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Energy
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Which source of energy produce less carbon dioxide that some non renewable sources?
Biofuel
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What types of energy does a wind turbine have?
Kinetic and electrical
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What types of energy does a light bulb have?
Electrical and light
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A fuel that people burn at home to heat water or cook food
Natural gas
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Name three problems of using too much energy
Global warming, acid rain and pollution
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Which are the non- visible form of lights?
Ultraviolet and infrared lights
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A radioactive material that is used to generate electricity
Uranium
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Which is the problem with the solar and wind energy?
That they are unreliable sources
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Give an example of what to carry out the Three Rs (one example for each R)
Free answer
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Mechanical energy divides into...
Potencial and kinetic energy
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A solid fuel that people use for heating or to generate electricity
Coal
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What types of energy does a car have?
Chemical and kinetic
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Give an example of a endothermic reaction
Photosynthesis
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Name five renewable sources
Solar, wind, hydroelectric, geothermal and biofuels
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Name four non- renewable sources
Coal, petroleum, natural gas, nuclear
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What happen when the light passes through a transparent material?
That it's refracted
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Which are the Three Rs?
Reduce, reuse and recycle
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Give an example of exothermic reaction
Combustion
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What types of energy does a iron have?
Electrical and thermal
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What types of energy does a radio have?
Electrical and sound
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