Simple Machines — Quiz
1.
What is the special point on a lever called?
2.
How many types of simple machines are there?
3.
Which simple machine is a doorknob an example of?
4.
A wheelchair ramp is an example of which simple machine?
5.
What simple machine is shaped like an inclined plane wrapped in a spiral?
6.
Name one example of a simple machine you can find at a playground.
7.
What dös a simple machine help us do?