Core Science - Equations ____ = Flashcards
1
Q
Weight = ?
A
mass x gravitational field strength
2
Q
Work done = ?
A
force x distance (along line of action)
3
Q
Force applied to a spring = ?
A
spring constant x extension
4
Q
Distance travelled = ?
A
speed x time
5
Q
acceleration = ?
A
change in velocity
/
time taken
6
Q
resultant force = ?
A
mass x acceleration
7
Q
momentum = ?
A
mass x velocity
8
Q
Kinetic energy = ?
A
0.5 x mass x (velocity)^2
9
Q
gravitational potential energy = ?
A
mass x gravitational field strength x height
10
Q
power = ? (1)
A
energy transferred
/
time
11
Q
power = ? (2)
A
work done
/
time
12
Q
efficiency = ? (1)
A
useful output energy transfer
/
useful input energy transfer
13
Q
efficiency = ? (2)
A
useful power output
/
total power input
14
Q
wave speed = ?
A
frequency x wavelength
15
Q
charge flow = ?
A
current x time
