Definitions
The ability to do work
energy
A simple machine that is made of a bar that turns on a point
lever
when a wheel of a 'wheel and axel' turns one time, the wheel travel (longer or shorter) distance than the axel
longer
energy
ability to do work
The force that pulls all object to the Earths center
Gravity
Name 2 levers
crowbar, door, hammer, fishing pole, nut cracker, rake wheelbarrow
The axle in a "wheel and axle" turn with (greater or lesser) force than the wheel
greater
gravity
force that pulls objects to earths center
What is done when a force moves an object over a distance
work
a simple machine with a wheel and groove that holds a rope (pulling the rope down, the load moves up)
Pulley
A simple machine makes work (harder or easier)
easier
friction
resistance an object encounters when moving over another object
One or more inclined planes used to force material apart
wedge
Name 2 wheel and axle objects
bicycle, car, scooter, wagon, skateboard, clock, doorknob, faucet
When using a pulley the direction of the effort is down is down and the direction of the load goes (up or down)
up
effort
force applied to a simple machine to do work
The point that a bar on a lever turns on
fulcrum
a flat, slanted surface used to reduce the amount of efford needed to move an object to a higher position
incline plane
one or more inclined planes used to force materials apart is a (wedge or fulcrum)
wedge
fulcrum
the point that a bar on a lever turn at