Wind

Q. What is wind? Explain how is wind useful to mankind?

Q. How is wind useful to mankind?

1. Energy can be generated from high speed wind.
2. All of the above.
3. Wind help to maintain temperature over a landmass.
4. The winds from the oceans carry water and bring rain.

Q. Which device is solely used to find the direction of wind?

1. Manometer
2. Anemometer
3. Barometer
4. Wind Vane

Q.

Report Writing On Fani Cyclone For Class 10

Q. The instrument that measures the wind speed is called a/an ________.

1. barometer
2. anemometer
3. seismograph
4. hydrometer

Q. What are the factors responsible for the generation of wind currents on Earth? [2 MARKS]

Q. Why does this happen?
Take 2 balloons of approximately equal size.put a little water into the ballons.Blow up both the balloons and tie each one to a string.Hang them 8-10 cm apart on a stick.blow in the space between the ballons, THey moved towards each other.
Ouestion:Why did the balloons moved towards each other on being blown?

Q.

Question 9

Fill in the blanks.
(i) Air around us exerts___
(ii) The moving air is called ___
(iii) The main cause of wind movement is uneven ___ on the earth.
(iv) High speed wind can cause cyclone in regions of ___ pressure

Q.

Question 1 (a)
Fill the missing word in the blank spaces in the following statements:
(a) Wind is $\underset{–}{}$ air.

Q.

49 Explain the following observations briefly:

(b) The arrow of weather cock points towards a particular direction at a particular moment.

Q. Arrange the following in the order of increasing wind speed.

1. Wind
2. Breeze
3. Storm
4. Cyclone

Q. The equator of the Earth is at higher temperature as compared to the poles.

1. True
2. False

Q.

What is air pressure?

Q.

During heavy rainfall and storms, thatched roofs over mud houses get blown away. What is the reason for this?

1. Due to high pressure over the roof.

2. Due to low pressure over the roof.

3. Due to moisture on the roof.

4. Due to heaviness of the roof.

Q. The winds on the Earth do not flow in the straight path from "north to south" or "south to north" directions. Why?

1. Due to the rotation of the Earth.
2. Due to seasons of the Earth.
3. Due to the shape of the Earth.
4. Due to the revolution of the Earth.

Q. On the Earth, winds from the North pole and the South pole blow towards the equator. What can we understand from this?

1. Earth is spherical in shape.
2. It is hotter in and around the equator as compared to the poles.
3. It is hotter in and around the poles as compared to the equator.
4. Wind cannot flow from the East or the West.

Q. A paper ball kept on the mouth of an empty plastic bottle will be pushed out if we press the bottle because:

1. The air pressure in the bottle is greater than the outside pressure.
2. The air pressure in the bottle is lower than the outside pressure.
3. The air pressure in the bottle is equal to the outside pressure.
4. The mass of paper ball and plastic bottle is equal.

Q. On earth, winds from the north and the south blow towards the equator. What can we understand from this?

1. Wind does not flow from the east or the west
2. Earth is round or spherical in shape
3. It is hotter in and around equator
4. It is hotter in and around the north and south

Q. Movement of air (wind) is one of the most important phenomena that happen on the earth. What are the benefits of wind for human beings?

1. Wind helps in formation of cyclones.
2. Wind helps in distributing rain clouds all over the earth's surface.
3. Wind helps in formation of tornadoes.
4. Wind helps in regulating temperature on the earth.

Q.

What are the advantages of air currents in our atmosphere?

Q. In which direction does air exerts pressure?

1. all direction

2. upward directions

3. downward directions

4. sideways only

Q.

Why is Chandigarh unlikely to be affected by a cyclone?

Q.

The air near the equator is comparatively colder than the air at the poles.

1. True

2. False

Q.

Question 18

Is air around us always transparent? Discuss.

Q. What is the appropriate step to prevent a weak thatched roof from blowing off when strong winds are blowing over it?

1. Open the doors and windows of the hut.
2. Close the doors and windows of the hut.
3. Make holes in the roof.
4. Burn wood inside.

Q. Choose the factors responsible for the generation of wind currents on the Earth:

1. Uneven heating between the poles and the equator.
2. Uneven heating of land and water in the coastal regions.
3. Too much cooling of polar regions.
4. Too much heating of polar regions.

Q. Moving air is known as ___________.

1. rain
2. wind
3. earthquake
4. thunderstorm

Q. Which of the following is not a method to find out wind direction at a given place?

1. By observing the direction in which the kite sways.
2. Throwing small pieces of paper and observing the direction in which it flows.
3. None of the above
4. By observing the direction in which a flag flutters.

Q. Suppose the earth rotated from east to west, instead of from west to east. How would this affect the pattern of wind circulation on the earth?

Q. The equator is hotter than the rest of the Earth because:

1. Earth revolves slowly around the Sun.
2. Winds blow from the north and the south towards the equator.
3. Equator receives more sunlight than the rest of the Earth.
4. Winds blow from the east to the west on the Earth.