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2022 Basic Science Lesson Note for Second Term JSS 2

Basic Science Scheme of Work for JSS2 Second Term

SCHEME OF WORK

Week One: Work, Energy, and Power

Week Two: Potential and Kinetic Energy

Week Three: Calculations involving work done

Week Four: Energy transfer when work is done

Week Five and Six: Family Life Education

Week Seven and Eight: Kinetic Theory I

Week Nine: Kinetic Theory II

Week Ten: Boiling and Evaporation

Week Eleven: Revision

Week Twelve: Examination

 

 Below are the 2022 complete JSS2 Second Term Basic Science Lesson Note 

Second Term JSS2 Basic Science Lesson Note

 

Week One: Work, Energy and Power

INTRODUCTION:

Work, energy and power are often used in everyday conversation. Work is thought to mean any kind of physical and mental activity, while power is expressed in terms of strength. In science, the terms: work, energy and power have special meanings. For work to be used in science, two things are necessary.

There will be a force and the force must produce motion. Power on the other hand is the rate at which work is done. Energy is the ability to do work, however, the new thing to consider here is that it is considered in relation to other aspects of our daily lives. In this chapter, the concept of work, energy, power and their calculation will be explained. To learn more, click here.

Week Two: Potential and Kinetic Energy

INTRODUCTION:

A stone on the ground does not have any energy so long as it is lying on the ground.

The stone cannot be doing any work. However, if a stone is placed on a table and it falls off, it can break a lamp on which it falls. The stone here has done some work by virtue of its position. Therefore, when the stone is on the table, it has energy stored up as a result of its position. The type of energy possessed by a body due to its position is called Potential Energy. To learn more, click here.

Week Three: Calculations involving work done

INTRODUCTION:

Apply the formulae:

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Work is a product of force and distance moved in a given direction, and the quantity of work done is always equal to the quantity of energy put in. In science, work is said to be done when a force can produce movement in a measured direction, i.e. work = force X distance (f X d).

If you apply a force over a given distance – you have done work.  Work = Change in Energy. If an object’s kinetic energy or gravitational potential energy changes, then work is done. The force can act in the same direction of motion. Or, the force can act against the motion. (Drag and friction do that.) Forces can act when objects touch. To learn more, click here.

Week Four: Energy transfer when work is done

INTRODUCTION:

Work is the force acting on an object to cause a displacement. Work is done on an object when you transfer energy to that object. If one object transfers (gives) energy to a second object, then the first object does work on the second object. When an object is dropped from above the ground, work is done as the object is pulled to the ground. As the object is falling and work is done, the potential energy of the body is changed to kinetic energy. Work done and energy transferred is measured in joules (J). The work done on an object can be calculated if the force and distance moved are known. To learn more, click here.

Week Five and Six: Family Life Education

INTRODUCTION:

Family life education is the form of educating the family member on important and general issues needed for the development of their personal and general life.

It also refers to what young people or adolescents should know about their sexual activity and reproductive health. The need for educating the young mind is necessary cause lack of education results in danger for the young ones who are ignorant. To learn more, click here.

Week Seven and Eight: Kinetic Theory I

INTRODUCTION:

A greek philosopher proposed that matter was made up of particles which he called ATOMS.  He made various statements about the nature of atoms. His ideas about atoms are stated below

  1. The matter is made up of minute indivisible particles called atoms.
  2. Atom cannot be created or destroyed.
  3. All the atoms of an element are alike and different from the atoms of all other elements.
  4. Atoms combine in small whole numbers to form new substances. To learn more, click here.

Week Nine: Kinetic Theory II

INTRODUCTION:

The kinetic theory of matter gives a clear explanation of the internal processes involved at the particle level when matter undergoes a change of state.To learn more, click here.

Week Ten: Boiling and Evaporation

INTRODUCTION:

In a liquid such as water, the particles are in continuous motion but the speed of movement is not as fast as in a gas. When heat is applied to water in a beaker or container, the particles of water gain energy. This additional energy makes the particles move faster than before. As more and move particles gain higher energy they move rapidly in all directions.

The mass of water begins to move physically at a particular temperature. At this temperature, the particles acquire greater kinetic energy and begin to escape into vapour. At this stage, boiling is said to be taking place. Boiling is therefore a state in which all particles of the liquid have acquired energy and are moving rapidly in all directions, especially in the direction of the open mouth of the container. To learn more, click here.

Week Eleven

This week, we would be doing a revision of all that we learned during the term.

Week Twelve: Examination

 

Afterwards, we would write an examination, which would test our knowledge of what has been taught so far. 

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