Science-Energy Review

Energy is the ability to________________________.

• change states of matter

• change a way of thinking

• move electrons through wire

• cause motion or change

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if two objects of different weights are moving at the same speed the lighter object has

• the same energy as the heavier object

• has less energy that the heavier object

• has more energy that the heavier object

• an unknown amount of energy

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When a moving object starts to slow down it energy of motion _________.

• increases

• stops completely

• decreases

• remains constant

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When two objects collide ___________________

• energy is created

• energy is destroyed

• energy is changed into a force

• energy is transferred

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Some of the energy transferred during a collision can produce___________________________

• heat

• light

• sound

• all of the above

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Energy can be transfer with moving objects ________________.

• when it is carried by sound

• when it is carried by light

• when it is carried by heat

• all of the above

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All sound start with a ____________________

• collision

• vibration

• push or a pull

• a moving object

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When an object gives off light it___________________.

• transfers energy

• gains energy

• loses energy

• makes a sound

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Electric current is the ______________________.

• flow of magnets

• flow of heat and sound

• flow of protons

• flow of electrons

To transfer energy carried by light to an electric current you need a __________________________.

• solar cell

• turbine

• generator

• battery

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