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22 Cards in this Set
- Front
- Back
Kinetic energy |
½ x mass x velocity² |
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Gravitational potential energy |
Mass x gravitational field strength x height |
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Elastic potential energy |
½ x spring constant x extension² |
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Power |
Energy transferred ÷ time |
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Powe |
Work done ÷ time |
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Efficiency |
Useful output energy transfer ÷ total input energy transfer |
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Efficiency |
Useful power output ÷ total power input |
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Charge flow |
Current ÷ time |
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Potential difference |
Current x resistance |
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Total potential difference in series circuits |
Potential difference ¹ + potential difference² + ...... |
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In series circuits, the same curreng flows through all componets, so |
Current¹ = current² = ........ |
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Total resistance of of a series circuit (sum of resistors) |
R¹ + R² |
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In a parallel circuit, potential difference is the same across all components. So |
Potential difference¹ = potential difference² = ...... |
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In a parallel circuit, current is shared so the total current = |
Current¹ + current² +.......... |
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Energy transferred |
Power x time |
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Energy transferred |
Charge flow x potential difference |
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Energy |
Mass x specific latent heat |
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Overall energy change |
Energy required to break bonds - energy released by forming bonds |
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Gradient of a line |
Choose any points on the line, draw a right angled triangle. Using this line as the hypotenuse, do height÷width to find the gradient |
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Uncertainty |
Max value - minimum value ÷ number of readings |
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Percentage uncertainty |
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Random uncertainty |
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