Formular Flashcards
1
Q
Weight?
A
Weight = mass * gravitational field strength
W=mg
2
Q
Work done?
A
Force*displacement
W=fs
3
Q
Kinetic energy?
A
=1/2 * mass * speed2
=1/2mv2
4
Q
Pressure?
A
=force/area
=f/a
5
Q
Gravitational potential energy?
A
= mass * height * gravitational field strength
Ep=mgh
6
Q
Power? (Work done)
A
= work done/time
P=w/t
7
Q
Efficiency?
A
Useful energy output/ total energy output
8
Q
Wave speed?
A
Wave speed= frequency * wavelength
V=f*lambda
9
Q
Power? (Energy transferred)
A
Power = energy transfer / time
P=e/t
10
Q
Charge flow?
A
Charge flow (coulombs) =current*time
Q=IT
11
Q
Potential difference?
A
= current * resistance
V=IR
12
Q
Power? (Current)
A
=current * potential difference
P=IV
13
Q
Power? (Resistance)
A
=current2 * resistance
P=i2r
14
Q
Energy transferred?
A
=charge flow*potential difference
E=QV
15
Q
Density?
A
=mass/volume
P=m/v
