Energy and Energy Resources Review

What factors determine an object's kinetic energy?

• it's height and mass

• its mass and speed

• its size and weight

• its speed and height

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the gravitational potential energy store between an object and Earth depends on

• the object's height and weight

• the object's mass and speed

• the object's size and weight

• the object's speed and height

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When a ball is thrown upward, where does it have the least kinetic energy?

• at its highest point

• at its lowest point when it is moving downward

• at its lowest point when it is moving upward

• midway between its highest point and its lowest point

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What energy transformation occurs in the panels on this roof?

• chemical energy to thermal energy

• nuclear energy to electric energy

• radiant energy to electric energy

• sound energy to thermal energy

According to the law of conservation of energy, which is always true?

• Almost all energy on Earth comes from fossil fuels.

• Energy can never be created or destroyed.

• Nuclear energy is a renewable energy resource.

• Work is done when a force is exerted on an object.

What type of energy resource forms as the remains of dead marine organisms settle at the bottom of the ocean?

• biomass

• geothermal reservoirs

• petroleum

• uranium

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In which situation would the gravitational potential energy between you and Earth be greatest?

• you are running down a hill

• you are running up a hill

• you are standing at the bottom of a hill

• you stand on top of the hill

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Which produces the most air pollutants?

• burning coal

• burning natural gas

• hydroelectric power plants

• nuclear power plants

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Which is an example of a renewable energy resource?

• geothermal energy

• natural gas

• nuclear energy

• petroleum

Which best describes coal?

• it burns without polluting the air.

• It formed from the remains of plants

• it is a renewable energy resource

• It is the energy source used at nuclear power plants