Last Updated on July 21, 2020 by Alabi M. S.
BASIC SCIENCE AND TECHNOLOGY
THEME: YOU AND ENERGY
TOPIC – GRAVITATION AND WEIGHTLESSNESS
1. Definition of Gravitation and Weightlessness
2. Effects of Gravitation on Objects
By the end of the lesson, the students should have attained the following objectives (cognitive, affective and psychomotor) and should be able to –
1. explain the meaning of gravitation and weightlessness.
2. state the effects of gravitation on objects.
Falling fruit from the tree top.
The teacher will teach the lesson with the aid of:
1. Scale balance
2. Various objects
3. Writing materials
METHOD OF TEACHING – Choose a suitable and appropriate methods for the lessons.
Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons.
1. Scheme of Work
2. 9 – Years Basic Education Curriculum
3. Course Book
4. All Relevant Material
5. Online Information – Friction – Meaning, Uses, Advantages and Disadvantages of Friction (JSS 1)
Forces – Meaning and Types of Forces (JSS 1)
CONTENT OF THE LESSON
Gravity does exist everywhere in the universe but in the space, it does not exist.
DEFINITION OF GRAVITATION AND WEIGHTLESSNESS
Gravitation is defined as the force that pull down an object with weight (mass) back to earth. Or force that make everything that goes up to fall back down to earth.
For example, the force that brings down an orange from the orange tree, it is called gravitational force.
Weightlessness is defined as a condition that make an object with weight (mass) appear as without weight. That’s, the state of being weightless.
In space, everything with weight floats.
EFFECTS OF GRAVITATION ON OBJECTS
1. It causes falling of all objects.
2. It increases speed of falling objects.
3. It causes objects to move.
4. It makes exchange of gasses possible.
5. It supports life.
To deliver the lesson, the teacher adopts the following steps:
1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the students some questions;
2. Demonstrates the effect of gravitational pull on objects.
Student’s Activities – Carry out demonstrations on gravitation.
3. Leads students to demonstrate the effect of gravitation on objects.
Student’s Activities – Demonstrate the effect of gravitation on objects.
4. Guides class discussion on the effect of gratification.
5. Teacher’s/Student’s Activities – Carry out activities on weighing themselves and recording their individual weights.
To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.
1. define gravitational pull.
2. describe the effects of gravitation on stone, feather, book.
3. state where a person is likely to experience weightlessness.