Download Weight, mass and gravity

Weight, mass and gravity
weight
 Weight is a force caused by gravity. The weight of an object is the
gravitational force between the object and the Earth. The more mass the
object has the greater its weight will be.
 Weight is a force, so it's measured in newton's. On the surface of the Earth
an object with a mass of 1 kg has a weight of about 10 N
 Click the link below to find out about why newton's are called newton's.
Newton’s
mass
 The mass of an object is the amount of matter or "stuff" it contains. The more
matter an object contains, the greater its mass. An elephant contains more
matter than a mouse, so it has a greater mass. Mass is measured in
kilograms, kg, or grams, g.
 A 100 kg object has a greater mass than a 5 kg object. Remember an
object's mass stays the same wherever it is.
gravity
 All objects have a force that attracts them towards each other. This is
called gravity. Even you attract other objects to you because of
gravity, but you have too little mass for the force to be very strong.
 Gravitational force increases when:
 the masses are bigger
 the objects are closer
 Gravity only becomes noticeable when there is a really massive object
like a moon, planet or star. We are pulled down towards the ground
because of gravity. The gravitational force pulls in the direction towards
the centre of the Earth.
 "Down" is towards the centre of the Earth, wherever you are on the
planet.
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teacher
Isaac newton
Isaac Newton was born in Wools
Thorpe, England on January 4, 1643.
His father, was a farmer who was also
named Isaac Newton, had died three
months before his birth. His mother
remarried when Isaac was three years
old and left young Isaac in the care of
his grandparents.
One day Isaac sat under a rosy red
apple tree that had been stood there
for many years. A few minutes after
Isaac got comfy under the tree
“bang” an apple fell on his head.
That’s when Isaac newton made
history he realised the force of
gravity…
Your own mini
experiment
Get two objects
which weight different
weights.
Hold them at the
same height and then
drop them.
Which one will land
first? Or will they land
at the same time?
Newton’s
 Newton's are named after Isaac newton the first person to realise what
gravity was.
Click on the link to take you back to where you where!
weight
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