 | Term | Definition |
| |
effort |
the force used on a simple machine |
| |
fulcrum |
the support on which a lever plus its load rests |
| |
pulley |
a simple machine made of a wheel with a rope around it |
| |
inclined plane |
a simple machine like a ramp, which is used to move an object up or down |
| |
load |
the weight that is to be lifted or moved |
| |
lever |
a simple machine made of a bar resting on a fulcrum |
| |
wheel and axle |
a simple machine made of a wheel and a rod joined to the center of the wheel |
| |
wedge |
a simple machine that is made of two inclined planes put together and that can be driven into another material |
| |
screw |
a simple machine made of a stick with ridges wrapped around it |
| |
work |
is done when a force moves an object or makes a change |
| |
simple machines |
make work easier by requiring less force or by changing the direction of the force |
| |
less force |
when the load is moved closer to the fulcrum and it balances |
| |
levers differ |
based on the relative positions of the fulcrum, load, and effort |
| |
compound pulleys |
two or more pulleys together |
| |
friction |
can slow the movement of an object up or down an inclined plane |
| |
complex machine |
a machine made of many parts, some of which are simple machines |
