Wind

Q.

Sushweta is planning to visit her grandmother’s place for the vacation. Looking at the weather report of that place, which type of clothes should she carry?

$\begin{array}{ccccccc}Day& 28-Mar& 29-Mar& 30-Mar& 31-Mar& 1-Apr& 2-Apr\\ Temperature& {12}^{\circ }C& {14}^{\circ }C& {11}^{\circ }C& {10}^{\circ }C& {12}^{\circ }C& {13}^{\circ }C\end{array}$

1. Light colored clothes

2. Either of the above

3. Cotton

4. Woolen

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. Wind was blowing from region A to region B. Suddenly the pressure of region B drops, while that of region A remains the same. Then, the speed of the wind will:

1. Increase
2. Become zero
3. Decrease
4. Not change

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

Q. Which of the following properties of wind is not useful to mankind?

1. It helps in the formation of clouds.
2. It helps to maintain average temperature on the earth.
3. It disperses fresh air from one place to another.
4. All of the above.

Q. Choose the correct statement from the following.

1. High-speed winds are accompanied by reduced air pressure.
2. High-speed winds are accompanied by increased air pressure.
3. Change in pressure does not affect the wind velocity.
4. Humidity can change the velocity and direction of wind.

Q. The device used to measure wind speed is ___________.

1. anemometer
2. ammeter
3. galvanometer
4. barometer

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

Q.

___ is simply the flow of a huge amount of air.

1. Wind

2. Fossil Fuel

3. Asteroid Belt

4. Typhoon

Q. Moving air is known as ___________.

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