Pressure, Winds, Storms, and Cyclones classs 8 MCQ

class 8 science

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General Instructions

Your test contains multiple-choice questions with only one answer-type question. There are a total of 10 questions

This is a 20 min test. Please make sure you complete it in the stipulated time
You can finish this test any time using the 'Submit' button.

1. High speed winds are accompanied by

high air pressure

low air pressure

zero air pressure

Moderate air pressure

2. Which of the following is true of the 'eye' of a cyclone?

Area of high pressure

Area of low pressure

lots of clouds and rains

high temperature

3. Pick the odd one out

Cyclone

Hurricane

typhoon

Monsoon

4. which of the following is incorrect

Anemometer is the instrument used to measure the wind speed

Reduction of air pressure increase the speed of the wind

The moving air is called wind

The cold air is lighter than hot air

5. A curtain is hanging at the entrance of a room. A long corridor runs at right angles to the door, that is parallel to the curtain. If a strong wind blows along the corridor, the curtain will

get pushed inside the room.

get pushed outside the room

get collected towards one end/swirled.

remain unaffected

6. The S.I unit of Pressure is

Bar

Pascal

Newton

Kg-wt

7. A body weighs 100 N is placed on the top of the wooden table. The area of contact is 2 m². The pressure exerted by the body on the wooden table will be

100 Pa

25 Pa

50 Pa

75 Pa

8. A sharp knife enable us to cut through things more easily as compare to the blunt knife because

The pressure exerted is greater when the same force is used

The pressure exerted is lesser when the same force is used

The sharp edge is not felt when cutting through the material.

The sharp edge can pass through the material slowly

9. We have two surfaces A and B where same amount of Force is acting. Area of Surface A is greater than Area of Surface B. which of the following will be true

Pressure on Surface A= Pressure on Surface B

Pressure on Surface B > Pressure on Surface A

Pressure does not depend on area

Pressure on Surface A > Pressure on Surface B

10. The pressure at the bottom of the tank containing a liquid does not depend on

Nature of the liquid

Area of the bottom surface

Acceleration due to gravity

Height of the liquid column

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