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Winds, Storms and Cyclones Class 7 MCQs Questions with Answers
Solving the Winds, Storms and Cyclones Multiple Choice Questions of Class 7 Science Chapter 8 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Winds, Storms and Cyclones Class 7 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 8 Science Class 7 and cross-check your answers during preparation.
Question 1.
Winds currents generated by uneven heating between the equator and the:
(a) Moon
(b) Poles
(c) Sun
(d) Stars
Answer
(b) Poles
Winds currents generated by uneven heating between the equator and the poles
Question 2.
Smoke is hotter and lighter than:
(a) water
(b) heat
(c) air
(d) none of these
Answer
(c) air
Smoke is hotter and lighter than air.
Question 3.
The India Meteorological department forecasts cyclones with the help of:
(a) Rohini satellite
(b) Aryabhatta satellite
(c) INSAT satellite
(d) None of these
Answer
(c) INSAT satellite
The India Meteorological department forecasts cyclones with the help of INSAT satellite.
Question 4.
The heated air that rises up gets cooled and sinks which cause the:
(a) conduction currents
(b) radiation
(c) convection currents
(d) none of these
Answer
(c) convection currents
The heated air that rises up gets cooled and sinks which cause the convection currents.
Question 5.
A natural hazard causing destruction is called a:
(a) natural disaster
(b) cyclone
(c) thunderstorm
(d) none of these
Answer
(a) natural disaster
A natural hazard causing destruction is called a natural disaster.
Question 6.
Who among the following was the first to observe that whenever air moves its pressure drop ?
(a) Galileo
(b) Bernoulli
(c) Newton
(d) Guericpe
Answer
(b) Bernoulli
Bernoulli was the first to observe that whenever air moves its pressure drop ?
Question 7.
Which of the following natural disasters is characterized by thunder and lightning ?
(a) Drought
(b) Flood
(c) Thunderstorm
(d) Cyclone
Answer
(c) Thunderstorm
Thunder storm is characterized by thunder and lightning.
Question 8.
An alternative name of natural disaster is:
(a) natural calamity
(b) storm
(c) cyclone
(d) tornado
Answer
(a) natural calamity
An alternative name of natural disaster is natural calamity.
Question 9.
An intense whirl in the atmosphere with very strong winds in known as:
(a) natural calamity
(b) storm
(c) cyclone
(d) tornado
Answer
(c) cyclone
An intense whirl in the atmosphere with very strong winds is known as cyclone.
Question 10.
Which of the following States of India is prone to be hit by a cyclone ?
(a) Orissa
(b) Haryana
(c) Uttar Pradesh
(d) Rajasthan
Answer
(a) Orissa
Orissa is prone to be hit by a cyclone.
Question 11.
Air exerts pressure in:
(a) sideways only
(b) downward direction only
(c) upward direction only
(d) all directions
Answer
(d) all directions
Air exerts pressure in all directions.
Question 12.
Air expands on:
(a) heating
(b) cooling
(c) drying
(d) none of these
Answer
(a) heating
Air expands on heating.
Question 13.
The calm centre of cyclone is:
(a) Eye
(b) Nose
(c) Skin
(d) None of these
Answer
(a) Eye
The calm centre of cyclone is eye.
Question 14.
Winds are expected to blow towards the equator, at a latitude of:
(a) 40°N
(b) 30°N
(c) 20°N
(d) None of these
Answer
(c) 20°N
Winds are expected to blow towards the equator, at a latitude of 20°N.
Question 15.
When we go up in the atmosphere, the air pressure:
(a) increases
(b) reduces
(c) both (a) and (b)
(d) none of these
Answer
(b) reduces
When we go up in the atmosphere, the air pressure reduces.
Question 16.
A cyclone is a:
(a) violent storm
(b) weak storm
(c) slow
(d) none of these
Answer
(a) violent storm
A cyclone is a violent storm.
Question 17.
Which of the following place is unlikely to be affected by a cyclone ?
(a) Chennai
(b) Mangalore
(c) Amritsar
(d) Puri
Answer
(c) Amritsar
Amritsar is unlikely to be affected by cyclone.
Question 18.
What step is to be taken for helping neighbours during cyclones ?
(a) Moving them to cyclone shelters
(b) Shifting their household properties to safer places
(c) Providing them medical aid
(d) All of the above
Answer
(d) All of the above
All the steps given above is to be taken for helping neighbours during cyclones.
Question 19.
How many hours in advance cyclone chart in issued of expected storms by satellites and radars ?
(a) 72
(b) 48
(c) 96
(d) 12
Answer
(b) 48
48 hours is used in advance in cyclone chart to expected storms by satellites and radars.
Question 20.
A disaster fell on Orissa in India on:
(a) 22 Oct., 1999
(b) 29 Oct., 1999
(c) 18 Oct., 1999
(d) None of these
Answer
(c) 18 Oct., 1999
A disaster fell on Orissa in India in 18 Oct, 1999.
Question 21.
Second cyclone hit Orissa on:
(a) 22 Oct., 1999
(b) 29 Oct., 1999
(c) 18 Oct., 1999
(d) None of these
Answer
(b) 29 Oct., 1999
Second cyclone hit Orissa in 29 Oct, 1999.
Question 22.
The number of homeless people hit by cyclone was:
(a) about 30,000 people
(b) about 60,000 people
(c) about 80,000 people
(d) about 70,000 people
Answer
(d) about 70,000 people
The no. of homeless people hit by cyclone was about 70,000.
Question 23.
Which modern technologies have made easier to monitor cyclones?
(a) Radar and satellites
(b) Anemometer
(c) Radio and Television
(d) Television and satellites
Answer
(a) Radar and satellites
Radar and satellites modern technologies have made easier to monitor cyclones.
Question 24.
When is a cyclone warning issued
(a) 48 hours in advance
(b) 32 hours in advance
(c) 24 hours in advance
(d) 42 hours in advance
Answer
(c) 24 hours in advance
Cyclone warning is issued 24 hours in advance.
Question 25.
What can be the maximum speed of tornado ?
(a) 30 km/hr
(b) 300 km/hr
(c) 3000 km/hr
(d) 3 km/hr
Answer
(b) 300 km/hr
300 km/hr is maximum speed of tornado.
Question 26.
We nil air into bicycle tubes to keep the tyre:
(a) tight
(b) loose
(c) heavy
(d) big
Answer
(a) tight
We fill air into bicycle tubes to keep the tyre tight.
Question 27.
Air has:
(a) force
(b) force when it is cold
(c) no force
(d) force when it is hot
Answer
(a) force
Air has force.
Question 28.
When a balloon deflates then:
(a) there is low sound
(b) there is loud sound
(c) no sound
(d) none of these
Answer
(b) there is loud sound
When ballon deflates then there is loud sound.
Question 29.
Hot air compared to cold air is:
(a) heavy
(b) lighter
(c) same
(d) none of these
Answer
(b) lighter
Hot air compare to cold air is lighter.
Question 30.
Speed winds are accompanied by:
(a) increased air pressure
(b) reduced air pressure
(c) there is no change in air pressure
(d) none of these
Answer
(b) reduced air pressure
Speed winds are accompanied by reduce air pressure.
Question 31.
Air moves:
(a) from the region where the air pressure is high to the region where the pressure is low
(b) from the region where the air pressure is low to the region where the pressure is high
(c) any where
(d) none of these
Answer
(a) from the region where the air pressure is high to the region where the pressure is low
Air moves from the region where the air pressure is high to the region where the pressure is low.
Question 32.
A storm is marked by:
(a) thunder and lightning
(b) flood
(c) water cycle
(d) storm
Answer
(a) thunder and lightning
A storm is marked by thunder and lightening.
Question 33.
The amount of water on the earth remains more or less the same because of:
(a) thunder
(b) flood
(c) water cycle
(d) all of the above
Answer
(c) water cycle
Amount of water on the earth remains more or less the same because of water cycle.
Question 34.
A dark funnel-shaped cloud that reaches from the sky to the ground is:
(a) cyclone
(b) tornado
(c) hurricane
(d) none of these
Answer
(b) tornado
A dark funnel-shaped like cloud that reaches from the sky to the ground tornado.
Question 35.
A name given to cyclone in American continent is:
(a) tornado
(b) hurricane
(c) typhoon
(d) none of these
Answer
(b) hurricane
A name given to the cyclone in American continent is hurricane.
Question 36.
A name give to cyclone in Philippines and Japan is:
(a) tornado
(b) hurricane
(c) typhoon
(d) none of these
Answer
(c) typhoon
A name given to cyclone in Philippines and Japan is Typhoon.
Question 37.
The instrument used to measure wind speed is:
(a) barometer
(b) anemometer
(c) rain guage
(d) none of these
Answer
(b) anemometer
The instrument used to measure wind speed is anemometer.
Question 38.
Cyclones:
(a) damages houses
(b) reduces the fertility of soil
(c) damages trees
(d) all of these
Answer
(d) all of these
Cyclones damages houses, damages trees and reduces the fertility of soil.
Question 39.
The factors which contribute to the development of cyclones is:
(a) wind speed
(b) temperature, humidity
(c) wind direction
(d) all of these
Answer
(d) all of these
The factors which contribute to development of cyclones is wind speed, wind direction and temperature, humidity.
Question 40.
When water changes from liquid to vapour state then water requires:
(a) wind
(b) heat
(c) air
(d) none of these
Answer
(b) heat
When water changes from liquid to vapour state then water requires heat.
Question 41.
The moving air is called:
(a) wind
(b) heat
(c) air
(d) none of these
Answer
(a) wind
The moving air is called wind.
Question 42.
A formation of a very low pressure system with very high speed winds revolving around it is called
(a) wind
(b) thunderstorm
(c) cyclones
(d) none of these
Answer
(c) cyclones
A formation of a very low pressure system with very high speed winds revolving around it is called cyclones.
Question 43.
A swift movement of the falling water droplets along with the rising air and creating lightning and sound is:
(a) wind
(b) thunderstorm
(c) cyclone
(d) none of these
Answer
(b) thunderstorm
A swift movement of the falling water droplets along with the rising air and creating lightning and sound is thunder storm.
Question 44.
The winds which flow from the oceans towards the land is:
(a) monsoon winds
(b) storm
(c) cyclones
(d) none of these
Answer
(a) monsoon winds
The winds which flow from the oceans towards the land is monsoon winds.
Question 45.
Monsoon carry water and it starts:
(a) wind
(b) storm
(c) rain
(d) none of these
Answer
(c) rain
Monsoon carry water and it starts rain.
Question 46.
Rain may cause excess water everywhere which is called:
(a) flood
(b) air
(c) cyclone
(d) none of these
Answer
(a) flood
Rain may cause excess water everywhere which is called flood.
Question 47.
Floods may occur which destroys:
(a) vegetation
(b) property
(c) life
(d) all of these
Answer
(d) all of these
Floods may occur which destroys vegetation, property and life.
Question 48.
The direction of the wind gets reversed, it flows from the land to the ocean in:
(a) summers
(b) winters
(c) monsoons
(d) none of these
Answer
(b) winters
The direction of the wind gets reversed, it flows from the land to the ocean in winters.
Question 49.
Near the equator the land warms up faster in:
(a) summer
(b) winter
(c) monsoon
(d) none of these
Answer
(a) summer
Near the equator the land warms up faster in summer.
Question 50.
Most of the time, the temperature of the land is higher than that of the water in the:
(a) oceans
(b) rivers
(c) lakes
(d) sea
Answer
(a) oceans
Most of time, the temperature of the land is higher than that of the water in the oceans.
Match Column A with Column B:
Question 1.
| Column- A | Column- B |
| (a) In India cyclone hits | (i) 29 Oct., 1999 |
| (b) First cyclone hit Orissa on | (ii) 70,000 people |
| (c) Second cyclone hit Orissa on | (iii) 18 Oct., 1999 |
| (d) The homeless people hit by cyclone | (iv) Orissa |
Answer
| Column- A | Column- B |
| (a) In India cyclone hits | (iv) Orissa |
| (b) First cyclone hit Orissa on | (iii) 18 Oct., 1999 |
| (c) Second cyclone hit Orissa on | (i) 29 Oct., 1999 |
| (d) The homeless people hit by cyclone | (ii) 70,000 people |
Question 2.
| Column- A | Column- B |
| (a) Winds carry water and bring rain | (i) Hurricane |
| (b) Speed of wind is measured by | (ii) Monsoon |
| (c) A dark funnel shaped cloud | (iii) Anemometer |
| (d) In American continent | (iv) Tornado |
Answer
| Column- A | Column- B |
| (a) Winds carry water and bring rain | (ii) Monsoon |
| (b) Speed of wind is measured by | (iii) Anemometer |
| (c) A dark funnel shaped cloud | (iv) Tornado |
| (d) In American continent | (i) Hurricane |
Question 3.
| Column- A | Column- B |
| (a) Cyclone alert issued | (i) wind |
| (b) Cyclone warning issued | (ii) 300 km/hr |
| (c) Maximum speed of tornado | (iii) 48 hrs. in advance |
| (d) Moving air | (iv) 24 hrs. in advance |
Answer
| Column- A | Column- B |
| (a) Cyclone alert issued | (iii) 48 hrs. in advance |
| (b) Cyclone warning issued | (iv) 24 hrs. in advance |
| (c) Maximum speed of tornado | (ii) 300 km/hr |
| (d) Moving air | (i) wind |
State whether the following statements are ‘True’ or ‘False’:
Question 1.
Monsoon winds carry water and it rains.
Answer
True
Question 2.
Moving air is storm.
Answer
False
Question 3.
Typhoons are dark funnel shaped clouds.
Answer
False
Question 4.
Anemometer is used to measure the speed of wind.
Answer
True
Question 5.
Orissa was hit by a cyclone on 18 Oct., 1999.
Answer
True
Question 6.
Self help is best help. It is better to plan in advance and to be ready to defend any aproaching cyclone.
Answer
True
Question 7.
Regularly listen to weather bulletins on T.V. and radio.
Answer
True
Question 8.
Hurricane is a cyclone in Philippines and Japan.
Answer
False
Question 9.
The word monsoon is derived from the Arabic word ‘mausan’ whic means ‘season’.
Answer
True
Question 10.
The coastline of India is not vulnerable to cyclones.
Answer
False
Question 11.
In winters, the winds flow the land to the ocean.
Answer
True
Question 12.
A cyclone is formed by a very high pressure system with a very high speed wind revolving around it.
Answer
False
Question 13.
In summers, the winds flow the land towards the ocean.
Answer
False
Question 14.
A good house is one which has no windows and ventilation.
Answer
False
Question 15.
Water should be used as such as in a cyclone hit area.
Answer
False
Question 16.
Thunder storm is a kind of weather characterized by rain.
Answer
True
Fill in the blanks:
Question 1.
Air exerts …………………… in all direction.
Answer
pressure
Question 2.
The Indian Meteorological Department forecasts cyclones with the help of …………………… satellite.
Answer
INSAT
Question 3.
Rubber suckers work because of air …………………….
Answer
pressure
Question 4.
A …………………… is a violent, twisting funnel of wind.
Answer
tornado
Question 5.
Wind is …………………… air.
Answer
moving
Question 6.
Wind is generated due to heating on the …………………… earth.
Answer
uneven
Question 7.
Near the earth’s surface …………………… air rises up whereas …………………… air comes down.
Answer
hot, cold
Question 8.
Air moves from a region of …………………… pressure to a region of …………………… pressure.
Answer
high, low
Question 9.
…………………… and …………………… have made easier to monitor cyclones.
Answer
Radar, satellites
Question 10.
…………………… are important for harvest. If harvest is good, farmers are happy.
Answer
Clouds
Question 11.
…………………… is a cyclone in Philippines and Japan.
Answer
Typhoon
Question 12.
Continuous heavy rainfall leads to …………………… situation.
Answer
flood
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