A student observes the following five motions taking place around her:
PHYSICS · Subjective · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
A student observes the following five motions taking place around her:
(a) A ceiling fan running at a constant speed.
(b) A potter’s wheel that slows down gradually while turning in a circle.
(c) A child on a swing moving to and fro along an arc.
(d) A scooter negotiating a circular bend while its rider continuously increases the speed.
(e) A train moving straight on a level track at a constant speed.
For each motion listed above, state whether it is
(i) uniform circular motion,
(ii) non-uniform circular motion, or
(iii) not a circular motion at all.
Give one brief reason for every classification you make.