1. Classify the following as motion along a straight line, circular or oscillatory motion:
(i) Motion of your hands while running.
(ii) Motion of a horse pulling a cart on a straight road.
(iii) Motion of a child in a merry-go-round.
(iv) Motion of a child on a see-saw.
(v) Motion of the hammer of an electric bell.
(vi) Motion of a train on a straight bridge.
(i) Oscillatory motion
While running, our hands move back and forth direction and repeat their movement after some time. Hence it is an oscillatory motion.
(ii) Motion along the straight line-
A horse is pulling a cart on a straight road. Therefore it follows the motion along a straight line.
(iii) Circular motion-
Since the marry-go-round moves in a circular path.
(iv) Oscillatory motion-
The see-saw moves up and down continuously. Hence it is an oscillatory motion.
(v) Oscillatory motion
The hammer in an electric bell moves to and fro, so it is an oscillatory motion.
(vi) Motion along a straight line-
The train is moving on a straight bridge. Therefore it follows the motion along the straight line.