This session will take four (4) classes to complete. It will deal with the following:-
1.	Class 1 & 2 – Galileo Galilie & The Simple Pendulum
2.	Class 2 & 3 – Combining & Resolving Vectors
3.	Class 4 & 5 - Forces

1.	Galileo Galilie & The Simple Pendulum
a.	discuss Galileo Galilei’s contribution to the methods of studying science
b.	understand why Galileo is regarded as the ‘father of experimental science’
c.	explain why the simple pendulum is described as ‘simple’
d.	understand the meanings of the terms associated with the simple pendulum
e.	appreciate the factors which determine the period of oscillation of a simple pendulum
f.	appreciate that straight line graphs can be used to determine how each of these factors affects the period of a simple pendulum
g.	understand why the pendulum was used in earlier times as the basis for constructing clocks

2.	Combining & Resolving Vectors
a.	distinguish between a scalar quantity (or ‘a scalar’) and a vector quantity (or ‘a vector’)
b.	understand what is meant by the ‘resultant’ of two co-planar vectors
c.	add together (or ‘combine’) two vectors to find their resultant in magnitude and direction by using either a construction method, or a calculation
d.	resolve a vector into two parts (or ‘components’), each acting perpendicular to the other

3.	Forces
a.	appreciate that a force is always either a push or a pull
b.	recall some ways in which forces are produced
c.	understand that a force may change the size, shape or motion of a body
d.	understand that forces generally act in pairs, called ‘paired forces’
e.	recall that paired forces act on two different objects of a system at the same time
f.	understand the concept of a derived quantity and how such a quantity is obtained
g.	recall that some derived quantities are given special names, generally after famous scientists
h.	understand the meaning of the term ‘fi eld of force’ as applied to gravitational forces
i.	define the term ‘gravitational field strength’
j.	use the term ‘gravitational field strength’ to calculate the weight of an object
k.	distinguish between the ‘mass’ and ‘weight’ of a body
l.	understand the meaning of the term ‘centre of gravity’ of a body
m.	understand why ‘centre of gravity’ may also be called ‘centre of mass’
n.	understand the significance of the centre of mass (or the centre of gravity) of a body in solving problems