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5th Vocab Unit 4
vocabulary - light and electrical energy
Question | Answer |
---|---|
electrons have a complete pathway to flow through | closed circuit |
the ability of an object or substance to allow heat, electricity, or sound pass through it | conductivity |
any material that allows an electric current to pass through it easily | conductor of electricity |
the ability to do work | energy |
a form of energy that is felt as temperature | heat energy |
to prevent or reduce the passage of heat, electricity, or sound into, from, or through something | insulate |
a material that does not let heat energy, electricity, or sound energy to pass through it easily | insulator |
a curved piece of clear glass, or plastic that bends light rays | lens |
a form of energy that travels in waves and can move through space where there is no air | light energy |
how high or low a sound is | pitch |
the bouncing back of light rays from a surface | reflected |
the bending of light rays as they move from one material into another material | refracted |
energy from sunlight | solar energy |
a form of energy produced by vibrating objects | sound |
the energy of moving particles in a substance | thermal energy |
to pass or cause to pass through space or through a material | transmitted |
the rapid back-and-forth movement that produces sound | vibrate |