Which of the following does not demonstrate consistent circular motion?

A clock has a continuously moving second's hand of $0.1 \mathrm{m}$ length. The average acceleration of the tip of the hand (in units of $\mathrm{m} {\mathrm{s}}^{-2}$) is of the order of :

Which of the following statements are correct in context of an object moving in uniform circular motion?

A. The direction of the motion changes at every point while moving in the circular path.

B. The motion of the object is an example of an accelerated motion.

In a _____ the size of the velocity vector changes, denoting a change in the magnitude of velocity.