Winds, Storms and Cyclones Class 7 Quiz Question with Answer
Winds, Storms and Cyclones Class 7 Quiz Question with Answer. CBSE Class 7 Science Lesson 8 Mock Test.
- Multiple choice questions
1) Which device is used for measuring speed of wind?
a) Durometer
b) Thermometer
c) Anemometer
d) None of these
Answer: – b) Anemometer
Explanation: – Anemometer is a device used for measuring wind speed while a thermometer measures temperature and Durometer measures hardness of substances.
2) Which country is mostly affected by cyclones among the following?
a) India
b) Nepal
c) Indonesia
d) None of these
Answer: – c) Indonesia
Explanation: – Indonesia is nearer to the sea and most likely to be affected by cyclones than India and Nepal.
3) A closed bottle has pressure __________atmospheric pressure.
a) equal to
b) higher than
c) less than
d) Both (a) and (b)
Answer: – b) higher than
Explanation: – A closed bottle has higher pressure higher than atmospheric pressure because a closed bottle has vapor pressure and atmospheric pressure both.
4) Which of the following is most likely to be present during night time?
a) sea breeze
b) land breeze
c) both a and b
d) none of these
Answer: – b) land breeze
Explanation: – During night time, the land breeze is present while sea breeze is present during day time.
5) Which of the following factors cause cyclones in tropical regions?
a) sun energy
b) wind
c) highest
d) none of these
Answer:-a) Sun energy
Explanation: – The sun warms the surface water in the tropical region. The change in temperature causes the movement of air. This causes pressure changes and results in tropical cyclones.
6) In which of the following regions The sun energy causes cyclones?
a) Desert region
b) Tropical region
c) Polar region
d) None
Answer: – b) Tropical region
Explanation: – The surface of water is warm by sun energy in tropical regions . The change in temperature causes movement of air, this causes pressure change and cyclones in place.
7) High speed wind is accompanied by __________.
a) Increase air pressure
b) Reduced air pressure
c) Air pressure does not change
d) None
Answer: – b) Reduced air pressure
Explanation: – Air travels from high pressure to low pressure which means high speed will be accompanied by reduced air pressure.
8) Which of the following statement is Correct-
a) Wind help in the formation clouds
b) High speed winds are accompanied by reduced air pressure.
c) Solar energy causes cyclones in tropical region.
d) All the above.
Answer :- d) All the above
Explanation: – All the above statements are correct.
9) What is used to detect the early warning for cyclones?
a) satellite
b) clouds
c) sun
d) none
Answer: – a) satellite
Explanation: – Satellite gives the information about early -warning of cyclones. Cyclone warnings will aware you before 24 hours the cyclone comes.
10) Which department records the information about the cyclone?
a) Meteorological department
b) Biological Department
c) Psychological department
d) All the above
Answer: – Meteorological department
The Meteorological department collects the data on cyclones.
11) In which of the following region Thunderstorm are develop?
a) Tropical region
b) Temperate region
c) Polar region
d) None of these
Answer: – a) Tropical region
Explanation: – Thunderstorms develop in hot, humid tropical areas because rising temperature evaporates more water, upward rising winds transfer water droplets further at high altitude water cools and falls back on earth.
12) The word monsoon is derived from which of the following word?
a) Latin word
b) Italic word
c) Arabic word
d) none of there
Answer: – c) Arabic word
Explanation: – The word monsoon is derived from the Arabic word ‘mausam’, which means ‘season ‘ .
13) Warm air lighter than cold air. Explain why?
a) Cause of increase in molecule
b) Cause of decrease in molecular spaces.
c) Cause of increase in the molecular spaces.
d) Cause of decrease in molecules.
Answer: – c) cause of increase in the molecular spaces.
Explanation: – Air expands on heating and occupies more space, hence the distance between molecules increases and warm air is lighter than cold air.
14) Choose the incorrect statement among the following?
a) Air around us exerts pressure
b) Air expand on cooling
c) Wind carrying water vapor bring rain
d) Warm air lighter than colder air
Answer :- b) air expands on cooling
Explanation: – all statements are correct except only option (b) because air expands on heating.
15) A cyclone is also known as ________.
a) typhoon
b) Hurricane
c) both a and b
d) none
Answer: – both a and b
Explanation: – Cyclone is known by different name in different part of the world cyclone known as hurricane in American continent and it also know by typhoon in Japan and Philippines.
16) “A ball falls on the ground”, is that due to atmospheric pressure?
a) Yes
b) No
c) Can’t say
d) none of these
Answer: – b) No
Explanation: – A ball falls to the ground because of gravity, not because of atmospheric pressure.