Winds, Storms and Cyclones MCQ
Winds, Storms and Cyclones – MCQs
Class: 7 | Subject: Science
Section: Air & Natural Disasters
Based on: CBSE Board Examination Pattern
Section: Air & Natural Disasters
Based on: CBSE Board Examination Pattern
Instructions: These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 7 Science examinations. Each question includes a detailed explanation to help in concept clarity and exam preparation.
1. Air exerts pressure because it:
Answer: A. Has weight
Air is made of gases that have mass. Due to gravity, this mass exerts pressure on the Earth’s surface. This pressure is called atmospheric pressure.
Air is made of gases that have mass. Due to gravity, this mass exerts pressure on the Earth’s surface. This pressure is called atmospheric pressure.
2. Moving air is called:
Answer: B. Wind
Air in motion is called wind. It is caused due to differences in air pressure created by uneven heating of the Earth.
Air in motion is called wind. It is caused due to differences in air pressure created by uneven heating of the Earth.
3. High wind speed is associated with:
Answer: B. Low pressure
Wind flows from high pressure areas to low pressure areas. Greater the pressure difference, higher is the wind speed.
Wind flows from high pressure areas to low pressure areas. Greater the pressure difference, higher is the wind speed.
4. A cyclone is formed due to:
Answer: B. Low pressure
Cyclones develop when warm, moist air rises creating a low‑pressure center. Surrounding air rushes in, forming strong winds.
Cyclones develop when warm, moist air rises creating a low‑pressure center. Surrounding air rushes in, forming strong winds.
5. The eye of a cyclone is:
Answer: A. Calm region
The center of a cyclone is called the eye. It has very low pressure and relatively calm weather compared to the surroundings.
The center of a cyclone is called the eye. It has very low pressure and relatively calm weather compared to the surroundings.
6. Uneven heating of Earth causes:
Answer: B. Winds
Land and water heat differently, creating pressure differences that generate winds.
Land and water heat differently, creating pressure differences that generate winds.
7. An anemometer measures:
Answer: C. Wind speed
Anemometers are weather instruments used to record wind velocity.
Anemometers are weather instruments used to record wind velocity.
8. Cyclones mostly develop over:
Answer: B. Oceans
Warm ocean waters provide energy and moisture necessary for cyclone formation.
Warm ocean waters provide energy and moisture necessary for cyclone formation.
9. The instrument used to measure air pressure is:
Answer: B. Barometer
A barometer measures atmospheric pressure, helping predict storms and cyclones.
A barometer measures atmospheric pressure, helping predict storms and cyclones.
10. Storm surges are caused by:
Answer: B. Cyclones
Strong cyclone winds push seawater toward coasts, causing flooding called storm surges.
Strong cyclone winds push seawater toward coasts, causing flooding called storm surges.
11. The direction of wind is measured by:
Answer: A. Wind vane
A wind vane shows the direction from which the wind is blowing.
A wind vane shows the direction from which the wind is blowing.
12. Fast moving winds with rain are called:
Answer: B. Storms
Storms involve high‑speed winds often accompanied by rain, thunder, or lightning.
Storms involve high‑speed winds often accompanied by rain, thunder, or lightning.
13. Cyclones in the Atlantic Ocean are called:
Answer: B. Hurricanes
Different regions use different names—hurricanes in the Atlantic, typhoons in the Pacific.
Different regions use different names—hurricanes in the Atlantic, typhoons in the Pacific.
14. The safest place during a cyclone is:
Answer: C. Strong buildings
People should stay indoors, away from windows, in reinforced structures.
People should stay indoors, away from windows, in reinforced structures.
15. Tornadoes are most common in:
Answer: B. USA
The central USA experiences frequent tornadoes due to contrasting air masses.
The central USA experiences frequent tornadoes due to contrasting air masses.
16. Warm air rises because it is:
Answer: B. Lighter
Heating makes air expand and become less dense, so it rises.
Heating makes air expand and become less dense, so it rises.
17. The formation of clouds in cyclones is due to:
Answer: B. Condensation
Rising moist air cools and condenses into clouds releasing latent heat.
Rising moist air cools and condenses into clouds releasing latent heat.
18. Cyclone warnings are issued by:
Answer: B. Meteorological Department
Weather departments track satellite data to forecast cyclones.
Weather departments track satellite data to forecast cyclones.
19. The main energy source of cyclones is:
Answer: A. Sun’s heat
Solar heating of oceans drives evaporation and cyclone energy.
Solar heating of oceans drives evaporation and cyclone energy.
20. Cyclones cause heavy damage due to:
Answer: B. Strong winds & rain
High‑speed winds, torrential rain, and storm surges together cause destruction.
High‑speed winds, torrential rain, and storm surges together cause destruction.