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Vocab
Force
Motion
Simple Machines
Magnets
100
a push or pull on an object
Force
100
a kind of force that pulls down everything on Earth
gravity
100
the change in the position of an object
motion
100
a simple machine with a flat, slanted surface
ramp
100
to push away or apart
repel
200
the place where something is
position
200
How are pushes and pulls alike?
They are both forces They make things move
200
Above, below, in, under are all ____ words
Position
200
a simple machine made of a bar that turns around a fixed point
lever
200
to pull together
attract
300
a force that slows down moving things
friction
300
How are pushes and pulls different?
Pushes move things away Pulls bring things closer
300
When an object is moving, it is in ______
motion
300
the point on a lever that does not move
fulcrum
300
the two ends of a magnet, or either end of the Earth’s axis
poles
400
how far something moves in a certain amount of time
speed
400
What force is being used in a game of Tug of War?
Pulls
400
What do you use to measure speed? a) balance b) thermometer c) stopwatch
c) stopwatch
400
Name three simple machines
Pulley Screw Ramp Lever Wheel and Axle Wedge
400
What happens when two north poles of a magnet are put together
They repel each other
500
a tool that helps move a force
simple machine
500
Is it harder to slide an object across a wooden floor or a carpeted floor? Why?
carpeted floor friction
500
Which was faster? Walking or hopping?
Walking
500
Choose 1 of the simple machines and explain how it could help you move something
Answers vary
500
What happens when a north pole and a south pole of a magnet are put together?
They are attracted to each other