Equations Flashcards
LEARN!!
1
Q
Weight
A
mass x gravitational field strength
2
Q
Force applied to a string
A
string constant x extension
3
Q
Acceleration
A
change in velocity / time taken
4
Q
Gravitational potential energy
A
mass x gravitational field strength x height
5
Q
Power (3 answers)
A
work done / time OR potential difference x current OR energy transferred / time
6
Q
Efficiency (2 answers)
A
useful power output x total power output
OR
useful output energy transfer / total input energy transfer
7
Q
Charge flow
A
current x time
8
Q
Energy transferred (2 answers)
A
power x time
OR
change flow x potential difference
9
Q
Density
A
mass / volume
10
Q
Work done
A
force x distance
11
Q
Distance travelled
A
speed x time
12
Q
Resultant force
A
mass x acceleration
13
Q
Kinetic energy
A
0.5 x mass x (speed)2
14
Q
Wave speed
A
frequency x wavelength
15
Q
Potential difference
A
current x resistance
