BASIC SCIENCE WEEK 1 REVISION ON WORK, ENERGY, POWER, AND BODY IMAGE
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WEEK 1 LESSON NOTE
Subject: Basic Science
Class: JSS 3
Topic: Revision On Work, Energy, Power, and Body Image
Duration: 2 Periods
Learning Objectives
By the end of the lesson, students should be able to:
Period 1 (Work, Energy, and Power):
- Define work, energy, and power.
- State and apply the formulae for work and power.
- Identify the different forms of energy and explain the law of conservation of energy.
- Solve simple problems on work and power.
Period 2 (Body Image):
- Explain the meaning of body image.
- Differentiate between positive and negative body image.
- Identify the factors that influence body image and uniqueness.
- Recognize the need for high self-esteem and acceptance of individual differences.
Key Vocabulary Words
- Work
- Energy
- Power
- Joule (J)
- Watt (W)
- Force
- Body Image
- Positive/Negative Body Image
- Self-Esteem
- Uniqueness
Resources and Materials
- Whiteboard/Marker
- Chart showing forms of energy
- Flashcards with formulas (Work, Power)
- Pictures showing body image perceptions
- Textbook: Basic Science for JSS 3
Building Background
- Begin Period 1 by asking students: “What happens when you push a chair across the class? Are you doing work?”
- Begin Period 2 by asking students: “When you look in the mirror, what do you notice about yourself first? How does it make you feel?”
Content Details
Period 1: Work, Energy, and Power
Work
- Work is done when a force is applied to an object and the object moves in the direction of the force.
- Formula: Work = Force × Distance (W = F × d).
- Unit of work = Joule (J).
Examples:
- A mass of 5kg is raised through 2.5m. Work = 125J.
- A car pushed with 200N for 50m. Work = 10,000J.
Energy
- Energy is the ability to do work.
- Forms of energy: Mechanical, Chemical, Electrical, Heat, Light, Sound, Nuclear, etc.
- Law of Conservation of Energy: Energy cannot be created or destroyed but can be transformed from one form to another.
Power
- Power is the rate of doing work.
- Formula: Power = Work ÷ Time.
- Unit = Watt (W).
Examples:
- Child does 50J in 10s → Power = 5W.
- Blessing does 250J in 5s → Power = 50W.
Period 2: Body Image
Meaning of Body Image
- Body image is how a person feels and thinks about their body appearance (size, shape, complexion, etc.).
Types of Body Image
- Positive Body Image:
- True perception of one’s shape.
- Appreciation of one’s body.
- Confidence and comfort in one’s body.
- Negative Body Image:
- Distorted perception of body.
- Feeling ashamed, anxious, or uncomfortable with body.
Physical Features & Society
- Society often values certain features (tallness, light complexion, shiny skin).
- People with physical challenges (blind, deaf, crippled, cleft palate, etc.) may face discrimination.
Uniqueness of Individuals
- Everyone is unique and different.
- Factors influencing uniqueness: Heredity (genes), social habits, home influence, environment, nutrition.
Key Point:
- To overcome negative body image, one must build self-esteem and accept uniqueness.
Wrap Up & Assessment
Period 1 Questions
- Define work, energy, and power.
- State the unit of work and power.
- Solve: A man lifts a box weighing 50N through 4m. Calculate the work done.
Period 2 Questions
- What is body image?
- Mention 2 differences between positive and negative body image.
- List three factors that influence a person’s uniqueness.
Assignment
- Write down five forms of energy and give one example of each.
- In your own words, explain what positive body image means and why it is important.
HOD/VP’s Comment & Endorsement
………………………………………
(Signature/Date)
NOTE: You Can Get Your Complete Notes In All Subjects For All The Classes In Detail Lesion And Plane From US At An Affordable Price In Pdf Or Word Document Download On Your Computer. Get In Touch With Us On: WhatsApp: +2348102326329/ Call: 08076206066
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