Ap Physics B Siegel Unit 6

Front 1

phases of matter
states of matter

Back 1

liquid, solid, gas (for the purposes of this class)

Front 2

Density

Back 2

mass per unit volume
ρ=m/V
symbol: Greek "rho"
units: kg/m^3

Front 3

specific gravity

Back 3

ratio of density of a substance to the density of water

Front 4

Pressure

Back 4

force per unit area
P=F/A
units: N/m^2 = Pa (pascal)

Front 5

Pressure in a fluid

Back 5

P=ρgh
Pressure = density*gravity* depth under surface

Front 6

Atmospheric Pressure

Back 6

normally 101.3kPa or
101,300 N/m^2

Front 7

Gauge Pressure

Back 7

The pressure above atmospheric pressure. Example: tire pressure.

Front 8

Pascal's Principle

Back 8

If an external pressure is applied to a confined fluid, the pressure at every point within the fluid increases by that amount.

Front 9

Absolute presssure

Back 9

guage pressure + atmospheric pressure

Front 10

Pascal's Principle applied to hydraulics.

Back 10

Pa=Pb
F/a=F/a

Front 11

Archimedes principle

Back 11

The buoyant force on an object immersed in a fluid is equal to the weight of the fluid dispaced by that object.

Front 12

equation of continuity

Back 12

Since the flow rate of an incompressible fluid is constant through pipes of different diameters,

A1v1=A2v2

area * speed = area * speed

Front 13

Bernoulli's principle

Back 13

where the velocity of a fluid is high, the pressure is low, and vice versa.

Front 14

Bernoulli's Equation

Back 14