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Energy notes review
for quiz
| Question | Answer |
|---|---|
| energy | the ability to do work |
| work | when a force causes an object to move in a particular direction |
| kinetic energy | the energy of motion |
| what kinetic energy depends on | mass and speed |
| potential energy | the energy an object has because of its position |
| the amount of gravitational potential energy | weight and height |
| mechanical energy | the total energy of motion and position of an object |
| thermal energy | the amount of heat caused by the motion of atoms in a substance |
| chemical energy | the energy stored within the bonds between atoms |
| nuclear energy | the energy that is stored in the nucleus of an atom |
| electrical energy | the energy of moving electrons |
| sound energy | energy caused by vibrating particles |
| light energy | a form of energy that travels as an electromagnetic wave |
| how light is produced | the vibration of electrically charged particles |
| energy conversions | a change from one form of energy to another |
| the law of conservation of energy | energy cannot be created or destroyed but can be changed in form |
| waste heat | converting chemical energy from gas into mechanical energy |
| renewable energy | sources of nature that can naturally replenish themselves on a human timescale |
| examples of renewable energy | wind energy, hydropower energy, etc |
| examples of non-renewable energy | fossil fuel energy, coal, etc |
| photovoltaic cell | a device that converts solar energy to electrical energy |
| where are photovoltaic cells used | solar panels and some calculators |
| solar energy | energy from the sun |
| hydroelectric power | the electric produced by flowing water |
| wind energy | moving air caused by solar energy |
| biomass fuels | fuels made from living things |
| geothermal energy | heat that is drilled from inside earth |
| hydrogen power | energy made from using hydrogen as fuel |
| nuclear fission | the splitting of an atom's nucleus |
| nuclear fusion | when two nuclei are combined to produce a single larger nucleus |
| How a meltdown occurs | if the fuel rods in the reactor start to heat and can cause an explosion |
| Gravitational potential energy(GPE) | weight x height |
Created by:
rlin
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