Weight, Mass And Gravity Flashcards
What is mass measured in
Mass is measured in kg
What is mass
Mass is just the amount of matter in an object
What do scientists sometimes believe about mass
They sometimes think of all the mass in an object as being at one single point
What do scientist call this theory
The centre of mass
What is weight
Weight is the force acting on an object due to gravity
What is this force caused by
It is caused by the gravitational field around the earth
What does the weight of an object depend on
It depends on its mass and the strength of the gravitational field
What is weight measured in
Newtons, N
How can you calculate the weight of an objects
You can calculate the weight of an object if you know its mass (m) and the strength of the gravitational field that it is in (g)
Are mass and weight directly proportional
Yes
For earth how much does (g) weigh
9.8N/kg