post

Introduction Work is said to be done when a force applied on an object causes displacement in the direction of the force.Energy is the capacity to do work. Work Conditions…

Introduction Gravitation is the force of attraction between any two objects having mass. It explains why objects fall towards the Earth and how planets move around the Sun. Universal Law…

Introduction A force is a push or pull that can change the shape, speed, direction, or state of rest or motion of an object. Forces are responsible for all types…

Introduction Motion refers to the change in position of an object with respect to time. An object is said to be in motion when its position changes compared to a…

Introduction A tissue is a group of similar cells that work together to perform a specific function. In multicellular organisms, tissues help in division of labour and increase efficiency. Types…

Introduction All living organisms are made up of cells. The cell is called the fundamental unit of life because it performs all vital life functions such as nutrition, respiration, growth,…

Introduction An atom is the basic unit of matter. It is made up of sub-atomic particles. Scientists developed different atomic models to explain the structure of the atom. Sub-Atomic Particles…

Introduction All matter is made up of tiny particles called atoms and molecules. Atoms combine to form molecules. This chapter explains the laws of chemical combination, atomic and molecular masses,…

Introduction Matter around us is usually not pure. Most substances we see are mixtures of two or more components. A pure substance contains only one type of particle and has…

Introduction Matter is anything that has mass and occupies space. Everything around us—solids, liquids, and gases—is made of matter. Matter can change its state with variations in temperature and pressure.…