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Energy
Energy,Electricity,waves
Term | Definition |
---|---|
Energy | The ability to do work or to cause change |
Law of conservation of energy | Energy cannot be created or destroyed, it can only change forms or be transferred |
Open system | A system that continuously interacts with its surroundings |
Closed system | A system that can exchange energy, but not matter, with its surroundings. |
Electricity | The continuous flow of electric charges through a conductor |
Electron | A nedatively charged particle located outside the atoms nucleus |
Electric circuit | A closed path through which an electric current flows or may flow |
Electric current | A flow of electric charge |
Voltage | The difference in electrical potential energy between two places in a circuit |
Resistance | The measurement of how difficult it is for charges to flow through a material |
Electromagnetic spectrum | The range of seven types of waves that carry energy as electricity and magnetism |
Medium | A substance through which a wave travels |
Wave speed | The speed of a wave is determined when both frequency and wavelength are known S=Af |
Wave | A disturbance that transfer energy from one place to another without requiring matter to move the entire distance. |