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Class 11 Vectors Note

Unit 1- Mechanics Chapter 2- Vectors Scalar quantity The physical quantities which have magnitude but not direction are called scalar quantities or scalar. Scalar quantities can be added or subtracted according to rule of algebra. Example: Mass, time, distance, speed, density, energy, temperature, pressure, charge, gravitational potential, electric potential energy etc. Vector quantity The physical…

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Class 11 Physical Quantities Notes

Unit 1- Mechanics Chapter 1 – Physical Quantities Measurement The process of comparing an unknown physical quantity with known fixed unit quantity is called measurement. Physical Quantity Those quantity which can be measured and can be expressed in numerical value are called physical quantity. Example : Mass, Length, Time etc A physical quantity is expressed…