How many classes of levers are there
3
The round part that spins
Wheels
The energy of motion
Kinetic energy
A wheelbarrow is an example of this kind of lever
Second class
a device that converts potential energy into mechanical work
Engine
the measure of the ratio of output force to input force in a system is used to analyze the forces in simple machines like levers and pulleys.
Mechanical Advantage
A shovel is an example of this kind of lever
Another name for the body
Chassie
A twisting force that generally causes something to rotate around an axis or other point.
Torque
Scissors are an example of this kind of lever
Class 1
What the wheels are connected to
Axle
The resistance that one surface or object encounters when moving over another
Friction
What is the acronym for levers
FLE
This stops the car
Brakes
the force exerted by a fluid stream on any obstacle in its path or felt by an object moving through a fluid.
Drag