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1
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The friction caused by rubbing hands together creates __________ energy.
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2
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A remote control car uses __________ energy from the battery to power it.
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4
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How high or low a sound is
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6
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The ____________ is the biggest source of light energy.
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9
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A hairdryer plugged into the wall uses _________ energy.
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12
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When a light is shined through a small hole, the light that does not pass through gets ________.
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13
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Sound energy is made when sound waves __________.
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14
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The higher an object's ___________ the more potential energy it has.
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17
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Heat causes objects to move __________.
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18
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Fire gives off light and ________ energy.
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