lever, pully
screw
inclined plane
wedge
wheel and axle
100
what type of simple machine is a light switch
a lever
100
what type of simple machine is a light bulb?
a screw
100
what type of simple machine is a ramp?
inclined plane
100
what type of simple machine is a door stopper?
a wedge
100
what kind of simple machine is a ferris wheel?
wheel and axle
200
what type of simple machine helps lift heavy stuff?
a Pulley
200
what type of simple machine is used to hold stuff in place?
a screw
200
what type of simple machine is a step stool?
an inclined plane
200
what type of simple machine is teeth?
a wedge
200
what type of simple machine is a wheels on the car
wheel and axle
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