Energy Transformations

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What is energy transformation?

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Energy transformation is the process of changing energy from one form to another, such as from electrical energy to light energy.

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What type of energy transformation occurs in a lamp?

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Electrical energy is transformed into light energy.

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What is an example of energy transformation from electrical to mechanical to sound?

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A pencil sharpener plugged into an outlet transforms electrical energy into mechanical energy (motion) and then into sound energy.

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What is chemical energy?

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Chemical energy is the energy stored in the bonds between atoms in a substance.

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What energy transformation occurs when a candle burns?

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Chemical energy is transformed into light energy.

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What is an example of light energy transforming into chemical energy?

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A plant making its own food in sunlight is an example of light energy transforming into chemical energy.

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What type of energy is stored in batteries?

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Batteries store chemical energy.

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What happens to energy in a closed system?

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In a closed system, energy is conserved; it can change forms but cannot be created or destroyed.

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What is the role of sunlight in energy transformation for plants?

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Sunlight provides the energy needed for photosynthesis, where light energy is transformed into chemical energy.

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NGSS.MS-LS1-6

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What is an example of energy transformation in a digital bathroom scale?

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A digital bathroom scale transforms mechanical energy (weight) into electrical energy (digital display).