The si metric unit Study guides, Class notes & Summaries

Chapter 1: Chemical Foundations 1. Which of the following is an example of a quantitative observation? A) The piece of metal is longer than the piece of wood. B) Solution 1 is much darker than solution 2. C) The liquid in beaker A is blue. D) The temperature of the liquid is 60°C. E) At least two of the above (A-D) are quantitative observations. ANS: D DIF: Easy REF: 1.2 KEY: Chemistry | general chemistry | general concepts | scientific method MSC: Conceptual 2. A quantitative observa...

Chapter 01 - Chemistry and Measurement 1. What is a scientific theory? a. It is a collection of experimental data. b. It is an assertion of scientific fact. c. It is a guess or conjecture about natural phenomena. d. It is a fundamental relationship of nature. e. It is an explanation of natural phenomena that has undergone significant testing. ANSWER: POINTS: DIFFICULTY: REFERENCES: HAS VARIABLES: LEARNING OBJECTIVE S: e 1 easy 1.2 False GENE.EBBI.13.1 - Understand how the scien...

Chemistry correct answers The study of composition, structure, properties, and reactions of matter Matter correct answers Any material that has mass and occupies space Chemical correct answers Any substance (matter) that has specific composition obtained by or used in chemical reactions Branches of Chemistry correct answers organic chemistry, inorganic chemistry, biochemistry, analytical chemistry, physical chemistry Scientific method correct answers The process used by scientists to...

The study of energy and forces of matter Physics The study of the properties of matter and how matter changes; atoms, molecules and their interactions to form substances Chemistry the study of the moon, stars, and other objects in space astronomy The scientific study of earth and the universe around it including structure, materials and processes Earth Science The experimental factor that is manipulated; the variable whose effect is being studied. independent var...

- FIELD OF VIEW - The area visible in an image. Usually given as the diameter of the region. HOW LARGE IS THE FIELD OF VIEW? - 1 mile wide or 1.6 km wide WHAT TYPE OF SYSTEM DO ALL SCIENTISTS USE TO MEASURE SIZES? - The metric system. What is the SI unit of force? - The newton named after Isaac newton What is the SI unit of energy? - Joule (J) How is density expressed in Si units? - Kilograms per cubic meter Temperature is expressed on what scale? - Kelvin scale What is the ...

Anything that has mass and takes up space - Answer-Matter A set of controlled observations that test a hypothesis - Answer-Experiment A measure that reflects the amount of matter - Answer-Mass A characteristic of matter that can be observed or measured without changing the sample's composition. Example: density, color, taste, hardness, and melting point - Answer-Physical property A form of matter that flows, has constant volume, and takes the shape of its container. - AnswerLiquid One tha...

Natural Number Is a number greater than 0 and has no decimal or fraction attached. Ex: (1,2,3,4,etc...) Whole Number Are natural numbers and the number 0 (0,1,2,3,4,etc) Integers Includes positive numbers, zero, and negative numbers. Ex: (-1,0,1) Rational Number A number that can be written as a fraction with a numerator and a denominator that are integers. The decimal representation of a rational number either ends or repeats. Irrational Number a number that can NOT be ...

FE Electrical Exam Complete Solutions With Latest Questions And Answers 2024 A+. Define Enthalpy Correct Answer: total energy of a system Which of the following is true of the electric field intensity about an isolated point charge? A. It varies directly as the distance to the charge. B. It varies inversely as the distance to the charge. C. It varies directly as the square of the distance to the charge. D. It varies inversely as the square of the distance to the charge. Correct Answer: D. ...

FE Electrical Exam Questions With Answers Latest Updated 2024/2025 (100% Correct) Define Enthalpy Correct Answer: total energy of a system Which of the following is true of the electric field intensity about an isolated point charge? A. It varies directly as the distance to the charge. B. It varies inversely as the distance to the charge. C. It varies directly as the square of the distance to the charge. D. It varies inversely as the square of the distance to the charge. Correct Answer: D. ...

WGU-C165: Integrated Physical Science Questions and Answers 2023 Chemistry: The study of atoms and molecules, their structures, and their interactions to form various substances. Physics: The study of forces, energy and motion. Earth Science: This field focuses on Earth's structure and composition, as well as the processes that change Earth, such as volcanic and seismic activity. Physical Science: The scientific study of nonliving matter. Ex: chemistry, physics, and Ea...