click below
click below
Normal Size Small Size show me how
Unit 7 Energy
Mechanical, light, thermal, electrical and sound energy
| Question | Answer |
|---|---|
| the path that an electric current takes | circuit |
| the constant flow of charged particles (electrons) through the wires of a circuit | current |
| a battery or generator that provides electric power | source |
| energy that moves objects | mechanical |
| visible energy that travels in a wave | light |
| energy of moving particles (heat energy) | thermal |
| energy that is produced when charged particles move through the wires of a circuit | electrical |
| a form of energy that is produced when matter vibrates | sound |
| the ability to change matter or do work | energy |
| when light strikes an object and bounces off it | reflection |
| when light bends as it passes through a medium | refraction |
| an object or a substance | medium |
| a clear, curved piece of glass used to refract light | lens |
| to pass through | transmit |
| a clear medium that fully transmits light | transparent |
| a medium that transmits some light | translucent |
| a medium that does not transmit light | opaque |
| energy from the sun | solar |
| a lens that curves or bulges outward, like the outside of a sphere | convex |
| a lens that is curved inward like a cave | concave |