Formulas
Formula for mechanical advantage
What is MA = input distance/output distance
or MA = effort arm length/load arm length
A beam or bar that pivots on a fixed point
What is a lever
A device that makes work easier and is made up of one or two parts
What are simple machines?
The result of a force applied to an object causing it to move
What is work?
Explain the difference between actual mechanical advantage and ideal mechanical advantage.
What is (your answer)
Formula for work
What is Force x distance?
The force applied to a simple machine
What is effort?
A straight, slanted surface used to raise an object
What is an inclined plane?
A metric unit used to mesure work and is equal to one newton meter
What is a joule?
Two properties all forces have are
What are magnitude and direction?
The point where the lever rotates
What is a fulcrum?
Two simple machines that are related to the inclined plane are
What are wedge and screw?
A metric unit used to measure force
What is a newton?
In the G.R.A.S.S. method, the first S stands for?
What is solution?
Where is the fulcrum located on a first class lever
What is the middle
A lever that uses a wheel & rope
What is a pulley?
Work is done by a student who applies 20 N to push a box over a distance of 4 m
What is 80 J?
Formula for the mechanical advantage that is not possible in real life applications
What is measured output force ÷ measured input force ?
This class of lever has the input force is between the fulcrum and the load force
What is class 3 lever?
A tiny inclined plane rapped around a calendar
What is a screw?
You help a friend's family move a sofa across a room. Together you apply a force of 1500 N to the sofa. You do 3000 J of work on the sofa. How far did you move it?
What is 2 m?