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Physics Formula
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Gravity
Key Concepts:
Terms in this set (28)
weight
mass x gravity (W=mg)
Force applied to a spring
spring constant x extension (F=ke)
acceleration
change in velocity / time taken
momentum
mass x velocity (p=mv)
gravitational potential energy
mass x gravitational field strength x height (Ep=mgh)
power
work done / time (W / t)
efficiency
Useful power output / total power input
charge flow
current x time (Q=It)
power
Potential difference x current (P=VI)
energy transferred
power x time (E=Pt)
density
mass / volume
work done
force x distance (W=Fs)
distance travelled
speed x time (s=vt)
resultant force
mass x acceleration (F=ma)
kinetic energy
0.5 x mass x (speed)2
power
Energy transferred / time (P=E/t)
efficiency
useful power energy transfer / total input energy transfer
wave speed
frequency x wavelength (v=fλ)
potential difference
current x resistance (V=IR)
power
Current squared x resistance (P=I squared R)
energy transferred
Charge flow x potential difference (E=QV)
final velocity squared - initial velocity squared
2 x acceleration x distance
elastic potential energy
0.5 spring constant x extension squared
period
1 / frequency
force on a conductor
Magnetic flux density x current x length
change in thermal energy
mass specific heat capacity x temperature change
thermal energy for a change of state
mass x specific latent heat
potential difference across a primary coil x current in primary coil
potential difference across secondary coil x current in secondary coil
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