Mass, Weight And Centre Of Gravity Flashcards
What happens to the mass if the gravitational field strength changes
It doesn’t change
What is weight
Force experienced by the mass due to a gravitational field
Acceleration due to gravity is what
9.81
What is density
Mass per unit volume
gcm-3
kgm-3
If a solid object has a lower density than the fluid what will happen
Float
What is the centre of gravity
The place where the object will always balance around this point
How to find the centre of gravity
Hang object freely from a point
Draw verticals line downwards from point of suspension
Repeat
Where lines cross centre of gravity
When will an object be very stable
With low centre of gravity and a wide base area
Formula 1 racing cars
When will an object topple over
When vertices line drawn downwards from the centre of gravity is outside it’s base area
The mass of an object is…
The amount of matter in an object (kg)
