What is a Pully
Grooved wheel with a rope or cable wrapped around it
What is a wedge
Sloped surface that moves
What is work
Transfer of energy to an object by force that makes an object move in the direction of the force
What is force calculated by
Newtons
What is a reference Point
A reference point is the point motion is measured by
What is an Inclined Plane
Flat, slope surface
What is Simple machines
A machine that does work using only one movement
What is efficiency
Ratio of output work to input work
What is the SI unit of work
Joules
What is the distance in the work equation
The distance the object moves while the force is acting on it
What is a Lever
Made up of a bar that pivots about a fixed point
What is fulcrum
Point about which a lever pivots, or rotates
What is mechanical advantage
ration of output force to input force
What is the unit measure for Distance
Meter
What is a factor that effects work
Force at an angle
What is a screw
Inclined plain wrapped around a cylinder
What is power
Rate at which work is done
What is the equation of work
W=FD
What is equation for mechanical advantages
MA= F Out/ F In
What is another factor that effects work
lifting objects
What is a wheel and axles
made up of a shaft, or axle, attached to the center of a wheel such that both rotate together
What is transfer
To move from one place to another
What is the equation of Power
What is the equation for efficiency
Efficiency= W Out/ W In * 100%
What is the first simple Machine ever made
A screw