SHARMA CLASSES BHARATPUR

 

 

 

  Motion and Measurement of Distances   ·          In ancient times no means of transport were available people mainly travel by foot and carry luggage on their back ·          after domestication of animals human being start using horses, camels, elephants for transportation and carrying goods from one place to another ·          after inventions of steam engine as a new power source it lead to development of train, automobiles, motor ships as means of transport on water and land ·          after the invention electricity electric trains, aeroplane are used as new mode of transportation   Measurement: Measurement is the process of comparing the unknown quantity of an object to be measured with a standard unit of measurement   ·          The quantities like length mass volume time speed and temperature can be measured are called physical quantities ·           In early Times people use parts of their body to measure the length of object   Conventional Methods: Th