Atmosphere – Flashcards
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What is the atmosphere?
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A mixture of gases that surrounds a planet, moon, or other celestial body.
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What gases do you find in the atmosphere
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Nitrogen, Ozone, Oxygen, Carbon Dioxide, Water Vapor
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Which gas is the most abundant in the atmosphere?
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Nitrogen
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Why does air have pressure
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because air molecules push down on a surface by force.
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What happens to air pressure as you rise in altitude
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air pressure decreases.
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What do you "get out of breath" so easily when you climb a mountain
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because the air pressure is less and you have less oxygen.
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Put these layers in order from lowest to highest: stratosphere, mesosphere, thermosphere, troposphere. Then for each layer state what happens to the temperature as you travel from the earth's surface to space.
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Troposphere- decrease
stratosphere- increase
mesosphere- decrease
thermosphere- increase
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Which layer does weather occur in the atmosphere?
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troposphere
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Which layer can you find the ozone?
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stratosphere
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What does the ozone protect living things from
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ultraviolet radiation
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Which layer protect us from meteoroids?
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mesosphere
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Radio waves are reflected back to Earth by particles in which layer of the atmosphere
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stratosphere
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Where do most particles originate from in the atmosphere?
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troposphere
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What gas is good for blocking heat in the greenhouse effect?
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water vapor
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What is an isobar? What are its units?
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Measures the difference in air pressure. Millibars.
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What kind of weather should you see if it is a high pressure day?
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Clear
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What happens to temperature of the stratosphere as you go higher in altitude?
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the temperature increases.
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Which layer of the atmosphere has the most amount of mass?
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Troposphere
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What are the factors that influence temperature of the ocean?
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Number of particles and the starting temperature.
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What is the average kinetic energy of the particles in an object called?
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temperature
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What happens to heat with you put a cold spoon into a hot cup of soup?
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the heat transfers onto the spoon
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Which type of heat transfer rotates warm air with cold air due to its changes in density?
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convection
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What is our main source of heat energy?
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the sun
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The higher the temperature the ____the thermal energy. (lower or higher)
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higher
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Which type of heat transfer requires direct contact?
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Conduction
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Which type of heat transfer is being described, "a hot poker burns whatever it comes in contact with"?
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conduction
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In order for heat transfer to occur through conduction between the air and the earth, what must happen?
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they must transfer through electromagnetic waves
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If you put an ice cube in warm water, in what direction does the heat transfer through conduction?
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warm water to the ice cube
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When air becomes warmer, the air expands which _____ kinetic energy. (increases or decreases)
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increases
