Group-3 Unit Test PDF

UNIT TEST MULTIPLE CHOICE TEST: Instructions: Circle the correct letter for each question. 1. Choose the correct statement. I. Air density is simply the mass of air above a given level. II. Most of our atmosphere is crowded close to the earth’s surface, which causes air pressure to...

UNIT TEST MULTIPLE CHOICE TEST: Instructions: Circle the correct letter for each question. 1. Choose the correct statement. I. Air density is simply the mass of air above a given level. II. Most of our atmosphere is crowded close to the earth’s surface, which causes air pressure to decrease with height. III. If the temperature of a gas is held constant, the gas becomes less dense as the temperature goes up, and more dense as the temperature goes down. A. One statement is correct B. Two statements are correct C. All statements are correct D. None of the above 2. Choose the correct statement. I. If the density of a gas is held constant, the gas becomes less dense as the temperature goes up, and more dense as the temperature goes down. II. If we hold the temperature constant, the air at a higher pressure is more dense than air at a lower pressure. III. Air pressure is greatest at the surface and decreases as we move up into the atmosphere. A. One statement is correct B. Two statements are correct C. All statements are correct D. None of the above 3. Choose the correct statement. I. Atmospheric pressure always decreases with increasing height. II. Air temperature is the degree of hotness or coldness of the air. III. At a given atmospheric pressure, air that is cold is more dense than air that is warm. A. One statement is correct B. Two statements are correct C. All statements are correct D. None of the above 4. Which of the following statements about horizontal difference in temperature is correct? A. Horizontal difference in temperature creates a horizontal difference in pressure B. Horizontal difference in temperature causes the horizontal difference to decrease C. Horizontal difference in temperature creates a horizontal difference in the movement of air D. Horizontal difference in temperature creates a horizontal difference in the cooling of air 5. What happens if there is a removal of air involved? A. The surface temperature will remain constant B. The surface temperature will rise C. The surface temperature will drop D. Both A and B 6. All of the answers about atmospheric pressure are correct, EXCEPT?  I. A decrease in the amount of air above the surface causes the air pressure to fall. II. Heating or cooling of the air can establish horizontal variations in pressure that cause the air to move. III. The addition in the amount of air above the surface causes the air pressure to remain constant. A. I only B. III only C. II only D. I and II 7. What can be inferred based on the picture below? A. The atmospheric pressure decreases more rapidly in the cold column of air B. The atmospheric pressure increases in the cold column of air C. The atmospheric pressure in cold air moves from lower to higher pressure D. The cold air moves in a less dense air 8. Which of the following refers to the most commonly used barometer and it consists of a glass column with mercury and inches markings on it? A. Altimeter B. Manometer C. Aneroid Barometer D. Mercury Barometer 9. 15 hPa equals to _____ millibar. A. 15 mb B. 150 mb C. 1.5 x 10³ mb D. 1.5 x 10⁶ mb 10. Which of the following is NOT the factor that affects in reading the height of the mercury column to obtain air pressure in the barometer? A. fluidity B. Temperature C. Force of gravity D. None of the above 11. CJ is curious about the kind of map that meteorologists use to display areas of high and low pressure as well as arrows indicating the direction of the wind. What type of map is Chester referring to? A. World map B. Weather map C. Surface map  D. Upper - air map 12. What will be the effect in the weather if a reading in a certain barometer is rising and falling respectively? A. It is expected to have good weather B. It is expected to have cloudy weather C. It is expected to have good weather then cloudy weather D. It is expected to have cloudy weather then good weather 13. Surface high pressure areas associated with _____________air and _____________weather whereas surface low pressure area are associated with ______________ air and ____________ weather. A. rising, fair, sinking, cloudy B. rising, cloudy, sinking, fair C. sinking, fair, rising, cloudy D. sinking, cloudy, rising, fair 14. The wind belt observed on the poleward side of the polar front is called the: A. Polar easterlies B. Prevailing westerlies C. Northeast trades D. Doldrums 15. Air moving eastward more slowly than the earth rotates, would appear to be ____ wind to an observer on the earth. A. A counterclockwise B. An east C. An upward D. A west 16. Due to the Coriolis effect, any current of air or water is deflected to the ____ in the northern hemisphere and to the _____ in the southern hemisphere. A. East and East B. East and West C. West and East D. West and West 17. In the figure below, the letters A through D represent wind names. Which of the following is false? A. A and B represent the "westerlies" B. A and C represent "trade winds" C. C and D represent "trade winds" D. None of these statements are false 18. What is the reason in which the angle of the wind crosses the isobars varies, but averages about 30°? A. Isobars  B. Wind direction C. Coriolis force D. Friction 19. It is the piling up of air or the atmospheric condition that exists when the wind cause a horizontal net inflow of air into a specified region. A. Convergence B. Divergence C. Transform D. Surface winds 20. Why, then, doesn’t the air rush off into space? A. Because the upward-directed pressure gradient force is exactly balanced by the downward force of gravity B. Hydrostatic balance C. It is because the earth's gravity is not strong enough to hold onto its atmosphere and keep it from drifting into space D. Because the upward-directed pressure gradient force is nearly always exactly balanced by the downward force of gravity 21. Winds blow in_____the center of low pressure and_____away from the center of high pressure. A. Toward, Outward B. Forward. Backward C. Upward, Downard D. None of the above 22. If lows and highs aloft were always directly above lows and highs at the surface, what will happen to the surface system? A. Accumulate B. Grow C. Dissipate D. Develop 23. What is the relationship between the air pressure and height? A. Inversely proportional B. Joint proportional C. Directly proportional D. Not proportional 24. Supposed you’re facing north, what is the wind direction expressed in degrees if you feel the wind moving from your left? A. 270° B. 180° C. 90° D. 360° 25. How can you determine the direction of wind easily? A. By looking at the wind B. By solving for the wind direction C. By installing a weather app D. By watching the movements of objects 26. What is a wind instrument that is used to indicate wind speed and direction, also called as skyvane.What is it? A. Wind sock B. Aerovane C. Anemometer D. Wind vane 27. In the early 1970s, people considered using ____________ to run generators that produce electricity. A. Wind vanes B. Wind-mills C. Wind turbines D. Panemone 28. A wind rose indicates the percentage of time the wind blows from different directions. Which is the correct explanation for the given wind rose? A. The prevailing wind is SE and the wind of least frequency is NNE. B. The prevailing wind is SE and the wind of least frequency is NE. C. The prevailing wind is NW and the wind of least frequency is NE. D. The prevailing wind is NW and the wind of least frequency is NNE. 29. Imagine you’re waiting for a jeep, you’re already hungry, but you suddenly smell a newly unwrapped burger from a famous fast food restaurant just a few steps aways from you. Why did you know that the smell came from that restaurant? A. Because you’re already hungry so all of your senses are heightened. B. Because the smell drifted with the wind and alerted you of the wind direction. C. Because the wind is moving away from you. D. Because you know the smell of that restaurant’s famous burger. 30. Which of the following is/are true about wind? Statement I: Wind is characterized by its direction, gustiness, and speed. Statement II: Wind direction may also be expressed in degrees about 180° or as compass points. Statement III: Wind is not a strong weather element that can affect our environment. Statement IV: Wind exerts force upon an object thus it can affect our environment in many ways. A. Only one of the statements is true. B. Two of the statements are true. C. All statements are true. D. None of the statements are true. 31. What is the net force that act as the air is directed from higher pressure toward lower pressure at right angles to the isobars?  A. Coriolis force B. Pressure gradient force C. Centripetral force D. Air friction 32. It is _____________ (tightly packed isobars) pro-duce strong pressure gradient forces and high winds; _____________ (widely spaced isobars) pro-duce weak pressure gradient and light winds. A. Compact pressure gradients; wide-spaced pressure gradients B. Gentle pressure gradients; steep pressure gradients C. Wide-spaced gradients; gentle pressure gradients D. Steep pressure gradients; gentle pressure gradients 33. What can be a result from an imbalance between the Coriolis force and the pressure gradient force and inward-directed forces? A. Gradient wind B. Centripetal force C. Cyclonic flow D. Anticyclonic flow 34. What kind of winds blow continuously, predictably, and to far places? A. Mountains breeze B. Global winds C. Sea breeze D. Local winds 35. Where does the initial energy that produces winds come from? A. The moon B. From oceans C. The sun D. All of the above 36. What is the initial cause of atmospheric convection and global winds? A. Continental deflection B. The rotation of the Earth C. Moon's gravity D. Unequal heating of the Earth by the sun 37. Chinook is a? A. Cold wind B. Warm wind C. Moist Wind D. None of the above 38. Which winds are also called Roaring forties? A. Labrador wind B. Westerlies C. Chinook D. Jet stream 39. Loo is a? A. Cold wind B. Hot wind  C. Mild wind D. None of the above 40. What are westerly winds? A. Winds blowing from sub-tropical high pressure areas to sub-polar low pressure areas B. Winds that trade with each other C. Winds blowing from equatorial high pressure areas to sub-tropical low pressure areas D. Winds blowing from equatorial low pressure areas to sub-tropical high pressure areas 41. Westerly winds of Southern Hemisphere ______. A. Weaker and maintain a constant direction than its counterpart in Northern Hemisphere B. Are stronger and maintain a constant direction than its counterpart in Northern Hemisphere areas C. Are stronger but do not maintain a constant direction than its counterpart in Northern Hemisphere D. Blow from equatorial low pressure areas to sub-tropical high pressure areas 42. What is a characteristic of polar fronts? A. Jet stream occurs in the upper troposphere above the polar front B. Frontal meeting of cold polar air and warm subtropical air. C. Associated with storms D. All of the other answers are correct 43. Where would you find the "horse latitudes"? A. Belt of trade winds B. Belt of polar highs C. Belt of subtropical highs D. Belt of westerly winds 44. Consider the following statements about jet streams: I. Jet streams are important component of westerly flow which influences weather in north and northwestern India. II. The jet streams are found mainly in the upper atmosphere or in troposphere. III. Jet streams generally follow a straight path. IV. Jet streams are caused by a combination of a planet's rotation on its axis and atmospheric heating Choose the correct statements: A. I and II only B. I only C. I, II and IV only D. All of the answers 45. When visiting the beach, Aditi observed that a breeze blew in FROM the ocean during the day and out toward the ocean at night. Which factor is MOST responsible for the direction of land and sea breezes in coastal regions? A. The uneven heating between the land and water B. The revolution of Earth around the Sun C. The daily rise and fall of tides in a regular pattern D. The gravitational pull of Earth on the atmosphere 46. Land breeze blows from______ at ______ time A. sea to land, day B. land to sea, night  C. land to land, day D. sea to sea, night 47. A bowl of sand kept out in the sun becomes hotter than a bowl of water kept out in the sun. Identify the correct reason for this. A. Sand gets heated and cooled faster than water B. Hot air from sand rises up C. Sand is heavier than water D. Water gets heated and cooled faster than sand 48. Land breeze and sea breeze are the caused due to A. Convection B. radiation C. Conduction D. Conduction and convection both 49. Warm air over land rising and cool air from the sea taking it's place describes which breeze? A. Land breeze B. Sea-land breeze C. None of the above D. Sea breeze 50. It refers to the effect that causes winds to curve as they move across the Earth's surface, with the deflection being to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. A. Surface winds B. Isobars C. Coriolis force D. Trade winds