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Energy
Question | Answer |
---|---|
Energy cannot be created nor destroyed | Law of Conservation of Energy |
Matter cannot be created nor destroyed | Law of Conservation of Matter |
Stored energy, like a skateboarder at the top of a ramp | Potential Energy |
The energy of motion | Kinetic Energy |
Burning, friction produces | Thermal Energy |
Vibrations, thunder produces | Sound Energy |
Batteries, wood, gasoline are all | Chemical Energy |
Generators produce | Electrical Energy |
Simple machines and windmills are all | Mechanical Energy |
Energy is transferred by | conduction, convection, and radiation |
Energy transferred through direct contact | conduction |
Energy transferred in currents of liquids and gases | convection |
Energy transferred by waves through space | radiation |
These prevent the transfer of energy | insulators |
These help the transfer of energy | conductors |
These waves must move through solids, liquids, or gases | mechanical waves |
These waves can travel through empty space | electromagnetic waves |
The matter through which a wave travels is called a | medium |
The top of the wave | crest |
Trough | the bottom of the wave |
Wavelength | the distance from the crest of one wave to the crest of the next wave |
The height of a wave | amplitude |
How many waves pass a given point in a given amount of time | frequency |
What determines the color of a light wave? | frequency |
We can separate sunlight into all different colors using a | prism |