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7th CBSE
IMPORTANT
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The diagram shows the flow of winds over a mountain as air rises on the windward side of the mountain, the air's temperature decreases.

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Which process usually causes this temperature decrease?

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Important Questions on Winds, Storms and Cyclones

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7th CBSE
IMPORTANT

Admiral Beaufort, in 1805, invented the Beaufort Scale which was useful in estimating wind speeds through observation objects. Originally, it was devised for use in oceans, but later it was adapted for use on land as well. Parts of the Beaufort Wind Scale, which is a numerical scale for wind speed, are given.

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Where would you put the following symbol?

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HARD
7th CBSE
IMPORTANT

Admiral Beaufort, in 1805, invented the Beaufort Scale which was useful in estimating wind speeds through observation objects. Originally, it was devised for use in oceans, but later it was adapted for use on land as well. Parts of the Beaufort Wind Scale, which is a numerical scale for wind speed, are given.

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The effect on land: “large branches move” is likely to match the description _____.

 

HARD
7th CBSE
IMPORTANT

Admiral Beaufort, in 1805, invented the Beaufort Scale which was useful in estimating wind speeds through observation objects. Originally, it was devised for use in oceans, but later it was adapted for use on land as well. Parts of the Beaufort Wind Scale, which is a numerical scale for wind speed, are given.

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Heavy rains and strong winds lashed the coast of Tamil Nadu yesterday causing widespread damage in their wake. Winds reaching a speed of up to 100 kmph were reported. Trees were uprooted at a number of places inhibiting traffic movement. Which weather map symbol corresponds to the above description?

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7th CBSE
IMPORTANT
Sumith is filling a number of small bottles with juice quickly and with no spillage. Which of these arrangements should he use?
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7th CBSE
IMPORTANT
Cooling due to radiation occurs when the heat absorbed by the Earth during the day is radiated into space in the evening. Under which of these evening conditions would cooling due to radiation be maximum?
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7th CBSE
IMPORTANT
Four students are conducting an experiment. They each have a glass bottle which are kept in four vessels as shown in the figure.

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They fix a balloon on the mouth of each of the glass bottles. The balloon will inflate in which of the following options?

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7th CBSE
IMPORTANT

Riya fills a bottle with warm water. She then empties it and tightly closes the bottle using its cap. Immeadiately cold water was poured on the closed bottle. she notices that the shape of the bottle gets distorted.

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Explain how the bottle got distorted?

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7th CBSE
IMPORTANT

Adit and friends were playing with baloons. They had two baloons which were hanged from a rope. When a fan was blowing in the space between the baloons, they observed that the baloons are moving closer. Give reason for this observation.

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