When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because:

A. the car has a uniform acceleration

B. the directions of car varies continuously.

C. the car travels unequal distances in equal time intervals

D. the car travels equal distances in unequal time intervals

The speed of a moving object is determined to be 0.12 m/s. This speed is equal to :

A. 2.16 km/h

B. 1.08 km/h

C. 0.432 km/h

D. 0.0216 km/h

A freely falling object travels 4.9 m in 1^st second, 14.7 m in 2^nd second, 24.5 m in 3^rd second, and so on. This data shows that the motion of a freely falling object is a case of:

A. uniform motion

B. uniform acceleration

C. no acceleration

D. uniform velocity

Which of the following statement is correct regarding velocity and speed of a moving body?

A. velocity of a moving body is always higher than its speed

B. speed of a moving body is always higher than its velocity

C. speed of a moving body is its velocity in a given direction

D. velocity of a moving body is its speed in a given direction.

Which of the following can sometimes be ‘zero’ for a moving body?

(i) average velocity

(ii) distance travelled

(iii) average speed

(iv) displacement

A. only (i) B. (i) and (ii)

C. (i) and (iv) D. only (iv)