The Concept of Energy

What is the definition of energy?

• The movement of energy

  from place to place or from one object to

  another.

• A change in energy

  from one form to another.

• The ability to do work and cause

  changes in matter.

• The flow of electric charges

  along a path.

What is the definition of energy transformation?

• The movement of energy

  from place to place or from one object to

  another.

• A change in energy

  from one form to another.

• The ability to do work and cause

  changes in matter.

• The flow of electric charges

  along a path.

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What is the definition of energy transfer?

• The movement of energy

  from place to place or from one object to

  another.

• A change in energy

  from one form to another.

• The ability to do work and cause

  changes in matter.

• The flow of electric charges

  along a path.

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What is the definition of electric current?

• The movement of energy

  from place to place or from one object to

  another.

• A change in energy

  from one form to another.

• The ability to do work and cause

  changes in matter.

• The flow of electric charges

  along a path.

Which of these shows energy?

• A car that has tires

• A car parked in a garage

• A car that begins to move

• A picture of a new car

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Which of these is a form of energy? Select all that apply.

• Heat

• Oven

• Electricity

• Light

• Lamp

If there is not a complete circuit between a battery and a lamp, what will be the result?

• The lamp will both turn on and turn off.

• The lamp will turn off, but it will not turn on.

• The wires will get very hot.

• The lamp will turn on, but it will not turn off.

Which of these devices does not change electrical energy into motion energy?

• Electric stove

• Clothes dryer

• Clock

• DVD Player

Which form of energy can be observed in all of these: a washing machine, a printer, and a radio? Choose the best answer.

• Sound

• Motion

• Chemical

• Heat

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A cell phone battery will last longest if the phone is mostly used to __________.

• watch movies

• play games

• use the Internet

• text or call