Pulley and Wheel & Axle
A pulley is a ______ that is used with a cord of rope
wheel
What is an inclined plane?
Flat, slanted surface
back to back
What is a screw?
Spiral wrapped around a center post
What is a lever?
A bar that pivots or turns on a fixed point
lifts upward
How does an inclined plane work?
A wedge is used to do what?
Force things apart
It can lift objects or hold two objects together
What is that fixed point called?
What is an example of a pulley?
flagpole; curtain rope (to pull up or down the curtain)
What is an example of a wedge?
The head of an ax
What is an example of a screw?
Cap on a bottle of water
What is an example of a lever?
a seesaw
What is a wheel and axle?
Wheel + rod attached to it
When the wheel is turned, it turns the axle with it
Example of a wheel and axle?
Doorknob