## Class 6 - Science

#### Motion and Measurement of Distances

Q&A
Question:

Name the types of motion in which a body moves along a straight path

Rectilinear or linear motion.

Motion and Measurement of Distances - Questions
1.

Give two examples each of modes of transport used on land, water and air.

2.

How many centimetres are there in 1 m?

3.

Give the unit for measuring the following:
(a) Distance between Delhi and Jaipur.
(b) Thickness of a coin.
(d) Length of your shoe lace.

4.

Give two examples of periodic motion.

5.

Name the measuring device which can be used for measuring the girth of a tree.

6.

Name the types of motion in which a body moves along a straight path

7.

State two precautions to be observed while measuring length with the help of a metre scale.

8.

How can a measured length be expressed?

9.

Why do we need standard unit for measurement?

10.

Give two examples for each of the following motions:
(i) Linear motion
(ii) Spinning motion
(iii) Oscillatory motion
(iv) Periodic motion
(v) Vibrational motion
(vi) Circular motion
(vii) Random motion

11.

Why can hand span and arm length not be used as standard units of length?

12.

Why can a pace or a footstep not be used as a standard unit of length?

13.

Are senses reliable for accurate measurement?

14.

Name the device used to measure the following:
(e) Cloth for curtain.
(f) Circumference of round table.

15.

What type of motion do the following objects have?
(a) the galloping of a horse
(b) the needle of a sewing machine
(c) the movements of a mosquito
(d) the blades of an electric fan
(e) the smoke from a lighted dhoopbatti
(f) wheels of moving car.

16.

The height of a person is 1.65 m. Express it in cm and mm.

17.

Give an example of circular motion.

18.

Define rest and motion.

19.

Fill in the blanks:
(i) One metre is___________
(ii) Five kilometre is___________
(iii) Motion of a child on a swing is_____________ .
(iv) Motion of the needle of a sewing machine is_______________ .
(v) Motion of wheel of a bicycle is_____________ .

20.

The distance between Radha's home and her school is 3250 ,m. Express this distance in km.

21.

While measuring the length of a knitting needle, the reading of the scale at one    end is 3.0 cm and at the other end is 33.1 cm. What is the length of the needle?

22.

Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.

23.

Find the length and breadth of given rectangle in mm and cm.

24.

Define the term standard unit.

25.

Arrange the following lengths in their increasing magnitude :
1 metre, 1 centimetre, 1 kilometre, 1 millimetre.

26.

Why could you not use an elastic measuring tape to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with an elastic tape?

27.

Give one example each of the following types of motion:

(a) Linear
(b) Translation
(c) Circular
(d) Periodic.

28.

Give one example of linear motion.

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