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1stYearEnergy

Energy

QuestionAnswer
Holding a hot water bottle involves the transfer of which energy type? Heat energy.
When you listen to music, what sort of energy is involved? Sound energy.
How does sound travel through the air? As waves of vibrating air molecules.
When you charge a phone what type of energy conversion occurs? Electrical energy to chemical energy.
Turning on a light involves which conversion of energy? Electrical energy to light energy.
Which sort of energy is released when eating breakfast? Chemical energy.
Energy that is stored is called what? Potential energy.
Where can potential energy be found? In any object raised from the ground, in a stretched spring or rubber band, in the drawn string of a bow, two planets orbiting a star and many other places!
Fuels are useful as they provide which type of energy? Chemical energy.
When fuels are burnt, what sort of energy change occurs? Chemical energy to heat energy.
When plucking a guitar string, which energy change occurs? Potential energy to sound energy.
What can be used to turn light energy in to electrical energy? A solar cell.
An electric motor supplies kinetic energy but also gives off which two other forms of energy? Heat and sound energy.
Can non-renewable fuel be replaced? No.
What are fossil fuels made from? The remains of dead animals or plants.
Can energy be destroyed? No.
Can energy be transferred from one form to another? Yes.
Is coal formed from dead animals or plants? Plants.
In a power station, what is the role of the dynamo? To change kinetic energy to electrical energy.
In a hydroelectric power plant, what sort of energy does water stored behind a damn have? Potential energy.
What is conduction? The transfer of heat through a solid.
What is the term used to describe heat being transferred through gases and liquids? Convection.
When a fluid is heated it e________. expands.
When the particles in a solid are heated they v________. vibrate.
A fluid becomes denser when it _______. cools.
Name two materials that are good heat insulators. Plastic and wood.
Metals let heat travel through them. Are they good or bad conductors of heat? Good.
What is the movement of water in response to heat called? A convection current.
All hot things give out i_______ r_______. Infrared radiation.
Why can infrared radiation travel through glass? Because glass is transparent.
When infrared radiation hits an object what can happen? The infrared radiation can be absorbed or reflected.
Which colour is best for reflecting heat? White.
Which colour is best for absorbing heat? Black.
Created by: DrLEC121
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