WGU C165 - Integrated Physical Sciences Final Exam Questions and Answers Latest Graded A+ (2023/2024)

WGU C165 - Integrated Physical Sciences Final Exam Questions and Answers Latest Graded A+ (2023/2024). Which of the following terms best describes a research project that involves sending a space probe to a distant asteroid to land on it and collect data? a controlled experiment a field study a laboratory experiment Even though the scientists are not on the asteroid, they are conducting data collection in the field. Question 6 of 14 A main reason to do a field study rather than a laboratory experiment is if Question 7 of 14 Which of these fields depends the MOST on observational studies? physics Earth science chemistry While scientists today have many techniques and procedures to replicate unique experiments that answer can answer questions about the Earth, most of the data collected is still observed. Question 8 of 14 The kinetic theory of gases is based on the assumption that the molecules that form the gas are in random motion and bounce off the walls of their container and off each other as if they were billiard balls. The forces between real molecules are more complicated. This is an example of An observational study focuses on collecting data and observing phenomena in the field or laboratory. Question 9 of 14 Why can’t astronomers carry out a scientific research study to determine which visible star, other than our sun, is the nicest? The Hubble telescope has better uses. Existing telescopes aren’t powerful enough. There is no way to prove any answer wrong. A project of that sort cannot get funding. “Nicest” is subjective. Consider the people who like summer versus winter, or vice versa. Question 10 of 14 Galileo found that when air resistance can be ignored, heavier and lighter objects fall in the same way. He tested this rule and confirmed it was consistent with all available data. The rule Galileo found can BEST be described as a The rule Galileo found was a tested conclusion describing something very specific that happens, and was supported by all available data. Question 11 of 14 Which of these describes a statement that has usually NOT yet been tested? a hypothesis a model a theory a law A hypothesis is a testable statement about how something in nature works. It is typically the best tentative assumption that researchers can make based on the evidence they already have at that point. Question 12 of 14 It is often said that you can never prove a scientific theory right. Why? It is impossible to directly test every single instance in which it applies. A theory is just a guess. Science can never prove anything either right or wrong. A theory becomes a law once it is tested that thoroughly. Laws are statements of simply what is observed in all available experiments, while theories are explanations and typically apply to whole groups of phenomena. Laws do not become theories. Question 13 of 14 Which of these is generally regarded by scientists to be the basis for deciding issues in science? personal faith in the particular idea proposed whether the idea is the simplest one the researcher can think of the reputation of the researchers for careful work empirical evidence including experiments and observations Laws and theories are based on and supported by a wealth of evidence and facts. Question 14 of 14 Which of the following describes how scientific investigations are carried out? Scientists settle scientific issues by staging a debate to decide which side gave the best presentation. Scientists settle scientific issues by forming a consensus in the scientific community about which explanation is the most appealing. Scientists all follow the same list of four steps to make a discovery: observe something, hypothesize about it, test the hypothesis, and form a theory. Scientists use different procedures but rely on evidence and testing to confirm their ideas. Scientists follow many different procedures, depending on the nature of the research problem and their own creativity in finding ways to gather information. UNITS AND MEASUREMENTS Question 1 of 5 Why is it important to have standard measures for physical quantities? To make measurements, such as length, easier to perform. To make it more difficult for scientists to exchange and compare results of their measurements. To allow scientists from other countries to use standard measures and not make up their own units To allow for the comparison of measurements with anyone familiar with the measurement system. This is irrelevant to standard measures. Question 2 of 5 What is the official SI base unit for time? second hour meters/second kilograms Seconds measure time. Question 3 of 5 Which of these has values that are expressed in terms of a derived unit in the SI system? area mass length time Time is one specific measurement. Question 4 of 5 What device is commonly used to measure temperature? ruler thermometer clock scale Thermometers use the expansion property of a fluid with increasing temperature to measure temperature. Question 5 of 5 Which of the following pairs of variables has an inverse relationship? the speed of a hurricane's winds and the amount of damage they cause" how hard an object is pushed and how fast it moves Your driving speed and the time required to drive a certain distance the volume of a sample of liquid and the mass of the sample This is an inverse relationship because, as your speed increases, the amount of time to reach a specific point decreases. Earth science physics chemistry Chemistry deals with how atoms join to each other in different ways to form molecules of various substances. SCIENTIFIC INQUIRY Question 1 of 20 Which field of physical science deals MOST directly with which atoms join together to form molecules, such as the water molecule or the nitrogen molecule, represented below? Question 2 of 20 Which field of physical science MOST directly explains how the motion of the continents over 100 million years led to mountains and volcanoes in some places above land, and deep ocean trenches in other places beneath the ocean surface? chemistry Earth science physics Earth’s features and the processes that change them are the subject matter of Earth science.