We say this galaxy has a lookback time of 1 million years . D) has less mass than the resulting potassium and bromine do. Question Completion Status: Moving to the next question prevents . Publishing results of research projects in peer-reviewed journals enables the scientific and medical community to evaluate the findings themselves. Use the solubility product (Ksp = 1.8 x 10-14) to calculate the solubility of Zn(OH)2 (FW = 99.424) in water expressed in moles per liter at (a) pH 3, (b) pH 7 and (c) pH 10. Scientific results must be verified by a great many scientists. A scientific hypothesis is A absolute B complex C simple D tentative Type MC from CHM 119 at University Of Dubuque [MC] Suppose the distance from the Sun to Pluto, 40au = 6x10km, were compressed to the size of a pen (15cm). , istances from the lake and measures the amount of nitrogen in the sample What is the manipulated variable in this experiment? Scientific knowledge is advanced through a process known as the scientific method. A chemist employed by an airplane manufacturer investigates new . The theory of general relativity says that the observed gravitational effect between masses results from their warping of spacetime . Terms in this set (52) Scientific results must be verified by A) Consulting noted scientific authorities B) Government agencies C) further experiment D) Constructing plausible theories C A brief statement summarizing many observations of a physical phenomenon is called a A) Fact B) Scientific theory C) Scientific law D) hypothesis C What Is the molarity of an $\mathrm{H}_{2} \mathrm{SO}_{4}$ solution if 0.25 L of the solution contains 0.75 mol of $\mathrm{H}_{2} \mathrm{SO}_{4}$? This site is using cookies under cookie policy . A brief statement summarizing many observations of a physical phenomenon is called a: One method of rating complexity in scientific disciplines is with respect to the number of variables that are involved in experiments. These experiments are designed to demonstrate the scientific validity of results produced by the method during routine sample analysis. She is engaged in: a) Basic research is carried out to develop a particular product. project and come out with the same results. Calculate the density of Jupiter. In Albert Einstein 's original treatment, the theory is based on two postulates: [p 1] [1] [2] The laws of physics are invariant (that is, identical) in all inertial frames of reference . Hydrogen peroxide decomposes into water and oxygen when exposed to heat or light. t. e. In physics, the special theory of relativity, or special relativity for short, is a scientific theory regarding the relationship between space and time. It failed to satisfy the verification criterion, according to which for any statement to be meaningful, it has to be able to be verified empirically. Immortality is the concept of eternal life. what is the loss of muscle movement called? Scientific results must be verified by 1)constructing plausible theories 2)government agencies 3)further experiment 4)consulting noted scientific authorities 3)further experiments The following, "The sweet taste of soda is due to the presence of sugar" is classified as a(n).. 1)theory 2)observation 3)law 4)hypothesis 4)hypothesis Therefore, potassium bromide: A) must be a mixture. Course Hero is not sponsored or endorsed by any college or university. Studies have also shown that artificial sweeteners provide little benefit to those who want to lose weight. Establishing that a test method consistently produces reliable analytical results is a critical element of assuring the quality and safety of pharmaceutical products. What characteristics must a hypothesis have to be useful in science? Using the information listed above, does Earth stay the same distance from the Sun throughout the year? To be considered valid, the results of a scientific experiment must be_______. A and B are the same substance. D) An established theory is based on evidence, so the new results must be incorrect. B) The result should be altered so that it matches the established theory. A hypothesis that cannot be falsified is a hypothesis that is automatically consistent with any imaginable phenomenon. The Periodic Table is helpful in all of the following endeavors but one. Being repeatable means that other researchers should be able to perform exactly the same experiments, under the same conditions and generate similar results. This nature of a scientific theory based on falsifiability, however, dictates that a theory can be tested and falsified, but it can never be logically verified. The separation of this mixture: The amount of carbon on the earth, including the atmosphere. [T/F] Constellations are groups of stars that in general are physically close together, all roughly the same distance from Earth. You can specify conditions of storing and accessing cookies in your browser. [Note: 1 ly is about 10km. [MC] Scientific results must be A) hypothetical B) reproducible C) controversial D) believed by at least 50% of all scientists E) believed by 100% of all scientists B [MC] The process of breaking light down into its component colors creates A) a spectrum B) an image C) a pulse D) a hologram E) a movie lmaoo A Ensuring results will be valid and accurate Scientific evidence relies on data, and it is crucial for researchers to ensure that the data they collect is representative of the "true" situation.. 1 lb = 454.55 g 1 ft = 12 in 1 in = 2.54 cm. e. General relativity is a theory of gravitation developed by Albert Einstein between 1907 and 1915. C) cannot be an element. B) alpha particle scattering by thin metal foils. [FITB] Distinct groups of stars, called ___________, were given names by ancient astronomers; stories were associated with them. . Using this method, which of the following disciplines is the most complex? Can I find 1:1 copy brands bags at BabaReplica? Scientific results must be verified by further experiment. Therefore, potassium bromide: A) must be a mixture. [Stabs Clarence] If that is not enough, Ill drown you in a malmsey butt within! Given that 1 butt = 126 gal, in how many liters of malmsey (a foul brew similar to mead) was the unfortunate Clarence about to be drowned? What type of matter did Victoria and her teacher measure? [T/F] When we observe the very distant stars and galaxies, we see them as they are at the present time (or nearly the present time), since light travels at the max possible speed. Whenever I write a paper, review a paper or edit a paper, a key item that I look for is whether the methodology and equipment has been validated, demonstrating the effectiveness (accuracy and reliability) of the research. 1 What is the density of the metal piece in oz/in 3 ? Go to: OVERVIEW OF THE PEER REVIEW PROCESS The peer review process begins when a scientist completes a research study and writes a manuscript that describes the purpose, experimental design, results, and conclusions of the study. must be consistent with the fact that the ocean is of great age. Which of the following might be best approached through the scientific method? Must be based on scientific knowledge, must be logical, and must be falsifiable. E-57 (57.977 amu), E-58 (58.977amu), What is the de Broglie wavelength (m) of an electron with a velocity of 8.20 106m/s. Scientific Law . Promoted by The Penny Hoarder The amount of the sample always equaled 400 mL. Her proposal is called a: Hypothesis How many protons are there in a gold atom? The size of the lake Scientific results must be verified by: A. Constructing plausible theories B. A) The old theory has to be discarded in favor of a new theory. B) the decomposition of compounds by electricity. The scientific method The scientific method begins with scientists forming questions, or hypotheses, and then acquiring the knowledge through observations and experiments to either support or. What is matter? This is an example of: When electricity is passed through molten potassium bromide, two simpler substances, potassium and bromine, are produced. Listed below are the distances, in kilometers (km), between the Sun and Earth for four months of the year. Philosopher Peter Vickers interrogates the science behind the recent IAI News standoff between panpsychism and idealsm and picks up the debate. 15% hydrogen. must be verified by the leading authorities in the field. Some scientists, futurists, and philosophers have theorized about the immortality of the human body, with some suggesting that human immortality may be achievable in the first few decades of the 21st century with the help of certain technologies such as mind uploading (digital immortality). Lookback time is the amount of time light takes to travel to us from a distant object. Physical attractiveness is the degree to which a person's physical features are considered aesthetically pleasing or beautiful.The term often implies sexual attractiveness or desirability, but can also be distinct from either. The DQ for saccharin is: A chemist employed by an airplane manufacturer investigates new adhesives for the purpose of building airplanes without rivets. Scientific results must be verified by . are accurate or explainable. Example: If you do an experiment and the results are testable What health supplements do American children eat? To be considered valid, the results of a scientific experiment must be repeatable. A metallic cube has a mass of 9.0 g and a side of 3.00 cm. If not, what month(s) and during which season (for the Northern Hemisphere) is Earth closest to the Sun? 3) Scientific results must be verified by A) constructing plausible theories. When doing a risk-benefit analysis and determining DQ, which situation is often the most difficult to evaluate from both an individual and societal perspective? How do astronomers commonly determine distances to distant galaxies. the six steps of the scientific method include: 1) asking a question about something you observe, 2) doing background research to learn what is already known about the topic, 3) constructing a hypothesis, 4) experimenting to test the hypothesis, 5) analyzing the data from the experiment and drawing conclusions, and 6) communicating the results to Chapter 1.docx - Chapter 1 1. Scientific results must be verified by . A possible answer to a scientific question. [FITB] The distance travelled by light or by an object moving with a constant speed is equal to speed multiplied by ________. Note that for each location drawn, Earth is correctly shown with its rotational axis tilted at an angle of $23.5^{\circ}$. Ayer argued, there are no facts that can verify metaphysical theories like idealism and realism, one way or another. Methapyrilene, once an active ingredient in certain over-the-counter sleeping pills, was found to be a potent carcinogen (a substance that causes cancer). \begin{matrix} \text{Month} & \text{Earth-Sun Distance}\\ \text{December} & \text{147.2 million km}\\ \text{June} & \text{152.0 million km}\\ \text{September} & \text{150.2 million km}\\ \text{March} & \text{149.0 million km}\\ \end{matrix} When we exploded the hydrogen balloons, which of the following was produced: When we did the electrolysis of water demo, which of the following was produced in the greatest quantity: B) the study of matter and the changes it undergoes. b) Calculate the wavelength (in nm). The desirability quotient (DQ) for methapyrilene is: A substance that cannot be broken down by chemical means into simpler substances is called a(n): When electricity is passed through molten potassium bromide, two simpler substances, potassium and bromine, are produced. Based upon the experiments of his co-workers, Rutherford proposed that: Relative to the mass of the nucleus of an atom, the mass of the electron is: The element tin (Sn) occurs naturally as ten isotopes. Some modern species may possess biological immortality.. B) consulting noted scientific authorities. the scientific process is when you conduct and experiment re check your results over and over again then have those results posted in a scientific journal for others to check before having. [T/F] When added to a unit of measure, the prefixes "kilo", "mega", "giga" and "nano" mean one thousand, one million, one billion, and one trillion (respectively), [T/F]* If the Sun (radius R=700,000 km) is scaled down to a basketball, (R=25 cm) , then Earth (R= 7000 km) is roughly like a golf ball (R=2.5 cm). Marcus Munafo is one of them . If drops of water are subdivided to the ultimately smallest drops possible, what is the smallest particle of water that retains the chemical and physical properties of water? How many electrons are there in a potassium atom? To make your hypothesis considered scientific it must have Which is the exception? tentative. It does not explain "why this, and not that", and thus it gives us no knowledge, and is useless as an explanation. Basic research is carried out to develop a particular product. testable and measurable results. A. gas D. The amount of nitrogen in each sample, As a policy maker on the cybersecurity team for a bank, which communication is Lars going to be responsible for?Question 3 options:press releases abou Scientific results must be verified by further experiment. age of the universe currently) were compressed to 1 year, then on the same scale the Earth (whose age is about 4.6 Billion years) formed about ______ months after the Universe was born. The scientific method is a process for gathering data and processing information.
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