Identify the type of motion of a child on a swing.
Which of the given options correctly defines the motion of a child sitting on a swing that moves forward and backward?
Fill in the blanks:
(i) One metre is ______________ cm.
(ii) Five kilometres is ______________ m.
(iii) Motion of a child on a swing is ______________.
(iv) Motion of the needle of a sewing machine is ______________.
(v) Motion of wheel of a bicycle is______________.