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Science Y7 ER
Revision of Energy Resources
| Question | Answer |
|---|---|
| List the 4 stages of a power station. | 1)Water turns into gas 2)Spins the Turbine 3)Generator to be stored 4)Used by people |
| What fuel is used to make nuclear energy? | Uranium |
| Solar Power: | Mirrors are reflected onto a big container of waer.Gas will turn the turbine to make electricity. |
| Hydroelectric Power Stations: | Storing water high up n resovoirs and then letting the water go this causes kinetic energy which turns turbines. |
| Wind Turbines: | The wind blows the turbine around. |
| Geothermal Energy: | Water is piped down into the ground where it is hot this then turns into steam which comes up and turns a turbine. |
| Firewood (biomass energy): | Burning trees for a fuel which boils water which turns the turbine.But you must keep planting trees. |
| The Sun's energy causes 6 things these are: | Coal oil gas,Wood,Food,Wind Power,Wave Power,Batteries |
| Name the 3 fossil fuels | Oil Gas Coal |
| Fossil fuels are renewable/non-renewable? | Non renewable |
| How is coal formed? | By plants and animals dieing millions og years ago and rotting beneath the soil they turned into coal. |
| How is oil and gas formed? | Millions of years ago animals and plants in the sea died and got buried beneath the sand they turned into oil or gas. |
| Give 3 advantages of fossil fuels | 1)Available easily 2)Eadily converted to Energy 3)Inexpensive |
| Give 3 disadvantages of fossil fuels | 1)Causes air pollution 2)Running out 3)Fire Hazard |
| What are the eight forms of energy? | Light,kinetic,gravitational potential,sound,electrical,chemical,heat,elastic |
| What is light energy? | Anything that is luminous and gives off light energy |
| What is kinetic energy? | Kinetic energy is the energy used for movement |
| What is gravitational potential energy? | Energy that if it falls above the ground. |
| What is sound energy? | A vibrating object caused sound energy. |
| What is electrical energy? | Where electrical currents flow. |
| What is chemical energy? | Batteries,fuels and foods have chemical energy when they have a reaction |
| What is Heat Energy? | Above 0 everything has heat energy |
| What is elastic energy? | When anything is stretched it has elastic energy? |
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