Numerical Problems 7.1 A wooden block measuring 40 cm x 10 cm x 5 cm has a mass 850 g. Find the density of 3 wood. (425 kgm – 3) Solution: volume of wooden block = V = 40 cm x 10 cm x 5cm = 2000 cm3...
Short Questions 7.2. How kinetic energy molecular model of matter helps differentiate various states of matter? Ans: Kinetic Molecular Model of Matter: The matter is made up of particles called molecules. The molecules remain in continuous motion....
Notes Q1. Describe briefly about the matter? Ans: Matter exists in three states, solid, liquid and gas. There are many properties associated with matter. For example, the matter has weight and occupies space. There are some other properties...
