$(a)$ Differentiate between uniform linear motion and uniform circular motion.
$(b)$ Write any four examples of uniform circular motion.
$(c)$ Is uniform circular motion an accelerated motion?

(N/A) In uniform linear motion,a body moves along a straight line with constant speed. In uniform circular motion,a body moves along a circular path with constant speed.
$(b)$ $(i)$ Motion of a point on the rim of a rotating wheel.
$(ii)$ Motion of a satellite around a planet.
$(iii)$ Motion of the Moon around the Earth.
$(iv)$ Motion of the tip of the second hand of a clock.
$(c)$ Yes,uniform circular motion is an accelerated motion. Although the speed remains constant,the direction of motion changes continuously at every point along the circular path. Since velocity is a vector quantity (speed with direction),a change in direction implies a change in velocity,which constitutes acceleration.