Class 7 Winds Storms And Cyclones CBSE Questions & Answers

Class 7 · Winds Storms And Cyclones

This is Science Class 7 Winds Storms and Cyclones CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
It is difficult to ride a bicycle against the direction of wind because
  • A
    Air exert pressure
    Correct
  • B
    Bicycle becomes lighter
  • C
    Bicycle moves faster
  • D
    Wind cause reduced pressure
2
Wind direction is found by using
  • A
    Thermometer
  • B
    Barometer
  • C
    Wind Vane
    Correct
  • D
    Anemometer
3
To reduce the air pressure falling on banner and hoardings
  • A
    Holes are made
    Correct
  • B
    Made up of cotton clothes
  • C
    Tied strongly
  • D
    Hanged at height
4
Which of the following is not due to pressure change?
  • A
    Thunderstorm
  • B
    Earthquake
    Correct
  • C
    Cyclone
  • D
    Lightening
5
Wind speed of 170 Km is called
  • A
    Hurricane
  • B
    Hailstorm
  • C
    Heavy rain
  • D
    Typhoon
    Correct
6
Benjamin Franklin discovered the
  • A
    Thunderstorm
  • B
    Raining
  • C
    Cyclone
  • D
    Lightening
    Correct
7
Cyclone warning is issued
  • A
    36 hrs advance
  • B
    48 hrs advance
  • C
    12 hrs advance
  • D
    24 hrs advance
    Correct
8
In a cyclone, wind speed is about
  • A
    200- 250 Km/h
    Correct
  • B
    300- 400 Km/h
  • C
    50- 150 Km /h
  • D
    100- 200 Km/h
9
If a storm is accompanied by lightening, we should not take shelter under a high tree because
  • A
    It may fall during storm
  • B
    It has more rain falling
  • C
    It may contain other animals
  • D
    It has more chance of falling thunder
    Correct
10
Lightening is heard little earlier than thunder sound because
  • A
    Light moves slower than sound
  • B
    Sound require medium for propagation
  • C
    Light travels faster than sound
    Correct
  • D
    Light require medium for propagation
11
Which of the following factor do not contribute in formation of cyclone?
  • A
    Wind speed
  • B
    Altitude
    Correct
  • C
    Temperature
  • D
    Humidity
12
Lightning is usually accompanied by
  • A
    Floods
  • B
    Earthquake
  • C
    Rain
  • D
    Thunder
    Correct
13
A violent tornado can travels with a speed of
  • A
    300 Km/h
    Correct
  • B
    500 Km/h
  • C
    100 Km/h
  • D
    120 Km/h
14
As warm air rises up, air pressure at that place
  • A
    Increases
  • B
    Become very high
  • C
    Remain same
  • D
    Decreases
    Correct
15
Main cause of wind movement is the
  • A
    Uneven heating of earth
    Correct
  • B
    Difference in latitude
  • C
    Difference in altitude
  • D
    Even heating of earth