Energy Transformation Review

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?

• chemical → light → electrical
• mechanical → sound → light
• thermal → solar → electrical
• electrical → thermal → light

What type of energy is created using this?

• chemical

• electrical

• mechanical

Tags

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NGSS.MS-PS3-1

Batteries have _________ energy.

• mechanical

• thermal

• chemical

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The sun gives off __________ energy.

• mechanical

• electrical

• radiant

A stretched rubber band has what type of energy?

• potential

• kinetic

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The law of conservation of energy says that energy cannot be created or destroyed.

• False

• True

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________ energy is also called heat energy.

• electrical

• mechanical

• thermal

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Electrical devices have been designed to convert electrical energy to other useful forms of energy. Choose the device which converts electrical energy to kinetic energy.

• Picture A

• Picture B

• Picture C

• Picture D

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Plants prepare their food by the process of photosynthesis with the help of sunlight. Choose the correct energy transformation that occurs in this process.

• Chemical energy is converted to sound energy

• Light energy is converted to kinetic energy

• Sound energy is converted to potential energy

• Light energy is converted to chemical energy

Tags

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Which one of these devices converts light energy into electrical energy?

• Picture A

• Picture B

• Picture C

• Picture D