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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 |