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Energy
Chapter 32
| Question | Answer |
|---|---|
| what is energy | the ability to do work |
| what are the units of energy | Joules |
| What is kinetic energy | energy an object has due to movement |
| what is potential energy | energy an object has due to its position or condition |
| what is sound energy | it is caused by vibrations |
| what is chemical energy | it is found in food or in fuels |
| chemical energy in a battery can change into | light or heat energy |
| this energy causes a thermometer to move | heat |
| what is the source of all energy | the sun |
| the liquid metal found in a thermometer is called | mercury |
| crookes radiometer shows that | light can be changed into kinetic energy |
| principal of conservation of energy | energy cannot be created or destroyed but only changed from one form to another |
| fossil fuels are | the dead remains of plants and animals |
| solar panels convert light | to heat and electricity |
| nuclear energy comes from | the nucleus of an atom |
| hydroelectric energy is made using | water |
| biomass is | harvesting chemical energy from plants |
| geothermal energy is | energy from the core of the earth |
| sustainability is | the conservation of balance in the worlds ecology indefinitely |
| power is | work divided by time |
| work is | force multiplied by distance |
Created by:
PHealy
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