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Mass is
The number of atoms inside an object


Weight is
The pull or force due to gravity of the planet

Weight is measured in
Newtons / N

The gravity of the earth
10N/kg or 10 m/ s^{2}

The gravity of the moon
1/6 of the earth or 1/6 x10 N/ kg or 1/6 x10 m/s^{2}

The gravity of space
0 N/kg or 0 m/s^{2}

The formula to find weight
mass x gravity


The formula to find gravity

Hooke's law
There is always a direct proportion between force and length extention unless the object exceeds the elastic limit

How the extention is found
New length  original length

Makes a spring harder
Dense material, short length, smaller turns, thicker wire

Makes a spring softer
Not dense material, longer, larger turns, thinner wire

If an object obeys hooke's law
The graphs line is straight

If an object disobeys Hooke's law
The graphs line is curved

The object that holds everything up
Retort stand

Shows you the extention
Ruler/ scale

Shows you the new length
Pointer

The object that is added on to see new measurements
The load

Measurements you need to take in Hooke's law experiment
Weight and length

A planet is large
There is greater gravity

