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Energy Quiz
| Question | Answer |
|---|---|
| What does "energy efficient" mean? | Using less energy, and doing the same as another item. |
| Name 3 ways to save energy. | Answers may vary but some include: Insulating the walls, and ceiling, use incandescent light bulbs, and change all appliances to energy efficient ones. |
| If a brick is sitting on a table, how much potential energy does it have? How much kinetic energy? | 100 J potential, 0 J kinetic. |
| When energy is transferred from object to object, did the energy keep the same form, the whole time? If not, why? | No, some of the energy is "lost" in the transfer to heat, sound, and light. |
| If you are biking on a hill, where would you have the most potential energy? Where would you have the most kinetic energy? | You would have the most potential energy on the very top on the hill. You would have the most kinetic energy right after the hill. |
| You hear someone say that "generators make energy". Is this true? | No, energy is never lost or created. Energy can change it's form, but never lost or destroyed. |
| What energy is called the "graveyard of kinetic energy"? Why? | Thermal energy because whenever kinetic energy is used, friction makes heat release thermal energy. |
| Why is the air close to the fridge warm? | The refrigerator lets out it's hot air, to the space around it. |
| What happens if an air conditioner is used in a house that is not well insulated and sealed? | The cold air would escape the house, because their would be nothing keeping it in. |
| Name 3 renewable energy sources. | Answers might include: biomass, geothermal, hydroelectric, solar, tidal and wind energy. |
| Name 2 nonrenewable energy sources. | Fossil fuels and nuclear energy. |
| Using reactivity, which combination of metals would be the best battery? | Two metals far away in reactivity, because the farther away, the more energy. Example: magnesium and copper. |
| What energy efficient features do you have, or could have? | Answers might include: better insulation, better windows, better heating and cooling equipment, better water heaters, and better lighting and appliances. |
| Potential energy | Energy that is stored, and has not been used. |
| Gravitational potential energy | When potential energy is due to an object's position above the earth. |
| Kinetic energy | When an object is moving. |
| Heat | Movement of thermal energy from hot to cold. |
| Temperature | The measure of the average energy per molecule of a substance. |
| Conduction | The process by which energy is transferred directly when materials touch. |
| Insulator | Materials the are poor conductors. |
| Renewable resource | One that has a continuing supply, such as sunlight, water, wind, and biomass. |
| Nonrenewable resource | One that has limited supply, such as coal, natural gas, and petroleum. |
| Electrolyte | A material capable of conducting electricity that allows current to flow as it is released from a reaction. |
Created by:
ifocht078
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