1
Q
Hookes Law
A
F=kx
2
Q
Springs in series
A
1/keq = 1/k1 +1/k2…
3
Q
Stress
A
Ó=F/A
4
Q
Strain
A
Ẽ= x/Lo
5
Q
Youngs Modulus
A
E=Ó/Ẽ
6
Q
Area of a circle
A
A=Pi x r^2
7
Q
Boyles Law
A
pV=k
8
Q
Charles Law
A
V/T=k
9
Q
Pressure Law
A
p/T=k
10
Q
pVT Eqn 1
A
pV/T=k
11
Q
pVT Eqn 2
A
p1 V1/T1 = p2 V2/T2
12
Q
Ideal Gas Eqn
A
pV=nRT
13
Q
Boltzmann Gas Eqn
A
pV=nkT
14
Q
Root mean square speed
A
Crms = [(c1+c2+c3+…+cN2)/N]^1/2
15
Q
Mean square speed pressure link
A
pV=1/3Nm<c^2>
16
Q
Mean square speed density link
A
p=1/3{p}<c^2>
17
Q
Mean square speed temperature link
A
1/2m<c^2>=3/2kT
18
Q
Specific heat capacity
A
Q=mc/\Ø
19
Q
Specific heat capacity of a liquid
A
Q=mLcL/\Ø+mCcC/\Ø
20
Q
Specific heat capacity final temperature
A
mLcL(TL-Tf)=mCcC(Tf-Tc)
21
Q
Angular velocity (°)
A
W = Ø / t
22
Q
Arc length
A
s = Ø r
23
Q
Linear Velocity
A
v = r w
24
Q
Centripetal acceleration (v form)
A
a = v^2 / r
25
Centripetal force (v form)
F = m v^2 / r
26
Centripetal force (w form)
F = m w^2 r
27
Angular velocity (from period)
w = 2pi / T
28
° to rad
x° (2pi / 360)
29
rad to °
x rad (360 / 2pi)
30
Frequency (angular form)
f = w / 2pi
31
SHM Acceleration
a = -w^2 x
32
Angular velocity (from frequency)
w = 2pi f
33
Time period
T = 1/f
34
SHM Displacement
x = A cos wt
35
radius of nucleus
r = ro A^1/3
36
Volume of sphere
V = 4/3 pi r^3
37
Atomic Mass Number Relation
A = (r / ro)^3
38
Radius from Volume (Sphere)
r = (3 v/4pi)^1/3
39
Activity Decay Eqn
A = Ao e^-(lambda)t
40
Number Decay Eqn
N = No e^-(lambda)t
41
Decay Ratio Form (e^-lambda t)
A / Ao
42
Half life
t1/2 = 0.693/decay constant
43
Activity Definition Eqn
A = decay constant N
44
Log Decay Form (-lambda t)
Ln(A) - Ln(Ao)
45
Ln(A)
Ln(Ao) - (lambda)t
46
Ln(Ao)
Ln(A) + (lambda)t
47
Mass of nucleus
M = UA
48
De Broglie Wavelength
/| = h/p (plancks constant/momentum (mv))
49
Einsteins equation
E = mc^2
50
Binding energy per nucleon
BE per n = BE(total) / A (total binding energy / atomic number)
PH A2
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