- Transport – Movement of people, animal, or goods from one place to another
- Means of transport – Road transport, water transport, air transport
- Earlier people use to walk to move one place to another
- The with inventions they started travelling and transporting using boats, bullock cart, etc
- With the help of science and technology nowadays it is possible to travel and transport using aeroplanes, huge ships, cars and buses, which allows to move long distances in small amount of time
- Unit and measurement
1 kilometer = 1000 metre
1 metre = 100 centimetre
1 centimetre = 10 millimetre - Watch complete video on correct measurement of length here
- Motion and types of motion
- Rectilinear motion – Motion in which object moves in a straight line is rectilinear motion. E.g. children running in the race, object falling on the ground
- When an object move in a circular path is called circular motion. E.g. rotation of clock, children racing on circular path
- Motion in which object repeats its motion after some time is periodic motion. E.g. swing of pendulum.
Textbook simplified in Videos