12 terms

Physical Science_Energy #1

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diagram
a plan, sketch, drawing, or outline made to show how something works or to show the way parts are put together
force
a push or pull that causes an object to move, stop, or change direction
gravity
the force that pulls all things in the universe toward each other; the force that pulls things down on Earth
magnetism
a force that pulls iron or steel across a distance; a force that attracts or repels magnetic material
friction
a force that resists motion when objects rub against each other
motion
a change in the position of an object
simple machine
a device with few or no moving parts that changes the size or direction of a force
energy
the ability to cause a change in matter
interaction
the effect that materials have when they connect with each other
electricity
energy that flows through a circuit and can create light, heat, magnetism, sound, or other effects
electric circuit
a complete (closed) path where electricity (electrons) can flow; an imcomplete (open) path stops the flow of electricity
electromagnet
a temporary magnet created when electricity passes through wire that is wrapped around an iron bar