Mass, Weight, Gravity Flashcards
1
Q
What is mass, SI unit (scaler quantity)
A
Mass is the amount of matter in a body, kilogram (kg)
2
Q
What is weight, SI unit (vector quantity)
A
The weight of an object is the gravitational force, of gravity, acting on it, newton (N)
3
Q
What is gravitational field?
A
A gravitational field is a region in which a mass experiences a force due to gravitational attraction.
4
Q
What is gravitational field strength?
A
Gravitational field strength is defined as the gravitational force acting per unit mass
5
Q
Formula to calculate weight?
A
W = mg
Weight = mass x gravitational force
6
Q
Formula to calculate density
A
d = m/v
Density = mass/volume
7
Q
What is density, SI unit
A
Density of a substance is defined as its mass per unit volume. Kilogram per cubic metre (kg/m^3)
