State whether speed is a scalar or a vector quantity. Give reason for your choice.

Fill in the following blanks with suitable words:

(a) _______ is a vector quantity whereas ________is a scalar quantity.

(b) The physical quantity which gives both, the ___ and _____ of motion of a body is called its velocity.

(c) A motorcycle has a steady acceleration Of 3 m/s². This means that every second its ………increases by ………… .

(d) ___________ is the rate of change of displacement. It is measured in m/s.

(e) ____________ is the rate of change of velocity . It is measured in ………………… .

What type of motion, uniform or non-uniform, is exhibited by a freely falling body? Give reason for your

Bus X travels a distance of 360 km is 6 hours. Whereas bus Y travels a distance of 427 km in 7 hours. Which bus travels faster?

Arrange the following speeds in increasing order (keeping the least speed first) :

(i) An athlete running with a speed of 20 m/s.

(ii) A bicycle moving with a speed of 400 m/min.

(iii) A scooter moving with a speed of 60 km/h.