Vocabulary
Formulas
Simple Machines
Mechanical Advantage
Machines
100
Simple Machine- A machine that does work using one movement.
What is a simple machine.?
100
Power- P=W/T
What is the formula for power?
100
Roller skates are a wheel and axle.
What type of simple machine is roller skates?
100
Mechanical advantage is the ratio of a machine's output force produced to the input force applied.
What is mechanical advantage?
100
It can change -the size of a force; - the distance the force acts; - the direction of a force.
How does machines make work easier?
200
Pulley- A simple machine that consists of a grooved wheel with a rope or cable wrapped around it.
What is a pulley?
200
Work- W=Fd
What is the formula for work?
200
A knife is a wedge.
What type of simple machine is a knife?
200
If the mechanical advantage is greater than 1 then the output force is greater than the input force.
What does it mean if the mechanical advantage is greater than 1?
200
A machine is any device that makes doing something easier.
What is a machine?
300
Wedge- A simple machine that consists of an inclined plane with one or two sloping sides; it is used to split or separate an object.
What is a wedge?
300
MA= F out/ F in
What is the formula for mechanical advantage?
300
A shovel is a lever.
What type of simple machine is a shovel?
300

The force exerted on a simple machine is exactly opposite to the force my load is experience when I put in effort. 

Mechanical advantage is 1?

300

if a lever has 50g 2cm from the fulcrum and on the other side there is a mass that is 20 cm away. How heavy will the other object need to be? 

mass will be 5g

400
Fulcrum- The point about which a lever pivots.
What is a fulcrum?
400
Efficiency- W out/ W in x 100%
What is the formula for efficiency?
400
A flagpole is a pulley.
What type of simple machine is a flagpole?
400
The mechanical advantage tells you how many times larger or smaller the output force is than the input force.
What does the mechanical advantage tell you?
400
You need a input and output force.
What force do you need to use a machine?
500
Screw A simple machine that consists of an inclined plane wrapped around a cylinder.
What is a screw?
500

What formula is used to calculate the mechanical advantage of a lever, when you are not given the load and effort force? 

Ma = Ea/La


500
A ramp is a inclined plane.
What type of simple machine is a ramp?
500
An example of mechanical advantage That is greater than 1 is a crowbar.
What is an example of the mechanical advantage that is greater than 1?
500
The efficiency of a machine is the ratio of the output work to the input work.
What is the efficiency of an machine?
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