best machines power point
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Simple Machines
by colleen
Simple machines are tools that make work easier.
A wheel with an axle is a simple machine.
This bicycle is an example of a wheel with an axle.
This turbine gear is another example of a wheel with an axle.
A lever uses a bar and a fulcrum to lift or move things more easily.
A see-saw is an example of a lever.
A bottle opener is a type of lever.
An inclined plane has a slanted surface. It is easier to move
something up or down.
A wheelchair ramp is an inclined plane that helps people get into and
out of buildings.
Stairs are another form of inclined planes.
A pulley is a simple machine that uses a rope and wheel to lift things
up and down more easily.
A fishing pole is an example of a pulley.
Sailboats have many pulleys to hoist the sails.
We use simple machines everyday!