Term | Definition |
law of universal gravitation | states that the gravity acts between all objects in the universe |
mass | a measure of the amount of matter in an objects |
newtons 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 of which charges paa through a given point measured in amperes |
potential difference | the difference in potential energy between two location |
voltage | the potential difference between two points measured in volts |
insulator | a material that does not conduct heat or electrical energy well often used to prevent energy from leaving a particular area |
circut | a clothes 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 it easily |
resistor | an object added to a circuit that restricts the floe of electrical energy inhabits 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 one after another such that the current in each part is the same |
parallel | a circuit in which the parts are joined in branches such that the potential difference across each part is the same |
majestic force | the force at attraction of repulsion generated by moving or spinning electric charges |
magnetic field | area surrounding a magnet in which the magnetic force exists |
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 electrical energy into mechanical energy |
generator | a device that transforms mechanical energy into electrical energy |