CBSE Class 7 Social Science Understanding the Weather (Class 7 NCERT New) Quiz 3

1. Define the term 'meteorology'.

A Meteorology is the examination of plant growth and agriculture. B Meteorology is the study of the atmosphere and weather. C Meteorology is the analysis of geological formations and rocks. D Meteorology is the study of ocean currents and tides.

2. What tools are commonly used in weather forecasting?

A Cloud seeding, wind turbines, solar panels, rain gauges B Satellites, radar systems, weather stations, computer models C Thermometers, barometers, compasses, anemometers D GPS devices, drones, smartphones, weather balloons

3. Explain the term 'barometric pressure'.

A Barometric pressure is the force exerted by wind on a surface. B Barometric pressure refers to the humidity levels in the air. C Barometric pressure is the temperature of the atmosphere at sea level. D Barometric pressure is the pressure exerted by the atmosphere at a given point, measured using a barometer.

4. What does a weather radar do?

A A weather radar measures temperature and humidity levels. B A weather radar analyzes air pressure and wind speed. C A weather radar predicts future weather events accurately. D A weather radar detects and tracks precipitation and weather patterns.

5. What is the significance of humidity in weather?

A Humidity is irrelevant to temperature changes. B Humidity only affects air quality, not weather. C Humidity is significant in weather as it affects precipitation, temperature perception, and overall climate conditions. D Humidity has no impact on weather patterns.

6. Define 'front' in meteorological terms.

A A front is a boundary between two different air masses. B A front is a specific type of cloud formation. C A front is a measurement of temperature changes. D A front is a type of weather phenomenon.

7. What is the purpose of a weather balloon?

A To collect atmospheric data for weather forecasting. B To provide entertainment during weather events. C To measure wind speed at high altitudes. D To track animal migrations in the atmosphere.

8. What does the term 'precipitation' refer to?

A Precipitation is a type of cloud formation in the sky. B Precipitation is the process of water being absorbed by plants. C Precipitation is water that falls from the atmosphere to the Earth's surface. D Precipitation refers to the evaporation of water from the ground.

9. How do meteorologists use satellite imagery?

A Meteorologists use satellite imagery to predict earthquakes and volcanic eruptions. B Meteorologists use satellite imagery to monitor weather patterns and track storms. C Meteorologists use satellite imagery to assess air quality and pollution levels. D Meteorologists use satellite imagery to analyze ocean currents and marine life.

10. What is the meaning of 'wind chill' and how is it calculated?

A Wind chill is the perceived decrease in temperature felt by the body due to the flow of air. It is calculated using a formula that combines wind speed and air temperature. B It is calculated by averaging the temperature over a week. C Wind chill refers to the increase in temperature due to humidity. D Wind chill is the actual temperature measured by a thermometer.