Motion and Measurement of Distances Test

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Motion and Measurement of Distances Test - 23

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Question 1
1 / -0

How do we decide whether an object is in motion or at rest?

A
If an object changes its position with time, it is in motion.

B
If an object does not change its position with time, it is at rest.

C
Option A and B are correct

D
Option A and B are wrong
Solution
We decide whether an object is in motion or at rest based on -
1. If an object changes its position with time, it is in motion.
2. If an object does not change its position with time, it is at rest.
Hence, option C is correct.
Question 2
1 / -0

Which among the following is in motion?

A
Clock

B
Hands of the clock

C
Both of them

D
None of them

Solution

Clock is at rest.
The hands of a clock are in motion.
Question 3
1 / -0

Which of the following are the greatest inventions of all time?

A
Car

B
Boat

C
Airplane

D
Wheel

Solution

THE WHEEL is often described as the most important invention of all time – it had a fundamental impact on transport and later on agriculture and industry.
The idea was quickly adapted for other uses – in particular on wagons and chariots.
For thousands of years, people used sledges to drag heavy loads.
But the realisation that a round object will move more freely led to invention of wheel.
So a wheel is probably the greatest fundamental invention in history of transport.
Question 4
1 / -0

Boat is a means of

A
Water transport

B
Rail transport

C
Air transport

D
Land Transport

Solution

Water transportation described as the movement of people and freight by boat, ship, barge or sailboat across ocean, sea, lake, canal, or river, or through other modes of water transportation.
Hence Boat is a means of Water transport
Question 5
1 / -0

In the beginning of the $$19^{th}$$, the invention of _________ introduced a new source of power.

A
Wheel

B
Cars

C
Steam engine

D
Bikes

Solution

Until the beginning of the 19th century, people still depended on animal power to transport them from place to place. The invention of steam engine introduced a new source of power. Railroads were made for steam engine driven carriages and wagons.
Question 6
1 / -0

Rohan was asked to measure the length and breadth of the box by his teacher. He used a metre scale for measurement and placed the scale as shown in the diagram. Which is this the correct way of measuring the box?

A
$$(a)$$

B
$$(b)$$

C
Both $$(a)$$ and $$(b)$$

D
None of these

Solution

If the ends may be broken. We may not be able to see the zero mark clearly. In such cases, we should avoid taking measurements from the zero mark of the scale. We can use any other full mark of the scale, say, $$1.0\ cm$$. Then we must subtract the reading of this mark from the reading at the other end. For example, in fig. (b) the reading at one end is $$1.0\ cm$$ and at the other end it is $$14.3\ cm$$. Therefore, the length of the object is $$(14.3-1.0)\ cm = 13.3\ cm$$.
Question 7
1 / -0

Pooja had to find the area of a box. So to find the length and breadth she used a metre scale.But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8 cm.
What is the length measured?

A
10 cm

B
12.8 cm

C
8.8 cm

D
Cannot be measured.

Solution

The length will be 8.8 cm.
If zero mark is not visible, you can use any other full mark on the scale and then subtract the reading of this mark from the reading at the other end.
10.8 - 2 = 8.8 cm
Question 8
1 / -0

In ancient times, the means of transport used were

A
Foot or animals

B
Carried goods on themselves

C
Boats for transport along water routes

D
All of the above
Solution
In ancient times, the means of transport used were
- Foot or animals as people used to travel by walking or by riding on animals such as horses .
- Carried goods on their own and walking with these luggages.
- Boats were used for transport along water routes to go from one port to another.
Question 9
1 / -0

Which of the following are used as a mode of transport on water?

A
Airplane

B
Motorboat

C
Automobile

D
All of the above

Solution

Motorboat are used as a mode of transport on water.
Question 10
1 / -0

Which of the following are used as a mode of transport on air?

A
BMW Bike

B
Helicopter

C
Train

D
Motorboat

Solution

Helicopters are used as a mode of transport on air.

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Motion and Measurement of Distances Test - 23

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Motion and Measurement of Distances Test - 23

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Question 1

If an object changes its position with time, it is in motion.

If an object does not change its position with time, it is at rest.

Option A and B are correct

Option A and B are wrong

Solution

Question 2

Clock

Hands of the clock

Both of them

None of them

Solution

Question 3

Car

Boat

Airplane

Wheel

Solution

Question 4

Water transport

Rail transport

Air transport

Land Transport

Solution

Question 5

Wheel

Cars

Steam engine

Bikes

Solution

Question 6

$$(a)$$

$$(b)$$

Both $$(a)$$ and $$(b)$$

None of these

Solution

Question 7

10 cm

12.8 cm

8.8 cm

Cannot be measured.

Solution

Question 8

Foot or animals

Carried goods on themselves

Boats for transport along water routes

All of the above

Solution

Question 9

Airplane

Motorboat

Automobile

All of the above

Solution

Question 10

BMW Bike

Helicopter

Train

Motorboat

Solution

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