Term: 1^{st} Term
Week: 1
Class: Senior Secondary School 1
Age: 15 years
Duration: 40 minutes of 5 periods each
Date:
Subject: Physics
Topic: Introduction to Physics
SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to
INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source
INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures
INSTRUCTIONAL PROCEDURES
PERIOD 12
PRESENTATION 
TEACHER’S ACTIVITY 
STUDENT’S ACTIVITY 
STEP 1 INTRODUCTION 
The teacher reviews the students’ knowledge about the word physics 
Students pay attention 
STEP 2 EXPLANATION 
He defines physics. He discusses the concepts of matter

Students pay attention and participates 
STEP 3 DEMONSTRATION 
He explains fundamental and derived units giving examples of each. He also explains position, distance and displacement 
Students pay attention and participate 
STEP 4 NOTE TAKING 
The teacher writes a summarized note on the board 
The students copy the note in their books 
NOTE
INTRODUCTION TO PHYSICS
Physics is a branch of science that deals with the study of matter in relation to energy. The branches of Physics are: Mechanics, Light, Electricity, Waves, Magnetism, Atomic Physics, Electromagnetism, Dynamics, Heat, Sound etc.
CONCEPT OF MATTER
Matter is anything that has mass or weight and occupies space. The idea that matter is made up of minute particles called atom dated back to the ancient Greek. Atom is the smallest indivisible Particle of an element which can take part in a chemical change. It consists of proton, neutron and electron. Proton is positively charged, neutron is neutral and electron is negatively charged
Matter can exist in three states Solids, Liquids and Gases
SOLIDS: The molecules of solids are closely packed together. They have definite shape and volume
LIQUIDS: Its molecule are freer than that of solid, they have definite volume but no definite shape
GASES: The cohesive force binding the gases molecules together is negligible. They have no definite shape and Volume
QUANTITIES AND UNITS
There are two types
S/N 
FUNDAMENTAL QUANTITIES 
UNITS 
1 
Mass 
Kilogram (kg) 
2 
Length 
Meter (m) 
3 
Time 
Seconds (s) 
4 
Temperature 
Kelvin (k) 
5 
Electric Current 
Ampere (A) 
6 
Luminous Intensity 
Candela (Cd) 
7 
Amount of Substance 
Mole (mol) 
S/N 
DERIVED QUANTITIES 
UNIT 
1 
Volume 
M^{3} 
2 
Acceleration 
m/s^{2} 
3 
Work Done 
Nm 
4 
Momentum 
Kgm/s or Ns 
5 
Density 
Kg/m3 
6 
Electric Charge 
C 
7 
Speed 
m/s 
POSITION, DISTANCE AND DISPLACEMENT
POSITION: Position of an object in space or on a plane is the point at which the object can be located with reference to a given point
DISTANCE: This is the measure of separation between two points. To determine distance between two points located in a plane defined by two ordered pair of value (x1, y1) and (x2, y2) or assumed to be in space where they are defined by (x1, y1, z1) and (x2, y2, z2), the distance between them can be defined by applying the relation:
Distance, s= √( _{2}− _{1})^{2} + ( _{2} − _{1})^{2}
Or Distance, s= √( _{2}− _{1})^{2} + ( _{2} − _{1})^{2} + ( _{2} − _{1})^{2}
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Example: Calculate the distance between the points A(2,3) and B(5,1) on a plane
Solution
Distance AB = √(−5 − 2)^{2} + (1 − 3)^{2}
= √(−7)^{2} + (−2)^{2}
= √49+4
= 3 units
DISPLACEMENT: This is a distance covered in a specific direction.
Examples: The path distance from the garden to a school is 5 m west and then 4 m south. A builder wants to build a short distance path for it. Find the displacement length of the shortest path.
Solution:
Given: Distance to the west x = 5 m
Distance to the south y = 4 m.
Displacement is given by
s = 6.403 m.
The builder can build a path for displacement length of 6.7 m.
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DIFFERENCES BETWEEN DISTANCE AND DISPLACEMENT
S/N 
DISTANCE 
DISPLACEMENT 
1 
It only measures the space between two points 
It measures both the space between two points and the angular direction 
2 
It is a scalar quantity 
It is a vector quantity 
3 
It can be measured with meter rule, tape rule etc. without including compass 
Its involve the inclusion of Compass 
EVALUATION: 1. Define physics
CLASSWORK: As in evaluation
CONCLUSION: The teacher commends the students positively