C165 – Integrated Physical Science (WGU) Exam Study Questions with Correct Answers

C165 – Integrated Physical Science (WGU) Exam Study Questions with Correct Answers 1. Physics - ANSWER The study of forces, energy, motion 2. Chemistry - ANSWER The study of atoms and molecules, their structures, and their interactions to form substances 3. Earth science - ANSWER The study of the Earth's structure and composition, and processes that change Earth 4. essential attributes of science - ANSWER Studies the natural world Uses testable ideas Relies on data from observations/experiments Presented for evaluation by other scientists Leads to further questions/research 5. variables - ANSWER The changing quantities in an experiment 6. independent variable - ANSWER What you change in an experiment on purpose 7. dependent variable - ANSWER The variable that changes because of an independent variable 8. control variable - ANSWER The variable(s) you don't want to study, need to be either eliminated or kept constant 9. oceanic to oceanic boundary - ANSWER A convergent boundary between two seafloor plates, causing volcanic islands and large earthquakes nental to continental boundary - ANSWER A convergent boundary between two continental plates with no subduction, causing tall mountain ranges with no volcanoes but large earthquakes 11.Troposphere - ANSWER the lowest layer of Earth's atmosphere, where weather occurs 12.Ozone layer - ANSWER Protective layer in atmosphere that shields earth from UV radiation. 13.Stratosphere - ANSWER The second-lowest layer of Earth's atmosphere, contains the ozone layer 14.Mesosphere - ANSWER The layer of Earth's atmosphere immediately above the stratosphere, where meteors burn up 15.Thermosphere - ANSWER The atmospheric layer above the mesosphere, where auroras happen and the ISS flies 16.Exosphere - ANSWER The last layer of the atmosphere, beyond which exists a vacuum 17.Convection - ANSWER The transfer of thermal energy by the circulation or movement of a liquid or gas ction cell - ANSWER A circular pattern of rising warm air and sinking cool air 19.Transpiration - ANSWER Evaporation of water from the leaves of a plant 20.Infiltration - ANSWER Flow of water from the land surface into the subsurface 21.Groundwater - ANSWER water that is in the ground 22.Runoff - ANSWER Water that is not soaked into the ground 23.Air mass - ANSWER Large body of air with the same temperature, humidity, and pressure 24.Front - ANSWER A boundary between two or more air masses 25.Warm front - ANSWER A front along which a warm air mass moves over a mass of cooler air front - ANSWER A front where cold air moves in under a warm air mass. pressure system (anticyclone) - ANSWER An area of dense air that sinks and warms, develops in cold areas, and removes clouds (hot day/cold night) vational study - ANSWER When systems are observed as they appear in nature, researchers do not attempt to change them cal model - ANSWER A model of a physical phenomenon, such as a planetary system ptual model - ANSWER A model used to visualize things that cannot be seen, such as atoms matical model - ANSWER A model that treats physical objects/phenomena using mathematical methods 32.Static friction - ANSWER Friction between two objects touching but not moving against each other 33.Fluid resistance - ANSWER Friction when an object moves through a gas or liquid 34.Gravity - ANSWER Attractive force between objects directly proportional to their masses and inversely proportional to the square of their distance