WGU C165 Integrated Physical Science Exam 2025/2026 Complete Questions with Correct Detailed Answers || 100% Guaranteed Pass!! <Latest Version>

WGU C165 Integrated Physical Science Exam 2025/2026 Complete Questions with Correct Detailed Answers || 100% Guaranteed Pass!! &lt;Latest Version&gt; 1. Newton's Third Law - ANSWER For every action there is an equal and opposite reaction 2. Friction - ANSWER A force that opposes motion between two surfaces that are in contact 3. static friction - ANSWER Friction that acts on objects that are not moving 4. kinetic friction - ANSWER Friction between moving surfaces against one another has constant contact 5. If more water vapor was present in Earth's atmosphere, what would happen to Earth's temperature? - ANSWER The temperature would increase. 6. The most abundant greenhouse gas in volcanic eruptions is __________. - ANSWER water vapor 7. Solar radiation __________. - ANSWER has been increasing over the past several billion years 8. Which of the following is a natural process that adds carbon dioxide to the atmosphere? - ANSWER respiration 9. Plants remove carbon dioxide from the atmosphere and cutting down forests - ANSWER increases the rate of global warming. 10. If the mass of the box increases, but the force remains the same, the box's acceleration will - ANSWER decrease 11. Why does San Francisco have earthquakes? - ANSWER San Francisco lies along the boundary between the North American plate and the Pacific plate. At this location, they are grinding past each other, occasionally slipping suddenly along a transform fault. 12. If the mass of an object increases, - ANSWER a given force will produce less acceleration. 13. When force increases - ANSWER acceleration also increases, according to Newton's second law. 14. The net force acting on an object moving in a straight line at a constant speed - ANSWER is zero 15. Friction is the force that - ANSWER opposes motion of an object 16. A force of friction does not exist if - ANSWER two objects are not touching. 17. If the distance is doubled, the force of gravity - ANSWER decreases 18. Which of the following is the LEAST abundant in Earth's atmosphere? - ANSWER Ozone is a very small fraction of a percent of Earth's atmosphere and therefore not a main component. 19. This gas is generally not reactive and is the most abundant in the atmosphere. - ANSWER Nitrogen 20. This gas is used by plants to make organic compounds. - ANSWER Carbon Dioxide 21. This gas also exists as a solid and liquid at Earth temperature and cycles between the atmosphere, land, and oceans. - ANSWER Water Vapor 22. Describe how and why air density changes with changes in altitude. - ANSWER Air density decreases with an increase in altitude because air particles have mass and are pulled down by Earth's gravity. 23. Density is defined as - ANSWER mass divided by volume. 24. Nitrogen is about _____ of the Earths atmosphere - ANSWER 78% 25. A mechanical wave cannot travel through a - ANSWER vacuum. 26. In which layer is the ozone layer located? - ANSWER Stratosphere 27. Where does Earth's weather happen? - ANSWER Troposphere 28. The troposphere is - ANSWER the densest of the atmospheric layers. 29. The exosphere is the least - ANSWER dense atmospheric layer. 30. The International Space Station orbits Earth within the - ANSWER thermosphere. 31. This is the coldest layer, with temperatures down to -90°C (194°F). The air is very thin, but still thick enough to burn up meteors. - ANSWER Mesosphere 32. Temperatures are very high here, although the density of air molecules is very low. The International Space Station orbits in this layer. - ANSWER Thremosphere 33. The air is very thin here. A vacuum exists above this layer. - ANSWER exosphere. 34. Sound waves cannot travel in a vacuum because - ANSWER they are mechanical waves 35. Atmospheric pressure increases as humidity - ANSWER decreases. 36. Temperature decreases with altitude in the - ANSWER troposphere. 37. The warm, moist air has a lower pressure and will - ANSWER rise above the cold, dry air. 38. Air pressure decreases with - ANSWER temperature and humidity, so a warm, moist air mass will have a lower pressure than a cold, dry air mass. 39. A pure substance contains - ANSWER a single type of element or compound. 40. Warm air is less dense than - ANSWER cold air 41. Wind strength depends on differences in - ANSWER air pressure 42. Which of the following factors MOST DIRECTLY affect the strength and direction of winds? - ANSWER differences in air pressure and Earth's rotation 43. Because of the tilt of Earth, different latitudes on Earth experience different - ANSWER temperatures 44. These prevailing winds were originally blowing from the equator toward the - ANSWER South Pole. 45. prevailing winds - ANSWER get deflected from northsouth direction, due to the Coriolis effect, which exists because of Earth's rotation. 46. Which statement describes the trade winds? - ANSWER The trade winds travel toward the low-pressure system near the equator but veer westward because of the Coriolis effect. 47. As warm air rises it tends to - ANSWER cool and become more dense 48. The largest reservoir(s) of freshwater (non-salt) on Earth is (are) - ANSWER Glaciers and ice caps 49. The water cycle is driven by - ANSWER solar energy and gravity. 50. When a cloud forms water vapor condenses - ANSWER which releases heat 51. Which of the following processes absorb heat and release water vapor to the atmosphere? - ANSWER Both evaporation and transpiration absorb heat to convert liquid water to water vapor. 52. Condensation is a phase change from - ANSWER gas to liquid. 53. Evaporation is a phase change from - ANSWER liquid to gas. 54. Rain falls back toward Earth's surface because of - ANSWER gravity 55. Usually when a moist warm front goes through an area - ANSWER both temperature and humidity increase. 56. When an anticyclone and a depression are side by side, the air flows differently lower in the atmosphere than it does higher in the atmosphere. Which direction does the air move high up in the atmosphere? - ANSWER The warm air in the depression cools as it rises and becomes more dense. This dense air then moves toward the anticyclone. 57. At a cold front - ANSWER Cold air displaces warm air at a cold front. 58. Which pressure system is associated with hot days and cold nights? - ANSWER high pressure system 59. high pressure system - ANSWER lower temperatures, clear skies, very small amount of precipitation 60. Cold air in a high pressure system warms as it sinks, and as a result, water in the air - ANSWER evaporates 61. A depression is a - ANSWER low-pressure area in which warm air rises 62. A mixture is a substance in which atoms - ANSWER are not present in a fixed ratio. 63. Properties of particles, such as atoms or molecules, are - ANSWER microscopic properties. 64. Water is a liquid at room temperature. Lowering the temperature causes the water to become solid. This solidification is achieved primarily by - ANSWER removing energy from the molecules or atoms 65. Gases are compressible because - ANSWER the particles are far apart and can be pushed closer together. 66. A galaxy is - ANSWER a group of billions of stars held together by the gravitational force between the stars and other celestial objects, such as black holes 67. Newton's law of universal gravitation states that - ANSWER gravity acts between every pair of objects. 68. What force accounts for our moon moving in a nearly circular path around Earth? - ANSWER gravity between Earth and the moon 69. Earth's rotation on its axis produces - ANSWER day and night 70. A chemical is a substance that contains - ANSWER one type of atom or a group of atoms in a fixed ratio. 71. Weathering is - ANSWER the physical or chemical breakdown of rock or soil. 72. All of the following contribute to weathering - ANSWER acid rain, water, tree roots