Winds, Storms and Cyclones-Air (CBSE Class-7 Science): Questions 1 - 6 of 6

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Question number: 1

» Winds, Storms and Cyclones » Air » Air Exerts Pressure

MCQ▾

Question

Air pressure changes from:

Choices

Choice (4) Response
a.

Place to place

b.

Time to time

c. Both a. and b. are correct
d. None of the above

Question number: 2

» Winds, Storms and Cyclones » Air » Air Exerts Pressure

MCQ▾

Question

Some common examples which show that air exerts pressure are:

Choices

Choice (4) Response
a.

Drinking Straw

b.

The rubber sucker

c.

Fountain pen

d. All a. , b. and c. are correct

Question number: 3

» Winds, Storms and Cyclones » Air » Wind

MCQ▾

Question

The instrument used to measure the speed of wind is called as:

Choices

Choice (4) Response
a.

Anemometer

b.

Wind vane

c. Question does not provide sufficient data or is vague
d. None of the above

Question number: 4

» Winds, Storms and Cyclones » Air » Wind

MCQ▾

Question

Moving air is called as:

Choices

Choice (4) Response
a.

Lift

b.

Wind

c.

Wind current

d. None of the above

Question number: 5

» Winds, Storms and Cyclones » Air » Air Exerts Pressure

MCQ▾

Question

Atmospheric pressure is defined as:

Choices

Choice (4) Response
a.

The pressure exerted by the gases in the atmosphere on the surface of the earth

b.

Moving air

c.

Air that covers the earth in a thick blanket

d.

Force per unit area exerted by a gas

Question number: 6

» Winds, Storms and Cyclones » Air » High Speed Winds and Reduced Air Pressure

MCQ▾

Question

Lift is defined as:

Choices

Choice (4) Response
a.

The less the speed of the wind, the lesser will be the air pressure

b.

The more the speed of the wind, the lesser will be the air pressure

c.

The low pressure created by rising warm air and falling cool air

d. None of the above

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