion

• Gravitation

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