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15 Cards in this Set

  • Front
  • Back
Force
a push or pull
Friction
the force caused by rubbing two objects together that slows down or stops moving objects
Gravity
the force that pulls objects toward the center of the earth
Magnetism
the force that causes magnets to pull on objects that are made of certain metals
Pole
a place on a magnet where magnetism is the strongest
Work
something done whenever a force moves an obect through a distance
simple machine
one of six kinds of tools with few or no moving parts that make work easier
Lever
simple machine made of a bar or board that is supported underneath by a fulcrum
Fulcrum
the point on which a lever is supported and moves
inclined plane
a simple machine that is a flat surface with one end higher than the other
screw
a simple machine used to hold objects together
pulley
a simple machine made of a wheel and a rope
wheel and axle
a simple machine that has a center rod attached to a wheel
gear
a wheel with jagged edges like teeth
wedge
a simple machine used to cut or split an object