Vocabulary
Forces
Simple Machines
Simple Mach 2
100

a force that pulls objects down

gravity

100

Which force pulls you down a playground slide?

gravity

100
A simple machine that is usually used to hold things together and is made of an inclined plane on a post
screw
100
A knife is an example of this kind of simple machine.
What is a wedge
200

a force that slows things down

friction

200

Name a surface that has a lot of friction.

grass, sandpaper, carpet, gravel

200
The simple machine most often used by a person in a wheel chair when entering a building that is not level with the ground.
inclined plane
200
A seesaw, a hammer, a crowbar, a light switch.
What is a lever
300

a force is a _______ or ________

push or pull

300
If two opposite forces are acting on an object with the same amount of force, what will happen?
the object will not move
300
A doorknob is an example of this type of simple machine.
wheel and axle
300
A screwdriver is this type of simple machine.
What is a wheel and axle
400

____ _______ make work easier because they require less force to move an object

simple machines

400

Name a surface that has little friction.

glass, metal, tile, hardwood floor

400
Which two types of simple machines are actually types of inclined planes?
wedge and a screw
400
When raising a flag on a flagpole, you are using this type of simple machine?
pulley
500

when an object changes position/moves

motion

500
What two forces are acting together to keep a cup balanced on a table?
What is gravity and the force of the table holding the cup up
500
What type of simple machine would best be used to lift a heavy object multiple stories
pulley
500
The six kinds of simple machines.
What is wedge, screw, wheel and axle, lever, pulley, and inclined plane
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