Winds Storms and Cyclones Test

Result

Winds Storms and Cyclones Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

When a fluid is heated, it expands and becomes

A
lighter

B
heavier

C
no change

D
none of these

Solution

On heating, the fluid expands and occupies more space. When the same amount of fluid occupies more space, it becomes lighter. The warmer fluid is, therefore, lighter than the colder fluid.
Question 2
1 / -0

Which of the following expands most of heating?

A
Solids

B
Liquids

C
Sand

D
Gases

Solution

Because of the less force of attraction between the molecules, gases when heated expand the most because they need less energy to break the bonds.
Question 3
1 / -0

During a cyclone, air moves from :

A
Region of high pressure to low pressure

B
Region of high pressure to high pressure

C
Region of low velocity to high velocity

D
Region of high pressure to low velocity

Solution

The correct answer is option (A).
We know when there is difference in atmospheric pressure, air moves from the higher to the lower pressure area, resulting in winds of various speeds. Hence during a cyclone, air moves from region of high pressure to low pressure.
Question 4
1 / -0

By what sign can an approaching cyclone be identified?

A
Cool breeze and rains.

B
High temperature and humidity.

C
Rains accompanied by lighting

D
Powerful water waves.

Solution

Strong winds push water towards the shore even if the storm is hundreds of kilometres away. These are the first indications of an approaching cyclone. The water waves produced by the wind are so powerful that a person cannot overcome them. The low pressure in the eye lifts water surface in the centre. The rising water may be as high as $$3-12$$ metres. It appears like a water-wall moving towards the shore. High-speed winds accompany a cyclone.
Question 5
1 / -0

Sea breeze, a local wind system characterized by a flow from sea to land

A
During day

B
During night

C
Throughout day and night

D
None of these

Solution

Local wind system characterized by a flow air. When the air flow from sea to land during day time is called Sea breeze and when air flow from land to water/sea at night is called Land breeze.
Question 6
1 / -0

Which of the following is the first sign of an approaching cyclone?

A
Rains accompanied by lighting

B
High temperature and humidity

C
Cool breeze and rains

D
Powerful water waves

Solution

Cyclones can be very destructive. Strong winds push water towards the shore even if the storm is hundreds of kilometers away. These are the first indications of an approaching cyclone. The water waves produced by the wind are so powerful that a person cannot overcome them.
Question 7
1 / -0

When a substance is heated, its density

A
increases

B
decreases

C
remains same

D
first decreases then increases

Solution

As a substance is heated, its volume increases, and thus its density decreases.
Option B.
Question 8
1 / -0

Which of the following will rise the highest?

A
Air at $$10^oC$$

B
Air at $$40^oC$$

C
Air at $$15^oC$$

D
Air at $$5^oC$$

Solution

In hot air, the particles have higher kinetic energy and hence less density, so the air with the highest temperature will rise the highest.
Therefore, air at $$40^oC$$ will rise the highest.
Question 9
1 / -0

Wind currents are generated due to:

A
Uneven heating between the equator and the poles

B
Change in atmospheric pressure

C
Thunderstorm

D
Cyclone

Solution

The correct answer is option(A).
We know poles are cooler than equator as highest intensity of the sun's heat and light falls on the equator and it reduces as we go either side of the equator towards the poles. Cooler air from the surrounding areass of the equator comes towards the equator to fill the place of warm air which rises up due to sun's heating. Hence, wind currents are generated due to uneven heating.
Question 10
1 / -0

Find the odd one out :
anemometer, thermometer, wind speed, formation of storm

A
thermometer

B
anemometer

C
wind speed

D
formation of storm

Solution

Thermometer is related to temperature while all others are related to wind/ air speed or pressure. Thermometer is a device used to measure the temperature.

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Re-Attempt Weekly Quiz Competition

Winds Storms and Cyclones Test - 4

Result

Winds Storms and Cyclones Test - 4

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SHARING IS CARING

Question 1

lighter

heavier

no change

none of these

Solution

Question 2

Solids

Liquids

Sand

Gases

Solution

Question 3

Region of high pressure to low pressure

Region of high pressure to high pressure

Region of low velocity to high velocity

Region of high pressure to low velocity

Solution

Question 4

Cool breeze and rains.

High temperature and humidity.

Rains accompanied by lighting

Powerful water waves.

Solution

Question 5

During day

During night

Throughout day and night

None of these

Solution

Question 6

Rains accompanied by lighting

High temperature and humidity

Cool breeze and rains

Powerful water waves

Solution

Question 7

increases

decreases

remains same

first decreases then increases

Solution

Question 8

Air at $$10^oC$$

Air at $$40^oC$$

Air at $$15^oC$$

Air at $$5^oC$$

Solution

Question 9

Uneven heating between the equator and the poles

Change in atmospheric pressure

Thunderstorm

Cyclone

Solution

Question 10

thermometer

anemometer

wind speed

formation of storm

Solution

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