Electric Power

The electricity in our house is

• AC

• AD

• BC

• DC

What is an Alternating Current?

• An electric current that never changes direction.

• An electric current that changes direction many times.

• An electric current that has no frequency.

• A current that has no electrical properties.

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What is the difference between the movement of the two electrons between the two types of currents?

• There's no difference.

• An Alternating Currents electrons move in one direction while a Direct Currents electrons move back and forth.

• An Alternating Currents electrons move back and forth while a Direct Currents electrons move in one direction.

• An Alternating Currents electrons move back and forth while a Direct Currents electrons don't move at all.

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What is a type of electric current that reverses direction periodically over time?

• Direct currents

• Alternating currents

What type of current more efficiently provides energy further distances?

• Alternating currents

• Direct currents

• Pulsating currents

• variable currents

Which of these answer choices below is an example of how a Direct Current obtains its energy?

• Lights

• Television

• Computer

• Battery

What causes the movement of electrons in a Direct Current?

• Pulsed electrons on a wire.

• The alternating push of electrons along the wire.

• The steady pull of electrons along the wire.

What is a Direct Current?

• An electrical current flowing in many directions.

• A current with a high frequency.

• An electric current flowing in one direction only.

• A current that is never a straight line.

What is the difference in frequency between the two currents?

• An Alternating Current has a frequency of 0hz, and a Direct Current usually has a frequency of 60hz.

• They both have a frequency of 60hz.

• An Alternating Current usually has a frequency of 60hz, and a Direct Current normally has a higher frequency.

• An Alternating Current usually has a frequency of 60hz, and a Direct Current has a frequency of 0hz.

What type of electricity is used in our houses?

• Direct Currents

• Alternating Currents