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24 Cards in this Set
- Front
- Back
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Uncertainty |
Largest reading - smallest reading divided by 2 |
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Periodic time of a wave |
T(Periodic time)=1÷F(Frequency) |
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The wave equation |
V(Velocity)=F(Frequency)× lamda(Wavelength) |
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Intensity of a wave |
Intensity= power ÷ cross-sectional area |
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Intensity and Amplitude |
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Properties of fringes |
Lamda= ax ÷D |
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Wavelength relates to the angle of diffraction by the formula: |
d sin thita =n×lamda |
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For a source traveling at a speed Vs, emitting sound of speed v, observed frequency, Fo is given by: |
Fo=(Fs × V) ÷ (v+- Vs) |
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Charge |
Current × time
Q=It |
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Electrical work done |
Charge×Velocity |
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Power |
Current × time |
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Energy |
Current × Voltage × time OR Charge x Voltage |
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Resistance |
Potential difference ÷ current |
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Voltage |
Current × Resistance |
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Energy 2 |
I^2 × R × t |
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Energy 3 |
(V^2 × t) ÷ R |
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Potential difference |
Work done ÷ charge |
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Power 2 |
Potential difference × current |
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Power 3 |
I^2 × Resistance |
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Power 4 |
V^2 ÷ Resistance |
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Resistance of a conductor |
R=p(resistivity) × l(lenght) |
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Cross-sectional area |
Pie×d squared divided by 4 |
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Extention |
0.5 × ke(spring constant)^2 |
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Frequency |
1÷t(Time) |
