CBSE Questions for Class 7 Physics Winds Storms And Cyclones Quiz 4 - MCQExams.com

The warm air ______, and the cooler air from the regions in the $$30 \ degrees$$ latitude belt on either side of the _______moves in.
  • moves downwards, equator
  • rises, pole
  • rises, equator
  • moves downwards, pole
At poles, how is the direction of Polar winds ?
  • Air from Polar region moves in towards the $$60^o$$ latitude belt
  • Air from the $$60^o$$ latitude belt moves in towards Polar region
  • Air from Polar region moves in towards the equatorial region
  • Air from equatorial region moves in towards the Polar region
The air just above the flame of burning candle will ____________.
  • Rise up
  • Moves down
  • Moves sideways
  • It will not move in any direction.
Which one of the following is not the name of Cyclone in different parts of the world ?
  • Typhoon
  • Tornoid
  • Hurricane
  • Tropical Cyclone
The uneven heating of land takes place due to 
  • Direction of sunlight
  • Direction of wind
  • Temperature of the earth
  • None of the above
Two stages of warnings are provided by Indian Meteorological Department. Which of the following option is correct about their names and sequence of announcements?
  • Cyclone alert, cyclone warning
  • Cyclone warning, cyclone alert
  • Cyclone warning, cyclone watch
  • Both of the warnings are issued simultaneously
How has advanced technology helped to prepare better for the Cyclone ?
  • Satellites and Radars can help to issue Cyclone Warning  nearly $$48 \ hrs$$ before the cyclone hits the place
  • Help messages can be broadcasted every hour or every half an hour when a cyclone is nearer to the coast.
  • Songs can be played on radio to keep stranded people entertained
  • Both A and B
By what name is Cyclone known in North America ?
  • Typhoon
  • Tornoid
  • Hurricane
  • Flood
The sea breeze is caused due to the low pressure generated over
  • Land
  • Sea
  • Air
  • Both A and B
Choose the correct options (one or more) 
At the equator, the air is _____ than that at latitudes about 30 degrees.
  • warmer
  • colder
  • heavier
  • lighter
The sea breeze is conducted due to the creation of high pressure on the 
  • Land
  • Sea
  • Air
  • None of the above
The wind blows from 
  • High pressure to low pressure
  • Low pressure to high pressure
  • Low temperature to high-temperature
  • All of the above
Which of the following area is created over land during land breeze?
  • High pressure
  • Low pressure
  • Low temperature
  • All of the above
By what name is a cyclone known in Asia ?
  • Hurricane
  • Typhoon
  • Tornoid
  • Flood
High speed winds at a place result by
  • Increased pressure
  • Reduced pressure
  • Water vapour
  • Static electricity
Cyclones are associated with
  • High-speed wind
  • Differential air pressure
  • Uneven heating of land
  • All of the above
Air exerts pressure in
  • Downward direction only
  • Upward direction only
  • Sideways only
  • All directions
A thunderstorm is accompanied by
  • Lightning
  • Cyclone
  • Hurricane
  • tornado
Which of the following is the first sign of an approaching cyclone
  • Rains accompanied by lightning
  • Powerful water waves
  • Cool breeze
  • None of these
A fire alarm usually detects smoke in case of fire. Where such alarm should be placed in a room?
  • Near the door
  • On the floor
  • On any wall
  • On the ceiling
Tropical cyclones in American continent are called:
  • Willy willy
  • Hurricanes
  • Easterly waves
  • Typhoons
When high speed wind blows, an umbrella held upright sometimes get upturned. The reason being
  • High speed wind creates a high pressure zone above and below the umbrella.
  • High speed wind creates a low pressure zone above and high pressure zone below the umbrella.
  • High speed wind creates a low pressure zone below and high pressure zone above the umbrella.
  • None of these.
The cyclonic storm occurring over the Caribbean Sea is known as-
  • Typhoon
  • Willy-Willy
  • Hurricane
  • Cyclone
When the atmospheric pressure of the earth falls suddenly then __________.
  • there is a clear weather
  • there may be a slow wind
  • there may be storms and strong winds
  • none of these
The air pressure in the balloon is due to the air filled in it, striking the walls of the balloon.
  • True
  • False
During thunderstorm lightning is seen first and thunder is heard later on. Why?
  • First light and then sound is produced
  • Light travels faster than sound
  • Sound travels faster than light
  • Sound becomes feeble due to strom

Figure shows a child
blowing air with a straw near the 
opening of another straw which has its other and in a soft drink bottle. It was observed that the level of the soft drink in the straw rises up as soon as air is blown over its open end. Which one of the following best explains the reason for rise in level of the drink?


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  • Blowing of air decreases pressure over the opening of the straw.
  • The straw of the soft drink bottle collapses when air is blown over in open end.
  • Blowing of air warms up the air inside the straw.
  • Blowing of air increases the pressure on the surface of soft drink in the bottle.

Which of the following place is most likely to be affected by a cyclone?

  • Mumbai
  • Puri
  • Goa
  • Porbandar
Which one of the following place is unlikely to be affected by a cyclone. 
  • $$Chennai$$
  • $$Mangaluru (Mangalore)$$
  • $$Puri$$
  • $$Amritsar$$
 Which of the statements given below is correct?
  • In winter the winds flow from the land to the ocean
  • In summer the winds flow from the land towards the ocean.
  • A cyclone is formed by a very high- pressure system with very high-speed winds revolving around it.
  • The coastline of India is not vulnerable to cyclones.
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