Lesson Notes By Weeks and Term - Junior Secondary 1

Basic electricity 1

Get it on Google Play
Get it on the Apple App Store
  1. Home
  2. Lesson Notes By Weeks and Term
  3. Junior Secondary 1
  4. Basic electricity 1

TERM – 3RD TERM

WEEK SEVEN

Class: Junior Secondary School 1

Age: 12 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC TECHNOLOGY

Topic: BASIC ELECTRICITY 1

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. Define Current
  2. Identify the types of Current
  3. Define of Electric Circuit and identify Its Components and Symbols

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers,

demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures/diagrams of simple circuit

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher introduces and explains the concept current.

Students pay

attention

STEP 2

EXPLANATION

Teacher identify and discuss the types of current.

Students pay

attention and

participate

STEP 3

DEMONSTRATION

Teacher describe electric circuit and discuss it components.

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

BASIC ELECTRICITY 1

Current

Current refers to the flow of electric charge in a circuit. It is measured in amperes (A) and represents the rate at which electric charge passes through a conductor. Current can flow in two forms: direct current (DC), where the charge flows in one direction, and alternating current (AC), where the charge alternates direction periodically.

Types of Current

  1. Direct Current (DC): Thes is the electric current that flows consistently in one direction. The common sources of direct current are: Batteries, solar cells, and DC power supplies.
  2. Alternating Current (AC): It is the electric current that periodically reverses direction. Sources includes; Power grids, generators, and most household electrical systems.

 Electric Circuit and Its Components

An electric circuit is a closed loop or pathway through which electric current flows. It typically consists of several components that work together to allow the flow of electricity. The following are some simple components and their symbols:

1. Battery/cell: Provides the electrical potential difference (voltage) to drive the current in the circuit.

2. Switch: It's controls the flow of current by opening or closing the circuit.

3. Lamp/bulb: A lamp or bulb in an electric circuit serves as a load, converting electrical energy into light and heat.

4. Resistor: It's limits the flow of current in the circuit, converting electrical energy into heat.

5. Capacitor: Capacitors stores electrical energy and releases it when needed.

6. Inductor: Inductors stores energy in a magnetic field when current flows through it.

EVALUATION: 1. What is current?

  1. Identify and explain the two types of current
  2. Define electric circuit.
  3. Identify the components of a simple electric circuit and their symbols.

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively