Term
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Definition
| weight = mass x gravitational field strength |
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Term
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Definition
| work done = force x distance (along the line of action of the force) |
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Term
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Definition
| Force applied to a spring = spring constant x extension |
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Term
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Definition
| moment of a force = force x distance (normal to direction of force) |
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Term
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Definition
| pressure = force (normal to a surface)/ area (of that surface) |
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Term
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Definition
| distance travelled = speed x time |
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Term
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Definition
| acceleration = change in velocity/time taken |
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Term
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Definition
| resultant force = mass x acceleration |
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Term
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Definition
| momentum = mass x velocity |
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Term
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Definition
| kinetic energy = 0.5 x mass x (speed)2 |
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Term
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Definition
| gravitational potential energy = mass x gravitational field strength (g) x height |
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Term
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Definition
| power = energy transferred/time |
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Term
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Definition
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Term
| Efficiency - Energy transfer |
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Definition
| Efficiency = Useful output energy transfer/total input energy transfer |
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Term
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Definition
| efficiency = useful power output/total power input |
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Term
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Definition
| wave speed = frequency x wavelength |
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Term
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Definition
| charge flow = current x time |
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Term
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Definition
| potential difference = current x resistance |
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Term
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Definition
| power = potential difference x current |
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Term
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Definition
| power = (current)2 x resistance |
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Term
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Definition
| energy transferred = power x time |
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Term
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Definition
| energy transferred = charge flow x potential difference |
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Term
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Definition
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Term
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Definition
| pressure due to a column of liquid = height of column x density of liquid x gravitational field strength (g) |
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Term
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Definition
| (final velocity)2 - (initial velocity)2 = 2 x acceleration x distance |
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Term
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Definition
| force = change in momentum/time taken |
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Term
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Definition
| elastic potential energy = 0.5 x spring constant x (extension)2 |
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Term
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Definition
| change in thermal energy = mass x specific heat capacity x temperature change |
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Term
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Definition
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Term
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Definition
| magnification = image height/object height |
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Term
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Definition
| force on a conductor (at right angles to a magnetic field) carrying a current = magnetic flux density x current x length |
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Term
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Definition
| thermal energy for a change of state = mass x specific latent heat |
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Term
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Definition
| potential difference across primary coil/potential difference across secondary coil = number of turns in primary coil/number of turns in secondary coil |
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Term
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Definition
| potential difference across primary coil x current in primary coil = potential difference across secondary coil x current in secondary coil |
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Term
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Definition
| (For gases) constant = pressure x volume |
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