Download question bank winds, storms and cyclones

GITARATTAN JINDAL PUBLIC SCHOOL
ROHINI DELHI-110085
QUESTION BANK
CLASS
: VII
SUBJECT : SCIENCE
WINDS, STORMS AND CYCLONES
MULTIPLE CHOICE QUESTION ( 1 MARKS EACH)
1. Which one of the following place is unlikely to be affected by a cyclone.
(i) Chennai (ii) Mangalore
(iii) Amritsar (iv) Puri
2. Which of the statements given below is correct?
(i) In winter the winds flow from the land to the ocean.
(ii) In summer the winds flow from the land towards the ocean.
(iii) A cyclone is formed by a very high-pressure system with very
high-speed winds revolving around it.
(iv) The coastline of India is not vulnerable to cyclones.
3. An example of natural disaster is :
i. Tsunami ii. Flood iii. Storm iv. All of these
4. Which of the following is most likely to be in the ‘eye’ of a cyclone ?
i. It is an area of high pressure ii. It is an area of low pressure
iii. It has high speed winds iv. It has lots of clouds
5. Which of the following plays an important role in the early warning systems.
i. Satellites ii. Moon iii. Helicopters iv. Submarines
6. Which of the following is the best thing to do during heavy lightning ?
i. lie on the ground in an open place.
ii. Go into a water body
iii. Stay indoors, away from metallic doors and windows.
iv. stand under a tall tree.
7. When a vehicle, like a train, moves very fast a/an …………..is created tem temporarily behind it.
i. Low pressure ii. High pressure iii. Eye iv. Cyclone
VERY SHORT ANSWER TYPE QUESTIONS (1 MARKS EACH)
1. What is Anemometer ?
2. What happens to air on heating?
3. Name the scale on which to destructive energy of and earthquake is measured .
4. Define wind?
5. Name two water borne disease.
6. What is the other name of cyclones?
7. Why the leaves of trees or flags flutter when the wind blow?
8. Name the layer of earth in which atmosphere exists?
9. Define pressure.
10. Name two modern technology which help in making a forecast of a cyclones?
SHORT ANSWER TYPE QUESTIONS (2-3 MARKS EACH)
1. Suggest two methods to find out wind direction at a given place.
2. State two experiences that made you think that air exerts pressure
3. You want to buy a house. Would you like to buy a house having windows but no ventilators?
Explain your answer.
4. Explain why holes are made in hanging banners and hoardings.
5. Write two reasons for floods to occur.
6. What is tornado?
7. Why hot air goes up?
8. What is monsoon?
9. What is a thunderstone?
10. What is disaster management ?
ANSWER THESE QUESTIONS (3 MARKS EACH)
1. Why does a balloon taken near a candle burst.
2. What is a lightning conductor ? How does it help ?
3. Explain the term thunders storm?
4. Why does heater that is placed on the floor heat the whole room.
5. What are floods? What precautions should be taken when flood occur?
LONG ANSWER TYPE QUESTIONS (5 MARKS EACH)
1. How will you help your neighbours in case cyclone approaches your village/town?
2. What planning is required in advance to deal with the situation created by a cyclone?
3. What safety measures should be taken during a cyclone ?
4. Draw a flow chart that help to understand the phenomena that lead to the formation of cloud
and following of rain & creation of storm and cyclones.
5. Does a steel skyscraper need a lightning conductor explain why?
FILL IN THE BLANKS (1 MARKS EACH)
1. Wind is——————air.
2. Winds are generated due to——————heating on the earth.
3. Near the earth’s surface __________air rises up whereas___________ air comes down.
4. Air moves from a region of ——— pressure to a region of———pressure.
5. Air around us ___________.Pressure.
6. Air ________ on heating and ________ on cooling.
7. Warm air ________, whereas comparatively cooler air tends to _________towards the earth’s
surface.
8. As warm air rises, air pressure at that place is _________ and the cooler air moves to that
place.
9. The moving air is called __________.
10. Uneven heating on the earth is the main cause of __________ movements.