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Additional items address technology and pure science, validity of theories, experiment limits, gravity and weight, and clear scientific conclusions. 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Each question is worth one point.  \n  1. Which of the following is an area of physics that studies heat and temperature?  \nA) thermodynamics C) quantum mechanics  \nB) mechanics D) optics  \n  2. According to the scientific method, how does a physicist formulate and objectively test hypotheses?  \nA) by defending an opinion C) by experiments  \nB) by interpreting graphs D) by stating conclusions   3. Why do physicists use models?  \nA) to explain the complex features of simple phenomena  \nB) to describe all aspects of a phenomenon  \nC) to explain the basic features of complex phenomena  \nD) to describe all of reality  \n  4. What two dimensions, in addition to mass, are commonly used by physicists to derive additional measurements?  \nA) length and width C) length and time  \nB) area and mass D) velocity and time   5. The symbols for units of length in order from smallest to largest are  \nA) m, cm, mm, and km. C) km, mm, cm, and m.  \nB) mm, m, cm, and km. D) mm, cm, m, and km.  \n  6. The SI base unit used to measure mass is the  \nA) meter. C) gram.  \nB) second. D) liter.  \n  7. If some measurements agree closely with each other but differ widely from the actual value, these measurements are  \nA) neither precise nor accurate.  \nB) accurate but not precise.  \nC) acceptable as a new standard of accuracy.  \nD) precise but not accurate.  \n  8. Poor precision in scientific measurements may arise from  \nA) significant figures.  \nB) human error.  \nC) scientific notation.  \nD) both significant figures and scientific notation.  \n9. Five darts strike near the center of a target. The dart thrower is____ A) accurate. C) both accurate and precise.  \nB) precise. D) neither accurate nor precise.  \nPhysics Unit 1 Test  \n10. Which of the following equations best describes the graph above?  \nA) y = 2x C) y = x2  \nB) y = x D) y = ~~1~~2x   11. The Greek letter sigma, 􏁓 , indicates a(n)  \nA) difference or change. C) direct proportion.  \nB) sum or total. D) inverse proportion   12. What is the symbol for mass?  \nA) m C) M  \nB) m D) 􏁄m   13. Estimate the order of magnitude of the length of a football field.  \nA) 10–1 m C) 104 m  \nB) 102 m D) 106 m   14. Technology can best be defined as  \nA) science that uses computers. C) applied science.  \nB) new inventions. D) the use of lenses and microscopes.   15. What do scientists who do pure science do?  \nA) They look for ways to use scientific knowledge to solve problems.  \nB) They develop new uses for scientific knowledge.  \nC) They do experiments to find out about the world.  \nD) They build faster and more powerful computers.  \n  16. For a scientific theory to be valid, it must allow you to  \nA) perform experiments. C) find a new, more complex explanation.  \nB) obtain new results each time. D) make predictions.  \n  17. Scientific theories can be changed or replaced when  \nA) new technology is invented.  \nB) new discoveries are made.  \nC) scientists decide to work on different problems.  \nD) scientists make models of events or objects.  \nPhysics Unit 1 Test  \n  18. Which question cannot be answered by an experiment?  \nA) Does penicillin kill Salmonella bacteria?  \nB) Is rabies caused by a virus?  \nC) Did a comet impact kill the dinosaurs?  \nD) Can radiation cause cancer?  \n  19. The force with which gravity pulls on a quantity of matter is referred to as  \nA) mass. C) volume.  \nB) length. D) weight.  \n  20. According to the scientific method, how should conclusions be stated?  \nA) so that no one can refute the conclusion  \nB) so that it works with only one set of data  \nC) so that it is completely correct, with no mistakes  \nD) in a form that can be evaluated by others  \n  21. In a game of horseshoes, one horseshoe lands on the post. Four horseshoes land nowhere near the post. The one horseshoe on the post was thrown  \nA) accurately. C) both accurat","cbCaitiHNseUsMBw","https://ap.wps.com/l/cbCaitiHNseUsMBw","pdf",117610,"English","# Physics Unit 1 Test Review\n## Multiple Choice\n## Short Answer\n## Problem\n## Essay","[{\"question\":\"What topics are covered in the multiple-choice questions?\",\"answer\":\"They cover physics areas like thermodynamics and models, scientific method steps, unit systems (SI base units and length order), measurement precision versus accuracy, order of magnitude, and related ideas such as gravity and weight.\"},{\"question\":\"What skills are required in the short answer section?\",\"answer\":\"Students must state the steps of the scientific method, make graphs from given data, and find the slope of a line.\"},{\"question\":\"What do students need to do for the problem and essay sections?\",\"answer\":\"The problem section requires unit conversion and writing numbers in scientific notation. The essay section requires answering two of three questions, with the third as extra credit.\"}]","Physics Unit 1 Test Review - Multiple Choice - Short Answer - Problem - Essay | PDF",1790770829]