Formulae Flashcards
(19 cards)
1
Q
Force of an object
A
Mass x acceleration
2
Q
Suvat equations
A
S=ut+1/2at^2
S=vt-1/2at^2
V^2=u^2+2as
V=u+at
S=((u+v)/2)t
3
Q
Kinetic energy
A
Ke=1/2mv^2
4
Q
Gpe
A
mass x gravity x height
5
Q
Weight
A
mass x gravity
6
Q
Pressure
A
Force / area
7
Q
Momentum
A
Force x distance
8
Q
Pressure
A
mass x velocity
9
Q
Density
A
Mass / volume
10
Q
Pressure
A
Density x gravity x height
11
Q
Stress
A
Force/cross sectional area
12
Q
Strain
A
Extension / original length
13
Q
Young’s modulus
A
Stress / strain
14
Q
Work done
A
Force x distance
15
Q
Power
A
Work done / time
16
Q
Plank’s equation
A
Plank’s constant x frequency = kinetic energy + work done
17
Q
Fringe separation
A
(Wavelength x distance) / slit distance
18
Q
Drift velocity equation
A
Current = number density x cross sectional area x mean drift velocity x 1.6x10^-19
19
Q
Current
A
Change in charge / change in time
