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Olympiad (Class 7) Winds, storms and cyclones — practice questions — page 2

Explore 61 free Winds, storms and cyclones questions in Olympiad (Class 7) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Winds, storms and cyclones questions and exercises with answers

Showing questions 31–60 of 61.

In which part of a cyclone are the greatest wind speeds found?Read the answer and worked solution →How wide is the calm eye at a cyclone's centre, typically?Read the answer and worked solution →Rapid intensification means winds rise by at least 56 km/h within how long?Read the answer and worked solution →After a cyclone passes, why is the sea surface often cooler?Read the answer and worked solution →Which cyclones are more prone to rapid intensification?Read the answer and worked solution →Which condition around a storm helps it strengthen best?Read the answer and worked solution →Dry air pulled into a cyclone's core has what effect on the storm?Read the answer and worked solution →Worldwide, which month is the most active for tropical cyclones?Read the answer and worked solution →The Atlantic cyclone season runs from June 1 to which date?Read the answer and worked solution →Storms in the North Indian basin are most common from April to December, peaking in which months?Read the answer and worked solution →Tropical cyclone intensity is judged mainly from which two measures?Read the answer and worked solution →The Saffir-Simpson scale decides a storm's category using which single factor?Read the answer and worked solution →Which zone often spawns tropical cyclones?Read the answer and worked solution →Which of these can damage a coast during a cyclone?Read the answer and worked solution →A cyclone is forecast to hit a coastal village. What is an important preparedness decision?Read the answer and worked solution →What do tropical cyclone tracking charts help people do?Read the answer and worked solution →How can warming ocean waters change tropical cyclones, according to scientists?Read the answer and worked solution →In which kind of cloud do thunderstorms occur?Read the answer and worked solution →What is the correct order of the three stages of a thunderstorm?Read the answer and worked solution →The top of a mature thundercloud spreads into what characteristic shape?Read the answer and worked solution →Which air motion dominates a thunderstorm in its dissipating stage?Read the answer and worked solution →Why does a single-cell storm fade after the downdraft?Read the answer and worked solution →Why does warm, moist air rise within cooler air to form clouds?Read the answer and worked solution →What is a tornado?Read the answer and worked solution →A tornado-like funnel forms over a large lake. What is it called?Read the answer and worked solution →The Fujita scale rates the strength of a tornado using what?Read the answer and worked solution →Which type of thunderstorm is the strongest and most severe?Read the answer and worked solution →Caught away from home as thunderstorms approach, where is it safest to shelter?Read the answer and worked solution →Why should you avoid taking a shower during a thunderstorm?Read the answer and worked solution →Thunder is audible from your garden. What does it mean?Read the answer and worked solution →

Worked practice questions

In which part of a cyclone are the greatest wind speeds found?

  1. The wall around the eye
  2. The calm centre of the eye
  3. The far outer edge
  4. The clear sky above it
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Correct answer: A. The wall around the eye

The ring of cloud around the eye, the eyewall, has the fastest winds, the quickest rising air and the heaviest rain.

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How wide is the calm eye at a cyclone's centre, typically?

  1. 3 to 5 m
  2. 30–65 km
  3. 300–650 km
  4. 3,000–6,500 km
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Correct answer: B. 30–65 km

The eye is typically 30 to 65 km across, much smaller than the whole storm.

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Rapid intensification means winds rise by at least 56 km/h within how long?

  1. 24 hours
  2. 3 hours
  3. 6 hours
  4. 12 hours
Show answer and solution

Correct answer: A. 24 hours

Rapid intensification is a rise in maximum sustained winds of 30 knots (56 km/h) or more within 24 hours.

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