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Power (7I)
Science 7
Question | Answer |
---|---|
alternative energy resources | Another name for renewable energy resources |
biomass | Any fuel that comes from plants, animals, or their wastes |
generator | Large coil of wire with a magnet inside. When the magnet is turned, electricity is produced in the coil of wire |
geothermal power | Making electricity using heat from hot rocks underground |
hydroelectric power | Making electricity by letting falling water turn turbines and generators |
nuclear energy | Energy stored inside the particles that things are made out of |
radiation | Dangerous particles and energy given off by uranium and other radioactive materials |
renewable energy resource | An energy resource that will never run out (solar power) |
solar cells | Flat plates that convert light energy into electrical energy |
solar panels | Flat plates that use the sun's energy to heat water |
turbine | The machine in a power station that is pushed round by water or steam and turns the generator |
uranium | A fuel used in nuclear power stations |
wind turbine | A kind of windmill that generates electricity using energy from the wind |
joule | The unit for measuring energy |
kilojoule | There are 1000 joule in 1 of these |
convection current | A flow of liquid or gas caused by part of it being heated or cooled more than the rest |
geothermal power | Making electricity using heat from hot rocks underground |
hydroelectric power | Making electricity by letting falling water turn turbines and generators |
nuclear power | Making electricity by using the nuclear energy stored inside uranium |
photosynthesis | Process that plants use to make their own food. It needs light to work. |
tidal power | Making electricity using the moving (kinetic) energy from the tides |