equations!! Flashcards
(22 cards)
1
Q
work done
A
force x distance
2
Q
kinetic energy
A
0.5 x mass x speed^2
3
Q
gravitational potential energy
A
mass x gravity x height
4
Q
power
A
work done / time or energy /time
5
Q
efficiency
A
useful output / input
6
Q
charge
A
current x time
7
Q
potential difference
A
current x resistance
8
Q
power (pd)
A
potential difference x current
9
Q
power (I)
A
current^2 x resistance
10
Q
energy transferred
A
charge flow x potential difference
11
Q
density
A
mass / volume
12
Q
WORK DONE
A
W = F x S
13
Q
KINETIC ENERGY
A
Ek = 1/2M x V^2
14
Q
GRAVITATIONAL POTENTIAL ENERGY
A
Ep = M x G x H
15
Q
POWER
A
P = W / T
16
Q
EFFICIENCY
A
OUT / IN
17
Q
CHARGE
A
Q = I x T
18
Q
POTENTIAL DIFFERENCE
A
V = I x R
19
Q
POWER (PD)
A
P = V x I
20
Q
POWER (I)
A
P = I^2 x R
21
Q
ENERGY TRANSFERRED
A
E = Q x V
22
Q
DENSITY
A
p = M / V
