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24 Cards in this Set
- Front
- Back
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Percent efficiency |
A measure of how much work/energy is conserved in a process |
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Primary cell |
An electric cell that produces current by a chemical reaction |
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Secondary cell |
A rechargeable electric cell that converts chemical energy into electrical energy |
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Static |
Lacking in movement (does not move) |
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Conductor |
Is the material that allows electricity to flow through it |
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Insulator |
Is a material that electricity cannot flow through |
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Electric load |
Uses electricity example) motors,lightbulbs, resistors |
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AC |
alternative current |
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DC |
Direct current |
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Protons |
Are positively charged |
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Electrons |
Or negatively charged |
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Neutrons |
Are neutral |
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When do objects gain electrons? |
Objects gain electrons one negatively charged |
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For basic parts of a circuit |
Load source (which is a battery) control device (which is a switch) connectors (which are wires) |
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Geothermal energy |
Uses internal heat of earths crust |
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What are two ways to charge an object by contact? |
Friction and conduction |
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Current electricity |
The continuous flow of electrons in a circuit |
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Electric circuit |
The path through conductors that electrons follow |
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Name three electrical generating stations |
Solar wind and turbines |
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Current |
Flow of electrons per second |
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Three examples of electrical loads |
The force that pushes electrons through a current |
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Resistance |
The ability of an object to slow down the flow of electrons |
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Three examples of electrical loads |
Light, kinetic energy, heat energy |
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Thermal generation |
Boils water into steam that turns the turbine blades fossil feuls: load, natural gas, oil |
