Formulas Flashcards
1
Q
weight =
A
mass x gravitational field strength
2
Q
work done =
A
force x distance
3
Q
force applied to a spring =
A
spring constant x extension
4
Q
kinetic energy =
A
0.5 x mass x (speed)²
5
Q
gravitational potential energy =
A
mass x gravitational field strength x height
6
Q
[regarding energy]
power =
A
energy transferred / time
7
Q
[regarding work done]
power =
A
work done / time
8
Q
efficiency =
A
useful power input / total power input
9
Q
charge flow =
A
current x time
10
Q
potential difference
A
current x resistance
11
Q
[regarding PD]
power =
A
potential difference x current
12
Q
[regarding circuits]
power =
A
(current)² x resistance
13
Q
[in general]
energy transferred =
A
power x time
14
Q
[regarding circuits]
energy transferred =
A
charge flow x potential difference
15
Q
density =
A
mass / volume
