Give the name of the motion possessed by the vehicles on a straight road.

2

(a)

State whether the hour hand of a wall clock is at rest or in motion.

2

(a)

Name the motion exhibited by a freely falling stone.

2

(a)

State how many kilometres are there in 1 metre.

2

(a)

Give the name of the device used to measure girth of a tree.

2

(a)

Mention some modes of transportation of ancient times.

2

(a)

Give the name of the motion that simple pendulum exhibits.

2

(a)

State one difference between circular motion and rotational motion.

2

(a)

During rolling of a ball, which type of motion is performed?

2

(a)

How can we use a string to measure distances less then the length of the string?

2

(a)

How would you decide whether an object is in motion or at rest? 

2

(a)

Name two devices that are used to measure length.

2

(a)

The height of a person is 1.965 m. Express it in cm and mm.

2

(a)

Give two examples of a periodic motion

2

(a)

Is air around us always transparent? Discuss.

2

(a)