Simple Machine Crossword

A rigid bar resting on a pivot, used to help move a heavy or firmly places load with one end when pressure is applied to the other.
A flat supporting surface tilted at an angle used as an aid for raising or lowering a load.
A wheel fastened so that torque (pressure and push or pull)applied to the wheel winds a rope or chain onto the axle.
A piece of wood, metal, or other material having one think end and tapering to a thin edge, that is driven between an object to secure or separate them.
A short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted surface, used to join things together by being rotated.
A machine consisting of a wheel over which a pulled rope or chain runs to change the direction of the pull used for lifting a load.
_____=Work/Distance
There are __ simple machines
_____=Work/Time
Ideal Mechanical advantage=input arm divided by____
What is the unit for Work?
Why can't machines never have 100% efficiency?
Unit of power.
Device that can change "things" about a force.
The fixed point in a lever where the "bar" rotates.