Vocab
This is the transfer of energy to an object by a force that makes an object move in the direction of that force.
What is work?
This is the most common kind of simple machine.
What is a lever?
Anything that moves also requires this.
What is work?
This is the formula to calculate power.
What is
"Power " = "Work" / "Time"
This is the point about which a lever pivots or rotates.
What is the fulcrum?
What is a pulley?
In relation to the output work, the input work of a machine is always _________.
What is greater?
This is the formula to calculate the mechanical advantage of a lever.
What is
A = "Length of the input arm"/"Length of the output arm"
This means to move from one place to another.
What is transfer?
A wheel chair ramp is an example of this.
What is an inclined plane?
The equation for calculating work is _____________.
What is
W= "Force " x " Distance"
This is the formula to calculate the mechanical advantage of a Wheel and Axle.
What is
A = "Radius of the wheel"/"Radius of the axle"
Where efficiency is to work, mechanical advantage is to ________.
What is force?
This kind of machine helps bind two objects together.
What is a screw?
This prevents the output work from being greater than the input work.
What is friction?
The mechanical advantage of this type of lever is always less than 1.
What is a third class lever?
This will never be greater than 100%.
What is efficiency?
This simple machine is often used as a doorstop, but also serves other purposes as well.
What is a wedge?
When motion occurs in multiple directions, the applied force is always the ________ of the triangle.
What is horizontal side?
If the length of a ramp is 15 meters, and its height is 20 meters, then its mechanical advantage is ________.
What is .75?