formulas Flashcards
1
Q
speed
A
distance / time
2
Q
acceleration
A
V - U/ time
3
Q
how to find total distance in speed time graph
A
area under graph
4
Q
weight
A
mass x gravity
5
Q
density
A
mass / volume
6
Q
force
A
mass x acceleration
7
Q
terminal velocity
A
weight of an object(downward) = air resistance (upwards)
8
Q
hookes law
A
force = extension x spring constant
9
Q
moment
A
force x distance from pivot
10
Q
law of moments
A
total clockwise moment = total anticlockwise moment
11
Q
work
A
force x distance
12
Q
kinetic energy
A
1/2 x mass x (v^2)
13
Q
potential energy
A
mass x gravity x height
14
Q
power
A
work done/ time taken
energy transfer / time
15
Q
pressure
A
force / area
16
Q
pressure in liquid
A
density x gravity x height