weather quiz, grade 8
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Questions and Answers

What type of weather is typically associated with high pressure systems?

  • Cool and dry (correct)
  • Stormy with heavy precipitation
  • Warm and humid
  • Frequent thunderstorms

    • Which statement accurately describes the wind movement in a low pressure system?

  • Winds diverge outward from the center
  • Winds flow straight without rotation
  • Winds move clockwise and sink
  • Winds move inward and upward toward the center (correct)

    • What is typically indicated by a falling barometer?

  • Severe clear skies ahead
  • Stability in weather patterns
  • Development of stormy weather (correct)
  • Arrival of a high pressure system

    • How is air movement described in a high pressure system?

    <p>Air sinks and diverges outward</p> Signup and view all the answers

    What is the primary characteristic of air in a low pressure system?

    <p>Warm and wet</p> Signup and view all the answers

    What type of global wind blows from 60° to 30° latitude and is characterized by wet conditions?

    <p>Westerlies</p> Signup and view all the answers

    Which global wind system is associated with high pressure and weak winds at 30° latitude?

    <p>Horse Latitudes</p> Signup and view all the answers

    What is the characteristic of the air associated with Polar Easterlies?

    <p>Cold and sinking</p> Signup and view all the answers

    Which global wind pattern blows toward the equator and originates at 30° latitude?

    <p>Trade Winds</p> Signup and view all the answers

    The Coriolis effect influences the movement of winds due to what factor?

    <p>The Earth's rotation</p> Signup and view all the answers

    Which process describes water moving from plants to the atmosphere?

    <p>Transpiration</p> Signup and view all the answers

    What is the process called when water changes from a gas to a liquid?

    <p>Condensation</p> Signup and view all the answers

    Which term describes the point at which condensation occurs due to temperature?

    <p>Dew point</p> Signup and view all the answers

    During which process does precipitation flow over land surfaces instead of being absorbed?

    <p>Runoff</p> Signup and view all the answers

    What do we call the water that is stored underground after infiltration?

    <p>Ground water</p> Signup and view all the answers

    What is the primary characteristic of a cold front?

    <p>Heavy rain showers and thunderstorms</p> Signup and view all the answers

    What type of front typically results in prolonged periods of rain or drizzle?

    <p>Stationary Front</p> Signup and view all the answers

    Which front involves a cold front overtaking a warm front?

    <p>Occluded Front</p> Signup and view all the answers

    What is a common effect of warm air rising over cooler air in weather fronts?

    <p>Formation of clouds and precipitation</p> Signup and view all the answers

    How do warm fronts generally differ from cold fronts in terms of movement?

    <p>They move slowly compared to cold fronts</p> Signup and view all the answers

    What is water vapor primarily characterized as?

    <p>A colorless, odorless gas</p> Signup and view all the answers

    What does relative humidity measure?

    <p>How much water vapor air is holding relative to its capacity</p> Signup and view all the answers

    Which instrument is used to measure relative humidity?

    <p>A sling psychrometer</p> Signup and view all the answers

    What happens to relative humidity when the temperature decreases while moisture remains the same?

    <p>Relative humidity increases</p> Signup and view all the answers

    What does the dew point indicate?

    <p>The temperature at which humidity condenses</p> Signup and view all the answers

    What causes air to cool as it rises in the atmosphere?

    <p>Expansion of warm air</p> Signup and view all the answers

    Which instrument is used to measure wind speed?

    <p>Anemometer</p> Signup and view all the answers

    How is wind direction typically indicated?

    <p>From the direction it originates</p> Signup and view all the answers

    What is a convection cell?

    <p>A pattern of air movement</p> Signup and view all the answers

    What is the primary driver behind wind movement?

    <p>Differences in air pressure</p> Signup and view all the answers

    What characteristic is true of every point on an isoline?

    <p>Each point must have the same value.</p> Signup and view all the answers

    Which statement about the interaction of isolines is accurate?

    <p>Isolines must not touch or cross each other.</p> Signup and view all the answers

    What does a steep gradient indicate about the isolines?

    <p>There is a rapid change over short distances.</p> Signup and view all the answers

    For which measurement are isobars used?

    <p>Pressure.</p> Signup and view all the answers

    Which of the following is true regarding how two isolines behave when they cannot join?

    <p>One must extend off the page, being higher on one side and lower on the other.</p> Signup and view all the answers

    What describes the process of conduction in heat transfer?

    <p>Heat is transferred through direct contact between materials.</p> Signup and view all the answers

    What causes convection currents in a fluid?

    <p>Temperature differences cause variations in density, leading to movement.</p> Signup and view all the answers

    In the context of heat transfer, what does radiation refer to?

    <p>Energy transfer through empty space in the form of waves.</p> Signup and view all the answers

    Which statement is true regarding convection in solids?

    <p>Molecules in solids cannot move, so convection does not occur.</p> Signup and view all the answers

    Based on the convection diagram described, what is the main driver for heat moving away from the heat source?

    <p>The expansion and rising of heated fluid.</p> Signup and view all the answers

    What happens to air when it is heated?

    <p>It goes up and creates low pressure.</p> Signup and view all the answers

    Which of the following statements about the relationship between altitude and air pressure is correct?

    <p>Higher altitude leads to lower air pressure.</p> Signup and view all the answers

    What unit is equivalent to millibars (mb) in measuring air pressure?

    <p>Hectopascals (hPa)</p> Signup and view all the answers

    At which temperature does water freeze in Fahrenheit?

    <p>32°F</p> Signup and view all the answers

    What occurs when lower pressure is present at the surface of the Earth?

    <p>Air rises and moisture leads to storm development.</p> Signup and view all the answers

    What is the formula used to calculate the volume of a cube?

    <p>Length × Width × Height</p> Signup and view all the answers

    Which method can be used to determine the volume of irregular solids?

    <p>Water displacement method</p> Signup and view all the answers

    If the density of a substance is 709 g/cm³ and its volume is 400 cm³, what can be determined about its mass?

    <p>Mass is equal to 283,600 g.</p> Signup and view all the answers

    What is the equivalent of the density of water in g/mL?

    <p>1 g/mL</p> Signup and view all the answers

    Which of the following units can be used interchangeably for volume?

    <p>Cubic centimeters (cm³) and milliliters (mL)</p> Signup and view all the answers

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