Formula Flashcards
How do you find weight
Weight=mass x gravitational feild strength
How to find work done
Work done = force x distance
How to find force applied to a spring
Force applied to a spring = spring constant x extention
How to find distance travelled
Distance travelled = speed x time
How to find acceleration
Acceleration = change in velocity/time taken
How to find resultant force
Resultant force = mass x acceleration
Momentum
Momentum = mass x velocity
Kinetic energy
Kinetic energy= 0.5 x mass x (speed)^2
Gravitational potential energy
Gravitational potential energy = mass x gravitational feild x height
Power
Power = energy transferred/time
Power
Power= work done / time
Efficiency
Efficiency = useful output energy transfer/total input energy transfer
Wave speed
Wave speed = frequency x wavelength
Charge flow
Charge flow = current x time
Potential difference
Potential difference = current x resistance