Equations Flashcards
1
Q
Pressure?
A
Force / area
P = F/A
2
Q
Distance travelled?
A
Speed x time
S = v t
3
Q
Acceleration?
A
Change in velocity / time taken
a = v - u / t
4
Q
Wave speed?
A
Frequency x wavelength
V = f a
5
Q
Charge?
A
Current x time
Q = I t
6
Q
Potential difference?
A
Current x resistance
V = I R
7
Q
Electrical Power (1)?
A
Potential difference x current
P = V I
8
Q
Power (2)?
A
(Current²) x resistance
P = I²R
9
Q
General power?
A
Energy transferred / time
P = E/t
10
Q
Energy transferred?
A
Charge x potential difference
E = Q V
11
Q
Density?
A
Mass / volume
rho = m/v
12
Q
Period?
A
1 / frequency
13
Q
Boyle’s Law?
A
pV = constant
14
Q
Newton’s 2nd Law?
A
Acceleration = force / mass
a = F / m
15
Q
Weight?
A
Mass x gravitational field strength
w = m g