Thermodynamics Notes for Class 11 – 12 Principle of Measurement of Temperature Thermometric Property The property of any matter that can be used for measuring temperature is called thermometric property. Examples of thermometric properties are altitude of liquid in a capillary tube, pressure of gas in constant volume or a certain volume of gas in … Read more
Static Electricity Notes for Class 11 – 12 Charge Charge is the distinct property of fundamental particles that electrifies an object. Types of charge There are two types of charges. They are a) positive charge and b) negative charge. Properties of Charge ⇒Like charges repeal each other. ⇒Unlike charges attract each other. Coulomb’s Law The … Read more
Explain the acceleration of a falling body. The acceleration of a falling body is a perfect example of uniform velocity. Due to gravity, the acceleration of a freely falling body is 9.8 ms⁻². If we drop a body from the air its velocity increases by 9.8 ms⁻¹ in 1st second. Again, its velocity increases by … Read more
Space, time, and mass in physics Classical mechanics is known as Newtonian mechanics. In this mechanics concept of three fundamental quantities has been considered. These are space, time, and mass. Space: According to Newton, space is an absolute quantity that exists in itself. It is not related to any outer or external thing and is … Read more
Meaning of Concept, Law, Principle, Postulates, Hypothesis and Theory in Physics What is Concept? The correct realisation or understanding of a subject is to have a clear idea about that subject. Or, concept is an idea or thought or a general opinion. For example, the idea of heat is a form of energy which when … Read more
Physical World and Measurement Class 11 Notes Nature of the physical world The world that is composed of materials that have no life is called the physical world. That means the world consisting of brick, stone, iron, gold, earth, etc is called the physical world. Four elements of the physical world The physical world basically … Read more
What is a purple alert? A Purple Alert is for missing adults with mental, cognitive, intellectual or developmental disabilities, not related to substance abuse or Alzheimer’s or dementia-related disorders, which are in the Silver Alert section. Notifications go to the media, road signs, lottery terminals and those who have signed up. “It’s like bringing it … Read more
Who is Mona Hammond? Mona Hammond OBE was a Jamaican-British actress and co-founder of the Talawa Theatre Company. Born in Tweedside, Jamaica, Hammond immigrated to the United Kingdom in 1959, where she lived for the rest of her life. Hammond had a long and distinguished stage career. Born: January 1, 1931, Clarendon, Jamaica. Died: July … Read more