Equations Flashcards
1
Q
kinetic energy =
A
1/2 x mass x speed²
2
Q
gravitational potential energy =
A
mass x gravitational field strength x height
3
Q
power =
A
work done/energy transferred
________________________
time
4
Q
efficiency =
A
useful energy/power output
______________________
total energy/power input
5
Q
charge =
A
current x time
6
Q
potential difference =
A
current x resistance
7
Q
total resistance =
A
resistance of component 1 + resistance of component 2
8
Q
power =
A
current x potential difference
current² x resistance
9
Q
energy transferred =
A
power x time
charge x potential difference
10
Q
density =
A
mass
_____
volume
11
Q
wavespeed =
A
frequency x wavelength
12
Q
weight =
A
mass x gravitational field strength
13
Q
work done =
A
force x distance
14
Q
force applied to a spring =
A
spring constant × extension
15
Q
pressure =
A
force
_____
area
