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Form 3 physics

HEATING EFFECT OF ELECTRIC CURRENT.

Specific objectives. Perform and describe experiments to illustrate the heating effect of electric current. State he factors affecting heating by an electric current. Derive the equations for electrical energy and power. Identify devices in which heating effect of an electric… Continue Reading…

Form 3 physics

ELECTROSTATICS II.

Specific objectives. Define capacitance. Sketch electric field patterns around a charged body. Describe charge distribution on conductors of various shapes. Explain lightning arrestors. Define capacitors and state its SI unit. Describe charging and discharging a capacitor. State the factors affecting… Continue Reading…

Form 3 physics

WORK, ENERGY AND POWER.

Specific objectives. Define work, energy and power and state their SI units. Define energy transformation. Explain the law of conservation of energy. Solve numerical problems involving work, energy and power.                                     Work. Is said to be done only when a… Continue Reading…

Form 3 physics

NEWTONS LAW OF MOTION.

Objects on earth do not move by themselves, they are said to be conservative. An external influence is required to make a body move or stop moving and this is called a force. A force is that which alters the… Continue Reading…

Form 3 physics

LINEAR MOTION.

Specific objectives. Define motion. Find linear quantities i.e. distance, displacement, speed, velocity and acceleration. Describe experiment to determine velocity and acceleration. Plot and explain motion graphs. Apply the equation of uniform accelerated motion to solve numerical problems. Determine acceleration due… Continue Reading…

Form 3 physics

FRICTION

Is a force between two surfaces in contact and prevent their relative motion. Is a force that opposes the sliding motion of a body over a surface. Is measured in Newtons (N).                         Types of frictional forces. Dynamic/kinetic/sliding friction. Is… Continue Reading…

Form 3 physics

CURRENT ELECTRICITY 2.

Specific objectives. Define p.d and e.m.f and state their SI units. Explain internal resistance. Measure p.d and electric current in a circuit. Verify Ohm’s law. Find resistance and state its SI unit. Determine experimentally the voltage current for various conductors.… Continue Reading…

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