There are this many classes of levers.
3
This is an example of a pulley in our classroom.
The extension cord
A wheel and axle involves two objects that are this shape
Circular/Cirle
An inclined plane has this many moving parts
None or zero
This other simple machine is wrapped around a cylinder to make a screw.
An inclined plane
This is the term for the pivot or turning point of a lever.
The fulcrum
This is the simplest form of a pulley and is fixed in place and cannot be moved.
Fixed Pulley
This was the first person to invent a car in 1896
Henry Ford
This object, commonly used by movers, is also another name for an inclined plane.
A ramp
This is the term for the ridges around the cylinder.
Thread
This is the term for what is holding a lever down on one end.
The load or weight
This is the name for a combination of pulleys designed to make the effort needed LESS than half of the weight of the load.
Compound or Combined Pulley
A doorknob is an example of a wheel and axle where the force is applied to this part of the machine.
The wheel
This famous place, commonly seen in the illuminati symbol, is believed to have build using only inclined planes.
The Pyramids
This is the term for the distance between threads on a screw.
Pitch
This is the term for what someone has to put in in order for a lever to work
The effort or force
This is the most common type of compound pulleys and is a combination of pulleys and ropes used for lifting heavy loads.
Block and Tackle Pulley
This is a special type of wheel and axle that has teeth.
A gear
This term simply means a raised end or raised at one end.
This term is used to describe the sharp part of a screw that typically starts to create the hole for the screw to grab on to.
The tip
This is the term for what a lever is free to rotate on
Pivot or Fulcrum
This is attached to a moveable pulley and both the pulley and it can move from place to place.
A load/weight
A windmill spins when you apply force to this part of the machine
The axle
This type of slope will provide a greater mechanical advantage when trying to push an object up an inclined plane.
Gentle Slope
This is the term used to describe the cylinder of a screw and can also be defined as the body of a spear or an arrow.
Shaft