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16 Cards in this Set

  • Front
  • Back
Force
A push or pull.
Gravity
The force that makes objects pull toward each other.
Friction
The force caused by two objects rubbing together that slows down or stops moving objects.
work
something done whenever a force makes an object move through a distance.
energy
The ability to do work.
Simple Machine
One of six kinds of tools with few or no moving parts that make work easier.
Lever
A simple machine made of a bar that is supported underneath at some point.
Fulcrum
Point on which a lever is supported and turns.
Load
An object that is being moved.
Inclined Plane
A simple machine that is a flat surface with one end higher than the other.
Wedge
A simple machine used to cut or split an object.
Screw
A simple machine used to hold objects together.
Wheel and Axle
A simple machine that has a center rod attached to a wheel.
Gear
A wheel with jagged edges like teeth.
Pulley
A simple machine made of a wheel and a rope.
Compound Machine
A machine made of two or more simple machines.