# Physics

## Reflection and Refraction of Light – Physics

REFLECTION OF LIGHT Light is a form of energy that causes the sensation of vision. There are natural and artificial sources of light. Natural Sources: Sun, stars etc… Artificial Sources: Bulbs, fluorescent tubes, candles, lamps, torches, arc light etc… LUMINOUS OBJECTS: These are objects that generate and emit light by themselves. Examples are the sun, stars, …

## Waves And Sounds – Wave Parameters

This article will help you understand the wave parameters, classes, types, and properties of waves. you will also read on Interference, properties of sounds etc… Waves and Sounds A Wave is a disturbance which travels through matter or space and carries energy from one point to another without permanently displacing the particles of matter. The …

## Electrostatics

What is Electrostatics? Electrostatics is the study of electric charge which is not moving i.e. it does not move, it is static. After reading this article, you’ll learn the necessary terms and keywords for the under-listed and you will be able to answer questions on Electrostatics, and the rest of them. Electrostatics. Charge. Coulomb’s law. …

## Work, Energy and Power – Physics Summary

Work, Energy, and Power are inter-related and are often used together in as much as they have different methods of deriving or solving practice questions with their formulas respectively. In this article, Work, Energy, and Power, you will learn their definitions, formulas and how they are been applied in solving examination questions. WORK When a …

## Elasticity – Elastic And Inelastic Materials

This article gives you a summary of Elasticity and types of materials, you will also learn the Hooke’s Law, read more on stress and strain and its formula likewise the Young Modulus, longitudinal stress and strain and finally, the modulus of elasticity. ELASTICITY Elasticity, This is the ability of a material to regain its original shape …

## Frictional Force – What Is Friction?

In this article, you will learn the definition of friction, laws of friction, types and effects of friction, advantages and disadvantages of friction or frictional force. WHAT IS FRICTION? When a solid slides over another solid surface, there is always resistance in motion. The resistance is called Friction. Friction is, therefore, the resistance that is experienced …