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Force and Motion: Glossary

A

applied force
a force applied to something
attract
to pull towards each other

F

force
a push or pull
friction
a force of rubbing objects
frictional force
the force caused by friction

G

gravity
the force that pulls all things towards the center of the earth

I

inertia
a property of all objects that is related to its mass - moving objects tend to stay moving and motionless objects remain motionless

M

magnetic force
the force created by a magnet
mass
The amount of matter in an object
motion
the changing of location or position

N

Newton
an English philosopher and mathematician who originated the theory of gravity
normal force
the force of an object which supports another object such as a book laying on a table

O

opposing forces
forces that work against each other

R

resisting force
a force such as wind resistance or friction

S

spring force
force created by a spring

T

tension force
the force of tension in a wire, rope or cable

V

velocity
speed in one direction
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