FORMS OF ENERGY & ENERGY TRANSFORMATION

Which would be the most environmentally friendly way to supplement electricity?

• solar panels on a roof

• hydroelectric power from a pond

• a nuclear power plant

• using a diesel powered generator

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Which form of energy would most likely be affected by change in weather

• geothermal

• natural gas

• wind

• nuclear

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What type of by-products does nuclear energy produce? (a disadvantage)

• carbon dioxide

• radioactive waste

• sulfur dioxide

• nitrogen oxide

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What type of energy transformation occurs when using an electric pencil sharpener?

• electrical to mechanical

• sound to electrical

• mechanical to electrical

• potential to sound

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Which statement is true about the advantages and disadvantages of using different types of energy sources?

• wind power is an expensive, nonrenewable energy source

• solar power is a clean, renewable source of energy, but quite expensive

• nuclear power is very cost effective, nonrenewable, and leaves behind no radioactive waste

• coal is a safe and effective, renewable energy source

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A lamp begins with electrical energy when plugged in and turns into _________ energy when the light comes on.

• mechanical

• kinetic

• radiant

• sound

What type of energy transformation occurs when a hawk eats a mouse and then uses that energy to fly?

• chemical to mechanical

• mechanical to chemical

• thermal to mechanical

• mechanical to thermal

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What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?

• thermal to electrical

• mechanical to thermal

• electrical to thermal

• electrical to sound

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What type of energy transformation happens in hydro-electric power?

• kinetic to potential

• sound to mechanical

• chemical to electrical

• mechanical to electrical

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What is an advantage of producing electricity through hydropower?

• land is flooded when dams are built

• Hydropower is a clean, renewable source of energy for human use

• building dams destroys animal habitats

• building dams for hydropower uses up lots of land space