DCM
INTERNATIONAL SCHOOL
CLASS- VII Sub- Science
Assignment of
L- 8( Wind storm and cyclone)
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 cyclonei s 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 system.
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)-
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 ventil
ators?
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 ? BY- Rajan
