Class 7 Science Chapter 8 MCQ

Class 7 Science Chapter 8 MCQ (Multiple Choice Questions) of Winds, Storms, and Cyclones updated for new academic session 2021-2022 free to use. After reading the NCERT Textbooks, one should do all the exercises questions given in NCERT.

Later on go for important questions and MCQ to clear all the doubts. These MCQs are important for the preparation of exams and class tests also.

Class 7 Science Chapter 8 MCQ for 2021-2022

Class: 7Science
Chapter: 8Winds, Storms, and Cyclones
Contents:MCQ with Answers and Explanation

MCQ Tests with Answers for Class 7 Science Chapter 8

Q1

Consider the following statements and choose the correct one:

[A]. The layer of air above the earth is called atmosphere.
[B]. About 99% of atmosphere is made up of just two gases nitrogen and oxygen.
[C]. The atmosphere exerts a pressure called atmospheric pressure due to the weight of air contained in it.
[D]. All the above.
Q2

A fire alarm usually detects smoke in case of fire. Where should such an alarm be placed in a room?

[A]. Near the door
[B]. On the floor
[C]. On any wall
[D]. On the ceiling
Q3

Tanu is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Tanu wants to take help from you:

[A]. Atmospheric pressure acts in downward directions.
[B]. We go to higher altitude the atmospheric pressure goes on decreasing.
[C]. The football gets inflated because the air filled in its exerts pressure.
[D]. None of the above.
Q4

Consider the following statements and choose the correct one:

[A]. Another type of force or pressure is exerted by air when it starts moving.
[B]. The force or pressure exerted by the moving air or wind is due to the kinetic energy processed by it.
[C]. Holes are usually made in hanging banners and hoardings so that high speed wind may pass through them without damaging.
[D]. All the above.
Q5

Anoop appeared in class test but he confused to know the incorrect statement. Would you help him to know that?

[A]. While riding a cycle, we find that it is easier to move the bicycle forward if the wind is coming from our back side.
[B]. While rowing a boat in the lake, we find it easier to row the boat forward if the wind is coming from behind us.
[C]. When we are flying a kite, then the wind coming from our back side helps.
[D]. If the wind blows in opposite direction to the motion of the object, it makes the movement of the object easier.




Q6

Indu is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:

[A]. When air is heated its volume increases and it occupies a bigger space.
[B]. When air gets cooled, then its volume decreases and it occupies a smaller space.
[C]. If the wind blows in same direction in which the object is moving, it makes the movement of object difficult.
[D]. None of the above
Q7

Which of the following statement is or are correct?

[A]. Air expands on heating.
[B]. Hot air is lighter than cold air.
[C]. Smoke always rises up.
[D]. All the above
Q8

Development and movement of cyclones are studied by the

[A]. Indian Postal Department
[B]. Indian Forensic Department
[C]. Indian Meteorological Department
[D]. Central Investigation Department
Q9

Which of these the best describes a tornado?

[A]. Strong thunderstorm
[B]. The eye of a cyclone
[C]. Rotating funnel of high speed with 10-15 km across
[D]. Rotating funnel of high speed with 10-200 m across
Q10

Read the sentences carefully and choose the correct one(s):

[A]. Wind is the movement of air which depends on the difference in air pressure in two regions.
[B]. Air moves from the region of high pressure to regions of low air pressure in the atmosphere.
[C]. Uneven heating on the earth in different regions is a main cause of wind movements.
[D]. All the above



Q11

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

[A]. If we blow air in the space between the two balloons from our mouth, they will come closer.
[B]. A cyclone alert is now issued 48 hours in advance of any expected storm
[C]. The direction of wind at a place is found by using an instrument called wind vane.
[D]. We should pressurized the rescue teams by making unnecessary demands at the time of any emergency.
Q12

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

[A]. The fast-moving air blowing over an object can also lift the object up by producing a region of low pressure above it.
[B]. The wind speed is measured by an instrument called anemometer.
[C]. Tornado can explode any building.
[D]. None of the above
Q13

Advance planning is required by the people living in the cyclone prone coastal areas are:

[A]. Do not ignore the cyclone warning issued by the Metrological Department.
[B]. Keep ready the telephone numbers of all the emergency services like police, fire brigade etc.
[C]. Make necessary arrangements to shift the essential household goods.
[D]. All the above.
Q14

Which of the following factor does not contribute to the development of a thunderstorm?

[A]. Temperature
[B]. Wind Speed
[C]. Humidity
[D]. Rotation of the earth
Q15

Safety measures should be taken by the government for the people living in cyclone prone coastal areas are:

[A]. Cyclones shelters should be constructed in cyclone prone coastal areas
[B]. An efficient cyclone forecast and warning service is essential to prevent cyclone related disasters
[C]. Government vehicles should be kept ready to evacuate people from their home.
[D]. All the above.



Q16

Dishu is doing his homework which is given by his teacher. Would you help him to choose the incorrect sentences?

[A]. A cyclone is called “typhoon” in the American continent.
[B]. The east coast of India is more vulnerable to cyclones.
[C]. The west coast in India is less vulnerable to cyclones.
[D]. None of the above.
Q17

Which of the following is not a characteristic of a thunderstorm?

[A]. Spark of light in atmosphere
[B]. Rapidly rotating winds
[C]. Loud noise
[D]. Heavy rains or hail
Q18

Cyclones cause widespread destruction and loss of life in coastal areas:

[A]. By producing extremely high-speed winds
[B]. By lifting the sea-water several meters high
[C]. By bringing torrential rains.
[D]. All the above.
Q19

The centre of a cyclonic storm called the “eye of cyclone” is an area of:

[A]. Very low air pressure
[B]. Moderate air pressure
[C]. Very high air pressure
[D]. Gradually rising air pressure
Q20

Which of the following statement is or are correct?

[A]. A cyclone is a huge revolving storm caused by very high-speed winds.
[B]. The centre of cyclone is called the “eye” of the cyclone.
[C]. Factors like wind speed and wind direction contribute to development of cyclone.
[D]. All the above.



Q21

Precautions should not be taken during a thunderstorm:

[A]. We should not sit near window during lightning.
[B]. Open garages, storage sheds are safe place to take shelter during lightning.
[C]. We should not take shelter under an isolated and tall tree.
[D]. A car or a bus is a safe place to take shelter during lightning
Q22

During a wind storm, when high speed winds blow over the tin roofs of the house, the tin roofs get lifted and blown away. This happens because:

[A]. High speed winds reduce air pressure over the tin roofs and high-speed winds increase air pressure over the tin roofs.
[B]. High speed winds increase air pressure over the tin roofs and high-speed winds do not change air pressure over the tin roofs
[C]. High speed winds reduce air pressure over the tin roofs and higher air pressure acts from below the tin roofs.
[D]. Higher air pressure acts from below the tin roofs.
Q23

Read the following sentences carefully, and choose the incorrect one:

[A]. Tornado lifts people and vehicles off the ground and hurls them hundreds of metres away.
[B]. The wind speed in a tornado may reach up to 300 kilometre per hour.
[C]. Tornados cause much damage from the sheer force of its high-speed wind.
[D]. Tornado is a silent storm with O-shaped dark column of rotating winds and clouds that reaches from the sky to the ground.
Q24

Which of the following region is more vulnerable to cyclonic storms?

[A]. Northern Hills of India
[B]. Western deserts of India
[C]. East Coast of India
[D]. West Coast of India
Q25

Precaution should be taken for protection during a tornado:

[A]. Stay away from fallen electric wires and stay out of damaged areas.
[B]. If a person is in a vehicle when a tornado begins, he should get out of the vehicle and go to a ditch or low-lying area and lie flat in it.
[C]. Bend down on your knees and protect your head and neck using your arms under a sturdy place in your house.
[D]. All the above.

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