# physics

Density formula?
density= mass/volume
1 of 22
Pressure formula?
Pressure= force/area
2 of 22
Pressure difference formula?
pressure difference=height x density x gravity (10)
3 of 22
Equation for 'constant temperature'?
P1 x V1 = P2 x V2
4 of 22
Electrical power equation?
Electrical power= current x voltage
5 of 22
Energy transferred equation?
Energy transferred = current x voltage x time
6 of 22
Charge formula?
Charge = current x time
7 of 22
voltage and resistance formula?
voltage = current x resistance
8 of 22
efficiency equation?
efficiency = useful energy output/ total energy output
9 of 22
work done equation?
work done = force x distance moved
10 of 22
kinetic energy formula?
kinetic energy = 0.5 x mass x speed
11 of 22
G.P.E formula?
G. P. E = mass x gravity(10) x height
12 of 22
work done formula?
work done = force x distance moved
13 of 22
orbital speed formula?
2 x pi x orbital radius/ time period
14 of 22
speed formula?
distance/time
15 of 22
acceleration formula?
acceleration = change in velocity/ time
16 of 22
resultan force formula?
resultant force = mass x acceleration
17 of 22
moment equation?
moment = force x acceleration
18 of 22
weight formula?
weight = mass x gravitational field strength
19 of 22
How to find refractive index?
refractive index = speed of light in a vacuum/ speed of light in that material
20 of 22
What does snell's law say?
refractive index= sin i / sin r
21 of 22
How to find critical angles using snell's law?
sin c = 1/ n (refractive index
22 of 22

## Other cards in this set

### Card 2

#### Front

Pressure formula?

#### Back

Pressure= force/area

### Card 3

#### Front

Pressure difference formula?

### Card 4

#### Front

Equation for 'constant temperature'?

### Card 5

#### Front

Electrical power equation?