Winds Storms and Cyclones Test

Result

Winds Storms and Cyclones Test - 16

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Weekly Quiz Competition

Question 1
1 / -0

The shape of a balloon is maintained by:

A
air pressure

B
Temperature

C
Wind velocity

D
Density of air.

Solution

When a balloon is inflated, the air inside exerts pressure on the inner surface of the balloon. But at the same time, the atmosphere exerts pressure on the outer walls of the balloon uniformly from outside. This gives the balloon its shape.
Question 2
1 / -0

There is an eastward wind. In which direction would it be easier to fly a kite?

A
East

B
West

C
North

D
South

Solution

Air is capable of exerting pressure. Hence it would be possible to fly a kite towards east, as air pressure will push the kite towards east.
Question 3
1 / -0

Identify the region with the highest air pressure.

A
A

B
B

C
C

D
Both B and C

Solution

We know that increased wind speed is accompanied by reduced air pressure. Hence, the region inside the house, where there is no wind will be at a higher pressure.
Question 4
1 / -0

Pick the correct statement:

A
It is easier to row a boat in the direction of wind

B
It is easier to row a boat against the direction of wind

C
It is easy to row a boat regardless of wind direction

D
It is easier to row a boat perpendicular to the direction of wind

Solution

As air exerts pressure, it is easier to row a boat along the direction of wind.
Question 5
1 / -0

What can happen if you overfill a bicycle tube?

A
Tube can collapse due to high air pressure outside the tube

B
Tube can burst due to high air pressure outside the tube

C
Tube can collapse due to high air pressure inside the tube

D
Tube can burst due to high air pressure inside the tube

Solution

In an overfilled bicycle tube, higher pressure inside the tube can lead to the tube bursting.
Question 6
1 / -0

Paheli kept an empty bottle made of plastic inside a refrigerator. What is likely to happen?

A
The bottles will collapse because air outside the bottle will exert extra pressure

B
The bottles will expand because air outside the bottle will exert extra pressure

C
The bottles will collapse because air inside the bottle will exert extra pressure

D
The bottles will expand because air inside the bottle will exert pressure

Solution

The bottles will collapse because the air outside the bottle will exert extra pressure.
When kept inside the refrigerator, the water vapors inside the bottle will condense, leaving a lot of empty space inside the bottle. The air outside the bottle will exert extra pressure which would lead to the bottle collapsing.
Question 7
1 / -0

A tin can containing hot liquid is sealed tightly shut with a lid. If cold water is poured over it, what is likely to happen?

A
Tin can will explode

B
Tin can will shrink and collapse

C
Tin can will remain unaffected

D
Either A or B

Solution

As water is poured over the can, some steam in the can condense into water, reducing the amount of air inside. The pressure of the air inside the can decreases than the pressure exerted by the air from outside the can. As a result, the can gets compressed.
Hence option B is correct
Question 8
1 / -0

Consider the following two statements:
A: Air moves from the region where the air pressure is high to the region where the pressure is low.
B: The greater the difference in pressure, the slower the air moves.

A
Both A and B are correct

B
A is correct and B is incorrect

C
A is incorrect and B is correct

D
Both A and B are incorrect

Solution

Air move from high-pressure areas to low-pressure areas. And the bigger the difference between the pressures, the faster the air will move from the high to the low pressure. That rush of air is the wind we experience.
Question 9
1 / -0

Wind speed in a region depends on which of the following factors?

A
Humidity

B
Air pressure

C
Latitude/Longitude

D
Pollution

Solution

At the Earth's surface, the wind blows horizontally from high pressure to low-pressure areas. The speed is determined by the rate of air pressure change, or gradient, between the two pressure areas. The greater the pressure difference, the faster the winds.
Question 10
1 / -0

A magician fills up one-third of a glass with water. He places a card over the mouth of the glass and inverts it. The water doesn't fall. Pick the correct explanation for this phenomenon

A
air pressure outside the glass is more than the weight of the water in the glass.

B
air pressure outside the glass is less than the weight of the water in the glass.

C
air pressure inside the glass is more than the weight of the water in the glass.

D
air pressure outside the glass is less than the weight of the water in the glass.

Solution

The water doesn't fall because the air pressure outside the glass is more than the weight of the water in the glass. The air pressure pushes the card upwards with a greater force, thus preventing the water from falling.

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Re-Attempt Weekly Quiz Competition

Winds Storms and Cyclones Test - 16

Result

Winds Storms and Cyclones Test - 16

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SHARING IS CARING

Question 1

air pressure

Temperature

Wind velocity

Density of air.

Solution

Question 2

East

West

North

South

Solution

Question 3

A

B

C

Both B and C

Solution

Question 4

It is easier to row a boat in the direction of wind

It is easier to row a boat against the direction of wind

It is easy to row a boat regardless of wind direction

It is easier to row a boat perpendicular to the direction of wind

Solution

Question 5

Tube can collapse due to high air pressure outside the tube

Tube can burst due to high air pressure outside the tube

Tube can collapse due to high air pressure inside the tube

Tube can burst due to high air pressure inside the tube

Solution

Question 6

The bottles will collapse because air outside the bottle will exert extra pressure

The bottles will expand because air outside the bottle will exert extra pressure

The bottles will collapse because air inside the bottle will exert extra pressure

The bottles will expand because air inside the bottle will exert pressure

Solution

Question 7

Tin can will explode

Tin can will shrink and collapse

Tin can will remain unaffected

Either A or B

Solution

Question 8

Both A and B are correct

A is correct and B is incorrect

A is incorrect and B is correct

Both A and B are incorrect

Solution

Question 9

Humidity

Air pressure

Latitude/Longitude

Pollution

Solution

Question 10

air pressure outside the glass is more than the weight of the water in the glass.

air pressure outside the glass is less than the weight of the water in the glass.

air pressure inside the glass is more than the weight of the water in the glass.

air pressure outside the glass is less than the weight of the water in the glass.

Solution

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