Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
|
Kinetic energy |
½ x mass x velocity² |
|
|
Gravitational potential energy |
Mass x gravitational field strength x height |
|
|
Elastic potential energy |
½ x spring constant x extension² |
|
|
Power |
Energy transferred ÷ time |
|
|
Powe |
Work done ÷ time |
|
|
Efficiency |
Useful output energy transfer ÷ total input energy transfer |
|
|
Efficiency |
Useful power output ÷ total power input |
|
|
Charge flow |
Current ÷ time |
|
|
Potential difference |
Current x resistance |
|
|
Total potential difference in series circuits |
Potential difference ¹ + potential difference² + ...... |
|
|
In series circuits, the same curreng flows through all componets, so |
Current¹ = current² = ........ |
|
|
Total resistance of of a series circuit (sum of resistors) |
R¹ + R² |
|
|
In a parallel circuit, potential difference is the same across all components. So |
Potential difference¹ = potential difference² = ...... |
|
|
In a parallel circuit, current is shared so the total current = |
Current¹ + current² +.......... |
|
|
Energy transferred |
Power x time |
|
|
Energy transferred |
Charge flow x potential difference |
|
|
Energy |
Mass x specific latent heat |
|
|
Overall energy change |
Energy required to break bonds - energy released by forming bonds |
|
|
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 |
|
|
Uncertainty |
Max value - minimum value ÷ number of readings |
|
|
Percentage uncertainty |
|
|
|
Random uncertainty |
|
