Answer the following questions related to scalar and vector quantities.
a. (a) Define (i) a scalar quantity and (ii) a vector quantity.
b. (b) Define distance and displacement in one–dimensional motion.
c. (c) State any two differences between distance and displacement.
d. (d) From the list below, identify which quantities are scalars and which are vectors: mass, velocity, temperature, momentum, power, acceleration. Give one brief reason for each classification.