Kinetic energy
Energy created by movement
Potential energy
Stored kinetic energy
Effort
How much you put in
Fulcrum
The middle of a seesaw and a part of a lever
Load
And amount of items
Wedge
A sharp part of a tool for penetration
Screw
A type of nail
Thread
The spiral of the screw
Pitch
The distance between the threads
Lever
A simple machine