Pressure changes in fluids

?
What is the equation for pressure?
Pressure = perpendicular force/area
1 of 17
What is the unit for pressure?
N/m2 or Pa
2 of 17
What is the unit for perpendicular force?
Newtons, N
3 of 17
What is the unit for area
Metres squared, m2
4 of 17
Describe the particles in space
Higher up in the atmosphere there are fewer atoms/molecules per m3 so the density is low. This means there are fewer collisions per second and therefore less force is exerted. If there is less force, the pressure is therfore lower
5 of 17
What does mass mean?
How much material tou have
6 of 17
What is the unit for mass?
kg
7 of 17
What does weight mean?
The gravitational FORCE acting on a mass
8 of 17
What is the unit for weight?
N
9 of 17
What is the equation for weight?
weight = mass x gravitaional field strength
10 of 17
What is the gravitational field strenght on Earth?
10N/kg
11 of 17
Why does pressure increases with depth?
There is a greater mass of water above you. This causes a greater weight (i.e. force). A greater force causes a greater pressure
12 of 17
What is the equation for pressure?
pressure = height (or depth) x density x gravitational field strength
13 of 17
What is the unit for pressure?
Pa
14 of 17
What is the unit for height (or depth)?
m
15 of 17
What is the unit for density?
kg/m3
16 of 17
What is the united for gravitational field strength
N/kg
17 of 17

Other cards in this set

Card 2

Front

What is the unit for pressure?

Back

N/m2 or Pa

Card 3

Front

What is the unit for perpendicular force?

Back

Preview of the front of card 3

Card 4

Front

What is the unit for area

Back

Preview of the front of card 4

Card 5

Front

Describe the particles in space

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all P1 - Matter resources »