6th Standard CBSE Science Unit 10 Motion & Measurement of Distances Model Question Paper | QB365

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6th Standard CBSE Science Unit 10 Motion & Measurement of Distances Model Question Paper

Published on: 14/08/2019

Motion & Measurement of Distances

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Std: 6th Standard CBSE - Science

chapter: - Model Question paper

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Questions:

Generic 3

3 x 3 = 9

Boojho is not sure why we say that the distance of the stone from your hand is same when we whirl it around. Can you help him understand this? Remember that stone is held with string.

While measuring the length of a knitting needle, the reading of the scale at one end is 3 cm and at the other end is 33.1 cm. What is the length of the needle?

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

Generic 2

5 x 2 = 10

Give two examples of a periodic motion

Name any of the early modes of transport that are not in use today.

State an example of a rotational motion.

Name the motion exhibited by a freely falling stone.

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

Fill up / 1 Marks

5 x 1 = 5

Different modes of___________________ are used to go from one place to another.

10.

A plucked string of a sitar executes ________________motion.

11.

In rectilinear motion, object moves _________________a______________ line.

12.

Motion of an object or a part of it around a fixed point is known as __________motion.

13.

Motion of the needle of a sewing machine is ____________________

Match the following

5 x 1 = 5

14.

Circular motion

15.

Rotatory motion

16.

1 kilometre

17.

1 metre

18.

A moving wheel of a sewing machine

True or False

4 x 1 = 4

19.

The object which does not change its position time is said to be at rest.

(a)

False

(b)

True

20.

Motion of a wheel of a car is rectilinear as well as circular motion.

(a)

False

(b)

True

21.

An elastic tape cannot give a true measurement.

(a)

False

(b)

True

22.

One metre is equal to 1000 cm.

(a)

True

(b)

False

Multiple Choice Question

5 x 1 = 5

23.

A means of transport along water routes is :

(a)

Boat

(b)

Train

(c)

Bicycle

(d)

Bus

24.

1 metre is equal to :

(a)

10 cm

(b)

10 decimetre

(c)

10 decametre

(d)

None of these

25.

S.I. unit of length is

(a)

Centimetre

(b)

10mm

(c)

Metre

(d)

Kilometre

26.

A ball rolling on the ground represents

(a)

rectilinear motion

(b)

rotational motion

(c)

Both (a) and (b)

(d)

None of the above

27.

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

(a)

decametre

(b)

metre

(c)

centimetre

(d)

kilometre

Generic 5

2 x 5 = 10

28.

It is not accurate to measure a length with elastic tapes. Explain why.

29.

While travelling in a train, it appears that the trees near the track are moving whereas co-passengers appear to be stationary. Explain the reason.

1 Marks

2 x 1 = 2

30.

Name some objects having periodic motion.

31.

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?

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Answers Key:

Generic 3

3 x 3 = 9

Distance is actually defined as length or space between two places. It is clear from the diagram that when we whirl the stone, the space or length between points A and B, i.e. between hand and stone does not change.
Hence, distance is same.

Accurate scale r-eading begins from zero as shown below

But here the reading on scale begins with 3 cm
Thus, the error in the scale = 3 cm- 0 cm= 3 cm
Now, the other end on the scale reads = 33.1cm
Thus, the actual length of the needle = (Reading on the other end - Error reading of first end)
= 33.1 cm - 3 cm = 30.1 cm

There are mainly three modes of transport which are given below:
(i) Land transports Those transports that run on land are called land transports, e.g. bus and truck.
(ii) Water transports Those transports that run on water are called water transports, e.g. boat and ship.
(iii) Air transports Those transports that run in air are called air transports, e.g. aeroplane and helicopter.

Generic 2

5 x 2 = 10

The two examples of a periodic motion are motion of a pendulum and motion of a child on a swing.

Bullock cart, camel cart etc

Example of rotational motion is the motion of earth about its axis.

The motion exhibited by a freely falling stone is rectilinear motion

Rectilinear motion is the motion possessed by the vehicles on a straight road.

Fill up / 1 Marks

5 x 1 = 5

()
transport

10.

()
periodic oscillatory

11.

()
in, straight

12.

()
circular

13.

()
periodic motion

Match the following

5 x 1 = 5

14.

()
Potter's wheel

15.

()
Spinning top

16.

()
1000 metre

17.

()
10 decimetre

18.

()
Rotational motion

True or False

4 x 1 = 4

19.

(a)
False

20.

(a)
False

21.

(a)
False

22.

(b)
False

Multiple Choice Question

5 x 1 = 5

23.

(a)
Boat

24.

(b)
10 decimetre

25.

26.

27.

(d)
kilometre

Generic 5

2 x 5 = 10

28.

Elastic tapes are stretchable due to which their length can be increased during the measurement if it is not handle with care. Therefore, the measurement done by elastic tapes may be greater than the actual length of the object. So, we can say that elastic tapes are not accurate to measure a length.

29.

While travelling, trees near the track same to be moving back (i.e. opposite to the direction of motion of a train) because there is a relative motion between outside trees and moving train. While in case of co-passengers, the relative motion between we and co-passengers, is zero, so it appears to be stationary.

1 Marks

2 x 1 = 2

30.