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26 Cards in this Set
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Speed 
Distance/Time 

Distance 
Speed x Time 

Time 
Distance/Speed 

Acceleration (t) 
Change in Velocity/time 

Change in Velocity 
acceleration x time 

Force (acc) 
mass x acceleration 

acceleration (f) 
force/mass 

Weight 
mass x gravitational field strength 

gravitational field strength 
weight/mass 

force (p) 
change in momentum/time 

Change in momentum 
force x time 

stopping distance 
thinking distance + breaking distance 

moment 
force x perpendicular distance from pivot 

orbital velocity 
circum. of orbit/ time for one orbit 

wave speed 
frequency x wavelength 

frequency 
1/time period 

Snell's Law 
n1 sin i = n2 sin r (refractive index) 

critical angle 
Sin c = 1/n 

efficiency 
useful energy/total energy 

power + (V) unit 
P=IV , watts (W) 

voltage + unit 
V=IR, volts (V) 

charge + unit 
Q=IT, coulomb (C) 

work done + unit 
W=Fd, J force x distance 

Gravitational potential energy + unit 
GPE=mgh, J mass x gravitational field strength x height 

kinetic energy 
KE= ½ mv 2, J ½ x mass x speed 2 

Power (w.d.) 
P=W/t, watts (W) work done/time 