What is straight line motion?

What is motion?

Motion of a child on a swing is_________________

Five kilometre is ___________m

One metre is _________cm.

100 millimetre

100 decametre

1 metre

A moving swing

A moving wheel of a sewing machine

The SI unit of distance is cm.

An elastic tape cannot give a true measurement.

From a broken meter scale, measurement can be done from zero mark.

Motion of earth about its own axis is rotatory.

One metre is equal to 1000 cm.

Find the odd one out:

Curved length can be measured by :

Paheli moves on a straight road from point A to point G. She takes 20 min to cover a certain distance AB and 30 min to cover the rest of distance BG. She then turns back and takes 30 min to cover the distance GB and 20 min to cover the rest of the distance to her starting point. She makes 5 rounds on the road of the same way. Paheli concludes that her motion is

Which of the following does not express a time interval?

The distance between Delhi and Mumbai is usually expressed in the unit of

Name some objects having periodic motion.

While playing a kite you observe the kite motion will not be in the same direction. Why?

When a fan is rotating , we observe the blades are rotating in opposite direction. Why?

You have seen your father playing violin.While playing it, you observed that the strings. Are creating the sound.Can you tell due to what motion it si giving the sound?

You are given a cotton thread and a wool thread. Which thread can be used to measure the length of an object and why?