Levers
Inclined Plane/ Wedge
Pulleys
Screws, Etc.
Wheels & Axles
100
What is a lever's job?
Push, pull, or lift things.
100
What is the job of a wedge?
Cut or split things.
100
What is the job of a pulley?
Makes it easier to lift objects up and down or from side to side.
100
A simple machine is _____________-powered.
people
100
What is the job of a wheel and axle?
Make it easier for objects and people to move father and faster.
200
Give two examples of levers
See-saw, wheelbarrow, or baseball bat
200
An inclined plane is usually a flat surface on a __________.
slant.
200
Name 2 places pulleys are used.
flagpole, clothesline, blinds.
200
What are the 2 jobs of a screw?
Can fasten things together and can lift heavy object.
200
Give two examples of a wheel and axle.
bicycle, doorknob, skateboard
300
How many classes of levers are there?
Three
300
Give 2 examples of a wedge.
scissors, boat, ax
300
Name the 2 types of pulleys.
Fixed and moveable
300
How many simple machines are there?
6
300
True or False: Sometimes the wheel turns the axle, and sometimes the axle turns the wheel.
True
400
What are the three parts of a lever?
Load, fulcrum, and force.
400
Give two examples of an inclined plane.
ramp and stairs.
400
Which type of pulley uses less force?
Movable
400
Name two places we find screws.
nut and bolt, piano stool
400
Wheel and axles that turn other wheels and axles are called _____________.
Gears
500
The ___________ is the point the supports the lever.
Fulcrum
500
The steeper the inclined plane, the ________ (more, or less) force you need to move up.
More
500
What is a block and tackle?
A combination of fixed and movable pulleys.
500
What do we call the ridges on a screw?
Threads
500
True or False: Wheels and axles use friction to function.
True
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