MATHS
(STATISTICS 1)
PROBABILITY: Probability and
Multiplication Law
ADDITION LAW:
P(A) + P(B) P(AB) = P(AB)
Intersection
A or B (Union)
No need to subtract intersection in mutually exclusive events as it equals zero
MATHS
(STATISTICS 1)
MULTIPLICATION LA

MATHS
(CORE 1)
ALGEBRA: Manipulating Surds
IRRATIONAL: Number cant be written be as a fraction
RATIONAL: Can be written as a fraction, whole number or terminating decimals
SURDS: A number which has an irrational root
a x b = ab
a / b = a/b
ab + cb = (a +

MATHS
(STATISTICS 1)
PROBABILITY: Using Venn diagrams
OUTCOMES are the result of trials or experiments
EVENT is a particular result or set of results
A POSSIBILITY SPACE is the set of all possible outcomes
For equally likely outcomes, the probability of a

PHYSICS
RADIOACTIVITY: Fission and Fusion (10.1.3)
Objectives
Define the concepts of nuclear binding energy and binding per nucleon
Make calculations of nuclear mass, mass deficit and binding energy, including the use of
the atomic mass per unit
Describe

Radioactive Decay:
12
A=1
10
8
N
6
4
2
0
0
2
4
6
8
10
t
12
10
8
N
6
4
2
0
88
90
92
94
96
t
98
100
102
12
=1
is the decay constant. It is not
always what is observed as the
decaying of a nucleus is random,
and the decay constant is just the
probability th

Matter and Radiation
The Structure of The Atom
Atoms are tiny; the diameter of an atom is around 10e-11m (this notation means 10 to the
-11 meters). Ernst Rutherford set up an experiment in which he fired alpha particles at gold
foil and measured the defl

PHYSICS
NUCLEAR RADIATION: Rate of radioactive decay
(10.2/2)
Objectives
Describe the spontaneous and random nature of radioactive decay
Determine half-lives of isotopes graphically
Use the equations for rate of radioactive decay, and their logarithmic eq