Define the speed and velocity. What are their SI units ?

Define the term velocity. What is its SI unit ? Is it a scalar or vector quantity ?

Define the term wave velocity. Write its S.I. unit.

Define velocity. State its S.I. unit.

What is the SI unit of speed ?

What is the SI unit of speed ?

(a) Define velocity. What is the SI unit of velocity ? (b) What is the difference between speed and velocity ? (c ) Convert a speed of 54 km/h into m/s.

(a) Define density. What is the SI unit of density ? (b) Define relative density. What is the SI unit of relative density?

(a) Define speed. What is the SI unit of speed ? (b) What is meant by (i) average speed, and (ii) uniform speed ?