Work
Simple Machines
Vocabulary
Solving for Work
Surprise!
100
___________ is the energy it takes to move an object.
WORK
100
A wheel attached to a rod or stick is called a ____________-________-_________.
Wheel-and-axel
100
Important parts of machines are known as ________________ machines.
Simple machines
100
Force = 2 N
Distance = 3 m
Work = ???
Work = 6 J
100
This scientist discovered gravity.
Isaac Newton
200
Work = _________ x ___________
Force x distance
200
A ramp that reduces the force needed to move something is called an ________________ ______________.
Inclined Plane
200
Any push or pull
Force
200
F = 6 N
d = 6 m
W = ???
36 J
200
A hypothesis is...
An explained guess
If...then...because
300
Work is measured using ______________.
Joules
300
Two inclined planes put together is called a ______________. 
Wedge
300
This simple machine is an inclined plane wrapped around a cylinder.
Hint***
The cap on a bottle of soda.
Screw
300
F = 30 N
d = 2 m
W = ????
60 J
300
If Larry used 12 Newtons of force to push his car 10 meters, how much work did he do?
120 Joules
400
The amount of work needed to move an object:
a. always stays the same
b. never stays the same
c. sometimes stays the same
Always stays the same.
400
A bar that rotates around a pivot point is called a _____________.
Lever
400
A newton is the unit for __________.
Force
400
d = 25 m
F= 4 N
W = ???
100 J
400
List the 6 simple machines and give a REAL WORLD example for each machine.
1. Inclined Plane
2. Pulley
3. Wedge
4. Screw
5. Lever
6. Wheel-and-Axle
500
What is one thing we want when we have to do work?
Work to be easier.
500
A wheel with a groove for a rope is called a ________________.
Pulley
500
More than one simple machine
Complex Machine
500
distance = 500 m
Force = 12 N
Work = ???
6,000 J
500
Work = 144 J
distance = 12 m
Force = ???
12 N