Formular Flashcards
Weight?
Weight = mass * gravitational field strength
W=mg
Work done?
Force*displacement
W=fs
Kinetic energy?
=1/2 * mass * speed2
=1/2mv2
Pressure?
=force/area
=f/a
Gravitational potential energy?
= mass * height * gravitational field strength
Ep=mgh
Power? (Work done)
= work done/time
P=w/t
Efficiency?
Useful energy output/ total energy output
Wave speed?
Wave speed= frequency * wavelength
V=f*lambda
Power? (Energy transferred)
Power = energy transfer / time
P=e/t
Charge flow?
Charge flow (coulombs) =current*time
Q=IT
Potential difference?
= current * resistance
V=IR
Power? (Current)
=current * potential difference
P=IV
Power? (Resistance)
=current2 * resistance
P=i2r
Energy transferred?
=charge flow*potential difference
E=QV
Density?
=mass/volume
P=m/v
Displacement?
=velocity*time
S=vt
V=s/t
Resultant force?
=mass * acceleration
F=ma
Momentum?
=mass*velocity
P=mv
Force on spring?
=constant*extension
F=ke
Acceleration?
=change in velocity/time
Taken
A=v-u/t
