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26 Cards in this Set
- Front
- Back
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Acceleration |
a =Change In Speed*V/T |
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Weight |
W=mg |
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Density |
p=m/v |
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Hooke's law |
D=Stiifness constant*extention |
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Newtons 2nd law |
F=ma |
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Moment of a force |
F*perpendicular distance from pivot |
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KE |
1/2mv^2 |
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GPE |
mgh |
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Work done |
Delta*W = Fd |
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Power |
P=E/t |
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Efficiency |
P=useful energy output/Total energy output *100 |
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Pressure |
p=F/A |
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Pressure due to liquid |
p=hpg |
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Energy to raise temperature |
E=mc Delta T |
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Energy to change state |
E = mlf |
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Wave equation |
v= Wavelength*frequency |
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Refractive index |
n= speed of light in a vacuum / speed of light in a material |
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Current and resistance |
V=i/r |
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Definition of current |
Q=It |
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Definition of charge |
V=E/Q |
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Electrical power |
P=VI |
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Electrical energy |
E=VIt |
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Resistance in series |
Rtotal = R1+R2+R3... |
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Resistance in parallel |
1/Rtotal = 1/R1+1/R2 |
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Transformers |
Vp/Vs = Np/Ns |
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Also transformers |
VsIS=VpIp |
