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SOUND FORM TWO SOUND FORM TWO:Sound is an important example of a longitudinal wave which is composed of both compressions and rarefactions. The frequency range in which compressional disturbances occur is called the sonic spectrum and is…

FLUID FLOW FORM TWO FLUID FLOW FORM TWO:Fluid in physics refers to liquids and gases. To study fluid flow we have to make the following assumptions: We consider fluids to be incompressible We assume that they have little or no…

 LINEAR MOTION FORM THREE LINEAR MOTION FORM THREE:Introduction Study of motion is divided into two; Kinematics Dynamics In kinematics forces causing motion are disregarded while dynamics deals with motion of…

REFRACTION OF LIGHT FORM THREE REFRACTION OF LIGHT FORM THREE: Introduction Refraction is the change of direction of light rays as they pass at an angle from one medium to another of different optical densities.   Exp. To…

NEWTON’S LAWS OF MOTION NEWTON’S LAWS OF MOTION:Newton’s first law (law of inertia) This law states that “A body continues in its state of rest or uniform motion unless an unbalanced force acts on it”. The mass of a body is a measure…

 ENERGY WORK POWER AND MACHINES  ENERGY WORK POWER AND MACHINES:Energy This is the ability to do work. Forms of energy. Chemical energy: - this is found in foods, oils charcoal firewood etc. Mechanical energy: - there are…

CURRENT ELECTRICITY FORM THREE CURRENT ELECTRICITY FORM THREE:Electric potential difference and electric current Electric current Electric potential difference (p. d) is defined as the work done per unit charge in moving charge from…

WAVES II FORM THREE WAVES II Properties of waves Waves exhibit various properties which can be conveniently demonstrated using the ripple tank. It consists of a transparent tray filled with water and a white screen as the bottom. On…

ELECTROSTATICS II FORM THREE ELECTROSTATICS II Electric fields An electric field is the space around a charged body where another charged body would be acted on by a force. These fields are represented by lines of force. This line…

HEATING EFFECT OF AN ELECTRIC CURRENT When current flows, electrical energy is transformed into other forms of energy i.e. light, mechanical and chemical changes. Factors affecting electrical heating Energy dissipated by current or…