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Quiz 2: Understanding Earth's Weather and Atmospheric Pressure

Quiz by Mr.MD Showket Hasan

Grade 7
Science
Thailand Core Curriculum

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19 questions
Show answers
  • Q1
    What is the primary function of a Stevenson screen in weather observation?
    To amplify sound waves for better weather prediction.
    To protect weather instruments from direct sunlight and precipitation.
    To measure wind speed.
    To collect rainwater samples.
    30s
    SC7.CPE.1
  • Q2
    Which of the following statements accurately describes the relationship between altitude and air temperature?
    Air temperature increases with increasing altitude.
    Air temperature remains constant regardless of altitude.
    Air temperature generally decreases with increasing altitude.
    Altitude has no consistent effect on air temperature.
    30s
  • Q3
    Which type of cloud is typically associated with thunderstorms and heavy rainfall?
    Cumulonimbus clouds
    Stratus clouds
    Altocumulus clouds
    Cirrus clouds
    30s
  • Q4
    Why does the Southern Hemisphere experience winter when the Northern Hemisphere experiences summer?
    The Southern Hemisphere is farther from the sun during its winter.
    The Southern Hemisphere is tilted away from the sun during its winter.
    The Earth's rotation slows down during the Southern Hemisphere's winter.
    The Southern Hemisphere has more cloud cover during its winter.
    30s
  • Q5
    A weather balloon measures an atmospheric pressure of 0.5 atm. Assuming standard sea-level pressure is 1 atm, what is the approximate altitude of the weather balloon?
    22 kilometres
    11 kilometres
    44 kilometres
    5.5 kilometres
    30s
  • Q6
    During the daytime, which type of surface would typically exhibit a faster rate of temperature increase: a sandy beach or a nearby body of water?
    A sandy beach
    The rate of temperature increase would depend on wind speed.
    Both would exhibit a similar rate of temperature increase.
    A nearby body of water
    30s
  • Q7
    How does the presence of clouds affect nighttime temperatures compared to a clear night sky?
    Clouds generally lead to warmer nighttime temperatures.
    The effect of clouds on nighttime temperatures depends on wind direction.
    Clouds have no significant impact on nighttime temperatures.
    Clouds always result in cooler nighttime temperatures.
    30s
  • Q8
    The image describing the Earth's seasons in the sources highlights equinoxes. Which of the following statements accurately describes an equinox?
    An equinox occurs when the Earth's rotation is at its fastest.
    An equinox occurs when the sun shines equally on both hemispheres.
    An equinox occurs when one hemisphere is tilted directly towards the sun.
    An equinox occurs when the Earth is farthest from the sun.
    30s
  • Q9
    Why are light-coloured surfaces, like glaciers, generally cooler than dark-coloured surfaces, like forests?
    Light-coloured surfaces have lower thermal conductivity.
    Light-coloured surfaces reflect more heat.
    Light-coloured surfaces absorb more heat.
    Light-coloured surfaces emit more heat.
    30s
  • Q10
    A mercury barometer reads 745 mm Hg. Given that 1 atm is equivalent to 760 mm Hg, calculate the atmospheric pressure in atmospheres.
    1.020 atm
    1.035 atm
    0.980 atm
    0.965 atm
    30s
  • Q11
    If the air temperature at sea level is 15°C and decreases by an average of 6°C per 1000 metres of altitude gain, what would be the air temperature at the summit of a 2500-metre mountain?
    1.5°C
    -15°C
    -9°C
    0°C
    30s
  • Q12
    A car travels at a constant speed of 60 kilometres per hour. Calculate the distance the car will cover in 2.5 hours.
    240 kilometres
    120 kilometres
    30 kilometres
    150 kilometres
    30s
  • Q13
    A Six's thermometer indicates a minimum temperature of -4°C and a maximum temperature of 12°C over a 24-hour period. What is the temperature range for the day?
    16°C
    8°C
    14°C
    10°C
    30s
  • Q14
    If the relative humidity is 80% and the air can hold a maximum of 25 grams of water vapour per cubic metre at the current temperature, how much water vapour is present in the air?
    20 grams
    31.25 grams
    4 grams
    12.5 grams
    30s
  • Q15
    A cloud contains 500,000 water droplets, and each droplet has an average mass of 0.0002 grams. Determine the total mass of the water in the cloud in grams.
    100 grams
    0.1 grams
    1 gram
    1000 grams
    30s

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