year 10 equations Flashcards
1
Q
weight
A
weight=mass*gravitational field strength
2
Q
work done
A
work done= force*distance
3
Q
distance
A
distance=speed*time
4
Q
acceleration
A
acceleration=change in veloctiy/time taken
5
Q
resultant force
A
resultant force=mass*acceleration
6
Q
charge flow
A
charge flow=current*time
7
Q
potential difference
A
potential differnce = current*resistance
8
Q
total resistance
A
resistance of component 1 + resistanceof component 2
9
Q
power 2 equations
A
power=current*potential differnce
=work done/ time taken
10
Q
energy tranfered
A
energy transfered=power*time
11
Q
wave speed
A
waves speed= frequency * wavelength
12
Q
kinetic energy
A
kinetic engery=1/2massspeed2
13
Q
A
14
Q
efficiency
A
effciency=useful energy output/total energy input
15
Q
elasric potential energy
A
eleastic potential energy=0.5spring constant(extension)2
