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equations - Coggle Diagram
equations
Ek=1/2mass velocity^2
velocity=m/s mass=kg
weight= mass x grav.field strength
mass=kg grav.field strength=9.8n/kg weight= newtons
work done=force x distance (along line of action of force)
force = newtons distance=m work done=joules
force applied to a spring=spring constant x extension
spring constant=n/m extension=m
moment of a force= force x distance (normal to direction of force)
force=newtons distance=m
distance=speed x time
time=s speed=m/s
pressure=force normal to surface/area of that surface
pressure= n/m^2
acceleration=change in velocity/time taken
acceleration=m/s^2 velocity=m/s
momentum=mass x velocity
momentum= kg m/s
grav.pot=mgh
m=kg
wave speed= frequency x wavelength
wavelength=m frequency=hz wave speed=m/s
charge=current x time
charge=coulombs current=amps
potential difference=current x resistance
p.d=volts resistance=ohms
resultant force=mass x acceleration
power=energy/time
power=work done/time
efficiency=useful output energy/total input energy x100
efficiency=useful power output/total power input x100