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science definitions
| Term | Definition |
|---|---|
| law of universal gravitational | states that the force acts between all objects in the universe |
| mass | a measure of the amount of matter in an object |
| newton's first law of motion | states that an object at rest will stay at rest and an object in motion will stay in motion unless an unbalanced force acts on the object |
| electric current | the rate at which charges pass through a given point; measured in amperes |
| potential difference | the difference in potential energy between two locations |
| voltage | the potential difference between two points; measured in volts |
| insulator | a material that does not conduct heat of electrical energy well; often used to prevent energy from leaving a particular area |
| circuit | a closed path through which electricity can flow |
| load | a device in a circuit that does work using electrical energy |
| conductor | a material that allows heat or electrical energy to flow through in easily |
| resistor | an object added to a circuit that restricts the flow of electrical energy; inhibits the flow of electric current by producing a voltage drop when current passes through it |
| switch | a device used to control the flow of current through a circuit |
| series circuit | a circuit in which the parts are joined on after another such that the current in each part is the same |
| parallel circuit | a circuit in which the parts are joined in branches such that the potential difference across each part is the same |
| magnetic force | the force of attractions of repulsion generated by moving or spinning electric charges |
| magnetic field | area surrounding magnet in which the magnetic force exists |
| electromagnetism | the interaction between electricity and magnetism |
| electromagnet | a coil that has a soft iron core and that acts as a magnet when an electric current is in the coil |
| electric motor | a device that converts electricity energy into mechanical energy |
| generator | a device that transforms mechanical energy into electrical energy |
Created by:
Macster
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