Created by Alexandra Anderson
almost 6 years ago
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Question | Answer |
Weight | mass * gravitational field strength |
Work done | force * distance (along the line of action) |
Force on a spring | spring constant * extension |
Moment of a force | force * distance (normal to direction of force) |
Pressure | force (normal to surface) ----------------------------------------- area of surface |
Distance travelled | speed * time |
Acceleration | change in velocity ----------------------------------- time taken |
Resultant force | mass * acceleration |
Momentum | mass * velocity |
Kinetic energy | mass * speed^2 -------------------------------- 2 |
Gravitational potential energy | mass * gravitational field strength * height |
Power ( with time and energy ) | energy transferred ---------------------------------- time |
Power ( with work done and time ) | work done --------------------------- time |
Efficiency ( with energy ) | useful output energy transfer -------------------------------------------------- total input energy transfer |
Efficiency ( with power ) | useful power output ---------------------------------- total power input |
Wavespeed | frequency * wavelength |
Charge | current * time |
Potential difference | current * resistance |
Power ( with potential difference ) | potential difference * current |
Power ( with resistance ) | current^2 * resistance |
Energy transferred ( with power) | power * time |
Energy transferred ( with charge ) | charge * potential difference |
Density | mass ----------------- volume |
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