2 Written Questions
2 Multiple Choice Questions
- a stick free to pivot back and forward to a certin point.the point on this machine is called the fulcrum.
- this simple machine acts like a ramp.
2 True/False Questions
Screw → this machine is like a ramp- and the thread is like the angle of an inclined plane. the wider the thread the harder it is to turn.
pulley → this machine is really an inclined plane on its side. but instead of helping you move things to a higher level, it helps you push things apart.