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Energy Test
Question | Answer |
---|---|
energy | the ability to do work |
stored energy | energy available for use |
closed circuit | a complete pathway through which electricity flows |
open circuit | an incomplete circuit through which electricity will not flow |
Name 3 sources of energy | batteries, fuels, the Sun, objects in motion |
series circuit | a circuit that has only one pathway for current to flow to multiple components |
parallel circuit | a circuit that has two or more pathways for current to flow to multiple components at the same time |
attract | to pull toward each other |
repel | to push away |
Like poles do this | repel |
Opposite poles do this | attract |
magnetic field | an area of magnetic influence around a magnet |
electromagnet | a piece of iron that becomes a temporary magnet when electricity flows through coils of insulated wire wrapped around it |
Name 3 ways to observe evidence of energy | heat, motion, light, sound |
potential energy | energy that matter has because of its position or condition |
kinetic energy | energy of matter in motion |
crest | the high point of a wave |
trough | the low point of a wave |
In a sound wave, amplitude equals | volume |
In a sound wave, wavelength equals | pitch |