Solids, Liquids & Gases Flashcards
1
Q
What is the unit for pressure?
A
Pascal (Pa); p in equations
2
Q
What is the unit for density?
A
kg/m³ (or any mass/volume); ρ in equations
3
Q
What is the equation for density?
A
ρ = m/v
density = mass/volume
4
Q
What is the equation for pressure?
A
p = f/a
pressure = force/area
5
Q
How does pressure at a point in a gas or liquid at rest act?
A
It acts equally in all directions.
6
Q
What is the equation for pressure difference in fluids?
A
p = h x ρ x g
pressure difference = height x density x gravitational field strength
