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W O R K
- Work: Occurs when a force exerted on an object causes that object to move some distance; is equal to force times distance and is measured in joules.
- force applied over a distance
- motion has to be same direction as the force or vise versa. If they are not in the same direction no work is done.
- two directions = it doesn't have to be exactly the same direction just a long the lines but if you turn around then it's different
- work equation = Force* Distance
- Force = newton
- distance = meter
- 1 Joule = 1 newton meter (force and motion combined)
1NM
F: 40 Newtons
Distance: = 2 meters
Formula: Force * distance
Work = 80J
- work and energy - work TRANSFERS energy

P O W E R
- Power = work/time
- Power: The rate at which one form of energy is transferred into another; the rate at which work is done.
- J/s = Jeules per second
- Power and energy - rate at which energy is transferred

V O C A B
input force - Force exerted on a machine.
output force - Force exerted by a machine.
mechanical advantage - Number of times the input force is multiplied by a machine; equal to the output force divided by the input force.
efficiency - Equals the output work divided by the input work; expressed as a percentage.

U S I N G M A C H I N E S
- machines purpose is to make work easier for us. (2 diff ways they make it easier. input force and output force)
- if I increase my force that it's a mechanical advantage.
- Mechanical Advantage Formula - output force (F out) / input force (F in)
- wanna make a machine more efficient you decrease the friction.
     
 
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