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2
|
The strength and vitality required for sustained physical or mental activity.
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5
|
sources are renewable and are thought to be 'free' energy sources.
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6
|
energy from plants, it comes from the burning of trees
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7
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is the use of nuclear reactions that release nuclear energy to generate heat which most frequently is then used in steam turbines to produce electricity in a nuclear power plant.
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8
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any type of stored energy
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9
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Turn off devices when not used
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10
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is the sum of potential energy and kinetic energy
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11
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is energy stored in the bonds of chemical compounds (atoms and molecules).
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