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Ch. 7 Vocabulary
Science
| Term | Definition |
|---|---|
| electrical energy | a form of energy that gives some things power to work |
| energy | the ability to do work or change something |
| kinetic energy | the energy an object has because of its motion |
| light energy | a form of energy that make it possible for the eye to see |
| potential energy | energy stored an object because of its position or state |
| sound energy | energy that is created by vibrating matter |
| conductor | a material through which energy quickly flows |
| electric current | the flow of electrical energy |
| insulator | a material that slows or stops the flow of energy, such as electricity, heat, or sound |
| frequency | the number of vibrations a sound makes each second |
| pitch | the high or low quality of a sound |
| sound wave | a wave that transfers energy through vibrating air or other matter |
| vibration | a back-and-forth motion |
| environment | all the living and nonliving things in an area |
| hydroelectricity | electricity produced from the energy of moving water |
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