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CBSE Questions for Class 6 Physics Motion And Measurement Of Earth Quiz 6 - MCQExams.com
CBSE
Class 6 Physics
Motion And Measurement Of Earth
Quiz 6
Which among the following is in motion?
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Clock
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Hands of the clock
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Both of them
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None of them
Explanation
Clock is at rest.
The hands of a clock are in motion.
Which of the following are the greatest inventions of all time?
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Car
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Boat
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Airplane
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Wheel
Explanation
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.
Place them in the correct order - from the earliest modes of transport to the most recent ones.
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bus, bullock cart, bicycle, airplane, trains, ship.
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airplane, bus, bicycle, ship, trains, bullock cart.
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bullock cart, ship, trains, bicycle, bus, airplane.
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ship, bullock cart, trains, bicycle, airplane, bus
Explanation
The correct order is - bullock cart, ship, trains, bicycle, bus, airplane.
An electric fan switched on in your room is said to be in motion, even though the fan is fixed to the ceiling. It is because:
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Fan is moving from place to place
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The blades of fan changes its position with time
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Both $$A$$ and $$B$$
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None of these
Explanation
In a circular motion, an object moves such that its distance from a fixed point remains the same. For example, the blades of a fan.
An electric fan switched on in your room is said to be in motion, even though the fan is fixed to the ceiling because the blades of the fan change their position with time. It will move in a circular motion.
The invention of wheels were used to make transport vehicles such as
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Airplane
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Bullock carts
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Automobiles
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All of the above
Explanation
The invention of wheels were used to make transport vehicles such as Airplane,
Bullock carts, Automobiles.
Boat is a means of
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Water transport
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Rail transport
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Air transport
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Land Transport
Explanation
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
In ancient times, the means of transport used were
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Foot or animals
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Carried goods on themselves
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Boats for transport along water routes
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All of the above
Explanation
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.
Early humans traveled by car
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True
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False
Explanation
The statement is False.
Early humans used animals as a means of transport.
Which of the following are used as a mode of transport on land?
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Automobiles
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Ships
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Bullock cart
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Airplane
Explanation
Automobiles, Bullock cart.
Automobiles: This type of transportation is mostly used for example car, bus, truck, etc.
A bullock cart or ox cart (sometimes called a bullock carriage when carrying people in particular) is a two-wheeled or four-wheeled vehicle pulled by oxen. It is a means of transportation used since ancient times in many parts of India.
Which of the following are used as a mode of transport on water?
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Airplane
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Motorboat
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Automobile
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All of the above
Explanation
Motorboat are used as a mode of transport on water.
Which of the following are used as a mode of transport on air?
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BMW Bike
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Helicopter
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Train
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Motorboat
Explanation
Helicopters are used as a mode of transport on air.
In the beginning of the $$19^{th}$$, the invention of _________ introduced a new source of power.
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Wheel
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Cars
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Steam engine
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Bikes
Explanation
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.
Railroads were made for steam engine driven carriages and wagons
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True
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False
Explanation
The statement is True.
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?
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$$(a)$$
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$$(b)$$
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Both $$(a)$$ and $$(b)$$
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None of these
Explanation
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 $$(14.3-1.0)\ cm = 13.3\ cm$$.
What care should be taken while taking the measurement using a scale?
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Place the scale in contact with the object along its length
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Use a scale with a broken edge
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Your eye must be exactly in front of the point where the measurement is to be taken
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All of the above
Explanation
The following care must be taken while taking measurements using a meter scale.
Place the scale in contact with the object along its length
Your eye must be exactly in front of the point where the measurement is to be taken.
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?
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10 cm
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12.8 cm
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8.8 cm
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Cannot be measured.
Explanation
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
One end of the scale has reading 3.5 cm and the other end has 15 cm. What is the actual value of the measurement?
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0 cm
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11.5 cm
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3.5 cm
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15 cm
Explanation
Actual value of measurement= Final end's reading - Initial end's reading
=15 cm - 3.5 cm
= 11.5 cm
Water transport is the fastest mode of transport.
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True
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False
Explanation
False. Air transport is the fastest mode of transport.
Which of the following is an example of non-uniform motion?
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A train in motion
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A horse in a race
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A car covering equal distances in equal time
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None of these
Explanation
A train in motion and a horse in a race cover unequal distances in same time intervals because they are increasing their speed from time to time and are thus said to be in non-uniform motion, hence options $$A$$ and $$B$$ are correct.
Since car is covering equal distances in equal time intervals it is said to be in uniform motion.
Which of the following ancient modes of transport are still used?
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Trams
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Rockets
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Tonga/Tanga
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None
Explanation
A tram is a train that runs on a tramway tracks on public urban streets; some include segments of segregated right-of-way. The lines or networks operated by tramcars as public transport are called tramways or simply tram/streetcar. Many recently built tramways use the contemporary term light rail.
A tonga or tanga is a light carriage or curricle drawn by one horse used for transportation in the Indian subcontinent. They have a canopy over the carriage with a single pair of large wheels. The passengers reach the seats from the rear while the driver sits in front of the carriage.
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