## Physics Lesson Notes – Elastic Properties of Solids (Hooke’s Law)

Physics Lesson Notes – Elastic Properties of Solids (Hooke’s Law) Unit 1: Elasticity When a substance is deformed in any way, internal mutual forces (called stresses) are developed between adjacent parts of the substance. These forces tend to restore the substance to its equilibrum position. Elasticity is the property by Read more…

## Physics Lesson Notes – Magnets

Physics Lesson Notes – Magnets Unit 1: Magnet and Magnetic Materials A substance is said to be magnetic if it is attracted by a magnet. Objects pointing to same direction when freely suspended are said to be magnet. Examples of magnetic materials are iron, cobalt, nickel and certain alloys. Substances Read more…

## Physics Lesson Notes – Electric Circuit

Physics Lesson Notes – Electric Circuit An electric current will flow only if there is a complete circuit of conductors by which currents can leave from one terminal of the cell and flow round to the other terminal. This electric circuit is the path provided for the flow of electric Read more…

## Physics Lesson Notes – Current Electricity

Physics Lesson Notes – Current Electricity Unit 1: Definition of electric current, potential difference and resistance A current is any motion of charge from one region to another in an electric circuit. In this section, we shall discuss current in conducting materials (wire) in an electric circuit which may consist Read more…

## Physics Lesson Notes – Electric Charges

Physics Lesson Notes – Electrical Charges Unit 1: Electric charges and structure of matter Static electricity may be defined as electric charge at rest. We can only describe the properties of such charges and their behaviour. Observations of Static Electricity A plastic comb rubbed with a cloth will make someone’s Read more…

## Physics Lesson Notes – Particle Nature of Matter

Physics Lesson Notes – Particle Nature of Matter Unit 1: Structure of matter Matter is what we call anything that has mass. All substances are made up of matter. All matter is acted upon by a force called gravity. On the earth, matter is attracted by gravity towards the centre Read more…

## Physics Lesson Notes – Electric Charges

Physics Lesson Notes – Electric Charges Unit 1 – Electric charges and structure of matter Static electricity may be defined as electric charge at rest. We can only describe the properties of such charges and their behaviour. Many effects due to static electricity can be observed. A plastic comb rubbed Read more…

## Physics Lesson Notes – Speed, Velocity and Acceleration

Physics Lesson Notes – Speed, Velocity and Acceleration Unit 1 – Speed Speed is the time rate of distance. If a car covers a distance, d in a time interval, t, then, The S.l. unit of speed is metre per second (ms-1) (a) Average speed When the distances covered with Read more…

## Physics Lesson Notes – Fundamentals of Motion

Physics Lesson Notes – Fundamentals of Motion Motion involves a change of position of a body with time. The study of motion of a body without involving the forces which cause motion is called Kinematics. The study of forces and how they affect motion of a body is called dynamics Read more…

## Physics Lesson Notes – Position, Distance and Displacement

Physics Lesson Notes – Position, Distance and Displacement The position of an object in space or on a plane is the point at which the object can be located with reference to a given point, 0. A particle (or point) is precisely located in space with reference to some origin Read more…

## Physics Lesson Notes – Measurement of Mass, Weight and Time

Physics Lesson Notes – Measurement of Mass, Weight and Time The mass of a body is the quantity of matter or material which the body contains. It is a scalar quantity and it is constant. The SI unit of mass is the kilogram (kg) In order to help us understand Read more…

## Physics Lesson Notes – Units and Measurements

Physics Lesson Notes Topic – Units and Measurements Unit 1 – Fundamental quantities and units No physical quantity is meaningful unless it can be exactly measured, quantified and given a unit. In other words, we need two things to specify a physical quantity: the number or quantity and its unit Read more…

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