2024 WGU C165 Unit 1-5 New Full Questions and Answers ( Included ) 100% Correct
- Physics
Answer: The study of forces, energy, motion
- Chemistry
Answer: The study of atoms and molecules, their structures, and their inter- actions to form substances
- Earth science
Answer: The study of the Earth's structure and composition, and process- es that change Earth
- Variables
Answer: The changing quantities in an experiment
- independent variable
Answer: What you change in an experiment on purpose
- dependent variable
Answer: The variable that changes because of an independent variable
- control variable
Answer: The variable(s) you don't want to study, need to be either eliminated or kept constant
- observational study
Answer: When systems are observed as they appear in nature, researchers do not attempt to change them
- physical model
Answer: A model of a physical phenomenon, such as a planetary system
- conceptual model
Answer: A model used to visualize things that cannot be seen, such as atoms
- mathematical model
Answer: A model that treats physical objects/phenomena using mathematical methods
- computer model
Answer: A detailed, complex model calculated by a computer
- principle of falsification
Answer: Principle that only falsifiable statements can be subject to scientific inquiry 1 / 2
- hypothesis
Answer: A testable statement about how something in nature works
- law
Answer: A concise statement that is supported by scientific evidence and repeated experiments, describes a widespread pattern in nature (what)
- theory
Answer: A statement that explains a wide range of observations, supported by a large body of scientific evidence (how/why)
- Field study
Answer: bservational studies done outside a laboratory setting. Scientists performing field studies often collect data by observing, without changing or manipulating the system
- laboratory study
Answer: researchers study the system of interest in a highly con- trolled, artificial setting
- big bang theory
Answer: describes how the universe developed, starting from about
0.01 seconds after it began (which astronomers think, based on astronomical observations and calculations, was roughly 13.8 billion years ago)
- plate tectonics
Answer: tates that Earth's outermost layer, the lithosphere, is broken up into many large pieces called tectonic plates
- atomic theory
Answer: matter is composed of atoms, and that elements are composed of only one kind of atom
- meter
Answer: Base unit of length
- kilogram
Answer: Base unit of mass
- second
Answer: Base unit of time
- kelvin
Answer: Base unit of temperature
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