equations Flashcards
1
Q
weight
A
mass x gravitational field strength
2
Q
work done
A
force x distance
3
Q
moment
A
force x distance
4
Q
force applied to a spring
A
spring constant x extension
5
Q
pressure
A
force / area
6
Q
distance travelled
A
speed x time
7
Q
acceleration
A
change in velocity / time
8
Q
resultant force
A
mass x acceleration
9
Q
momentum
A
mass x velocity
10
Q
kinetic energy
A
1/2 x mass x speed²
11
Q
gravitational potential energy
A
mass x gravitational field strength x height
12
Q
power
A
energy transferred / time
13
Q
power
A
work done / time
14
Q
efficiency
A
useful output / total input
15
Q
wave speed
A
frequency x wavelength
16
Q
charge flow
A
current x time
17
Q
potential difference
A
current x resistance
18
Q
power
A
potential difference x current
19
Q
power
A
current² x resistance
20
Q
energy transferred
A
power x time
21
Q
energy transferred
A
charge flow x potential difference
