56477
Description
Flashcards by lukemorris, updated more than 1 year ago
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Created by lukemorris
over 11 years ago
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| Question | Answer |
| Moment | force (N) x perpendicular distance from pivot (m) |
| Charge | current (A) x time (s) |
| Voltage | current (A) x resistance (ohms) |
| Electrical power | voltage (V) x current (I) |
| Wave speed | Frequency x wavelength |
| Step up transformers | Vp/Vs = Np/Ns primary voltage/ secondary voltage = primary coils/ secondary coils |
| Refractive Index | sin i/ sin r (incidence/refraction) |
| Pressure difference | height (m) x density (g/m^3) x gravity |
| Pressure difference | height (m) x density (g/m^3) x gravity |
| Efficiency | Useful work output/total energy input |
| Momentum | mass (g) x velocity (m) |
| Electrical Power | Voltage (v) x Current (A) |
| Force | Mass (g) x acceleration (m/s/s) |
| Acceleration | Change in velocity/time taken (s) |
| Density | Mass(g)/volume(cm^3) |
| Work Done | Force(N)x Distance Moved (m) |
| Energy Transferred | Work Done |
| Kinetic Energy | 1/2 x mass (g) x velocity^2 |
| Kinetic Energy | 1/2 x mass (g) x velocity^2 |
| Gravitational potential energy | mass x gravity x height (mgh) |
| Weight | mass (g) x gravitational field strength |
| Pressure | Force (N)/Area (m^2) |
| Average speed | Distance(m)/time(s) |
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