Monday, June 7, 2021

Mechanics Baseline Test Answer Key


  • There are differences between the paper and digital versions of some AP Exams, and those variations differ by course. View a summary of all AP Exam formats. Learn more about testing. AP Daily and AP Classroom Short, searchable AP Daily videos can be...
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  • Digital Practice and Testing Information Updated April 8 Digital Practice Now Available Starting April 8, students can try out the test-day experience by answering example questions in the digital testing application. See the Digital Practice page...
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  • A four-function, scientific, or graphing calculator is allowed on the exam. However, students will need to bring their own calculator because the digital testing application does not include one. Students will see them at the beginning of each section, and can access them at any time during the exam. Please note that the exam timer starts when the directions appear.
    Link: https://study.com/academy/lesson/adb-pull-data-extraction-from-android-devices-explanation-process.html
  • While students should read the directions, they should be aware that the timer will be running while they do so. Teachers and students can view the full text of the exam and section directions in advance of the exam. More information about taking digital exams is available in the Digital Testing Guide. Teachers and coordinators will access the dashboard from their personalized AP login page after signing in through AP Central or through myap.
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  • So both at A level and in Year 7 and in fact at the start of every school year we should never just assume that topics that have been previously taught and assessed are totally secure. Saying that, we know that many pupils joining us in Year 7 are brilliant little mathematicians. Often they have excellent fluency in arithmetic and times tables and well developed reasoning and problem solving skills. But we won't know that just from looking at their SATs score. A good SATs score might only tell us that back in May the child had a good level of fluency in written methods of arithmetic. A short, focused baseline test with incoming Year 7s might help us work out if that's still the case and give us an idea of a sensible starting point for each pupil. When my previous school had incoming Year 7s sit baseline tests in September, we were surprised by the variation in results. Although we see a general correlation as expected, the middle chunk of the data expected scores between and was all over the place.
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  • If your school sets in Year 7 based solely on SATs results you need to be aware of this potential variation. Schools are able to access data for their incoming Year 7 pupils that shows their SATs marks by question. Getting a single question right or wrong on a particular topic at a particular time doesn't really tell us very much about a child's understanding of that topic.
    Link: https://assignmentexpert.com/homework-answers/physics/other/question-117407
  • We have no idea how much a child really understands something until we've spent time questioning them, working with them, assessing them, drawing out misconceptions. Clearly we need to get to know our students and we can't make any assumptions based on data in a spreadsheet. Saying that, let's have a quick look at a bit of national data just because it's interesting. The following two questions were the worst answered questions in last year's maths SATs.
    Link: https://s3.amazonaws.com/mirror.facultyinfo.unt.edu/crt0144/schteach/Twist%20Syllabus%20Math1350%20Fall%202018%20%20Written%20Assignments-1.pdf
  • Paper 3 Content first taught in Year 4. Paper 2 Content first taught in Year 6. And here's the worst answered question on the arithmetic paper: Paper 1 I think this is a pretty grim question. I'm surprised it's only one mark. I'm also surprised how many pupils got it right given the unnecessarily fiddly numbers. It would be interesting to see how many Year 7s can remember how to do this in September. And it would be interesting to see how many Year 11s can get this right. I think it would be good maths department CPD to discuss all these questions in detail and think about what pupils would have found difficult. The breakdown of topics in the Year 6 SATs was similar to previous years.
    Link: https://mometrix.com/academy/hesi-a2-math-practice-test/
  • A large chunk of the questions were calculations and fractions, decimals and percentages. This is unsurprising. There weren't many questions on shape and statistics. I find that Year 7 teachers are sometimes unsure what algebra their pupils have seen before. Here are two algebra questions from this year's Paper 3. Here's the primary curriculum content relating to algebra: It's mainly 'missing number' stuff. So when we teach collecting like terms etc in Year 7, it's their first time manipulating algebra in this way. I've been trying to find time to write this post for about 18 months so I'm glad I finally finished it! I hope it's a helpful starting point. The main point I'm making is that SATs data is of limited use - teacher judgement is way more important - but I strongly recommend looking through all three maths SATs papers in a department meeting in September to help teachers get to know the primary curriculum better.
    Link: https://deq.louisiana.gov/assets/docs/NetDMR/Main_Presentation_CDX-NetDMR_10-2017.pdf
  • If you don't have time to look through all three papers then perhaps just have a look at the Third Space Learning blog which has an analysis of this year's maths SATs papers including some examples of questions to discuss. By the way, if you're teaching Year 7 in September I am!
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  • John Kershaw, an ASE test prep expert. You are replacing brake pads. You've already removed the wheels. What is the appropriate next step for most vehicles? Remove the old brake pads b. Unbolt the caliper d. None of the above Incorrect answer. Please choose another answer. A low-mileage vehicle is running hot. Assuming the radiator has enough coolant, what is the most likely problem? The block has a partial restriction. The water pump has broken down. The thermostat has stopped working.
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  • All of the above e. Either b or c Incorrect answer. A car is pulling to one side as it drives. The most common causes of this problem are listed below. Which one should you check first? Uneven tire wear c. Low or uneven tire pressure d. A sticking brake caliper Incorrect answer. When you replace an oil drain plug, you should retighten it according to the old maxim "snug, but not too hard. In what order should you replace spark plugs? All at once b. An entire row at once c. One at a time, starting at the bottom of the row d. One at a time, starting at the top of the row Incorrect answer. You are replacing a fuel tank. You've drained and stored all the gas in the vehicle. What is the next step? Take the straps off the tank and drop it. Disconnect the fuel lines. Drop the rear suspension. A vehicle comes into your shop with a transmission problem. Check the fluid level b.
    Link: http://kobiljak.msu.edu/CAI/Spirometry/AnswerKey.html
  • Check for leaks c. Look at the filter d. Disassemble the transmission and check the gears. Incorrect answer. Problems with spark plug wires are almost always caused by cracks in the insulation. True Incorrect answer. You are completing a radiator flush. You have drained the old coolant and added the flush solution. Turn the vehicle on and let it run until it reaches its normal operating temperature. Turn the heater on and let it run at the highest setting for 10 minutes. Drain the solution and add fresh radiator coolant. An engine is misfiring. Which of the following is NOT a likely cause? The ignition timing may be set wrong. The cooling system may be malfunctioning. The fuel filter may be clogged. The vehicle may have a vacuum leak. What is the last step in a brake job? Replace the caliper assembly b. Replace and tighten the nuts c.
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  • Press the brake pedal to make sure the brake pressure is satisfactory. An air filter should not be replaced until it shows visible signs of accumulated particles. Black smoke is mixed into the exhaust of a vehicle you have been tasked to repair. Which of the following is a likely cause? Leaking fuel injectors b. A closed carburetor choke c. A dirty air filter d. Any of the above Incorrect answer. Which of the following is NOT a possible cause of an engine hesitating? The air filter needs to be replaced. The ignition wires need to be replaced. The fuel filter is clogged. The engine has a vacuum leak. A vehicle is knocking when it goes over bumps or cracks in the road. Which of the following is a likely cause of the problem? Low power steering fluid b. Shocks or struts that need to be replaced. A broken tie rod d. A worn power steering belt Incorrect answer. It is recommended that a timing belt be replaced at the manufacturer's suggested interval if a visual inspection reveals only minor fraying.
    Link: https://gradesaver.com/the-hot-zone/study-guide/quiz1/
  • A brake pedal has to go down too far to stop. Which of the following is not likely to be a cause of this problem? Low brake fluid.
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  • A SSESSMENT Modern learning theory and experience with new forms of assessment suggest several characteristics assessments should have if they are to serve effectively as learning activities. Of particular interest is the need to provide opportunities for students to construct their own mathematical knowledge and the need to determine where students are in their acquisition of mathematical understanding. In both, the assessment must elicit important mathematics. Constructing Mathematical Knowledge Learning is a process of continually restructuring one's prior knowledge, not just adding to it. Good education provides opportunities for students to connect what is being learned to their prior knowledge.
    Link: https://tbp.berkeley.edu/exams/5572/download/
  • One way to provide opportunities for the construction of mathematical knowledge is through assessment tasks that resemble learning tasks 12 in that they promote strategies such as analyzing data, drawing contrasts, and making connections. It is not enough, however, to expand mathematics assessment to take in a broader spectrum of an individual student's competence. In real-world settings, knowledge is sometimes constructed in group settings rather than in individual exploration. Learning mathematics is frequently optimized in group settings, and assessment of that learning must reflect the value of group interaction.
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  • They are looking for ways to assess what goes on in groups, trying to find out not only what mathematics has been learned, but also how the students have been working together. A critical issue is how to use assessments of group work in the grades they give to individual students. A recent study of a teacher who was using groups in class but not assessing the work done in groups found that her students apparently did not see such work as important. Group work, if it is to become an integral and valued part of mathematics instruction, must be assessed in some fashion. A challenge to developers is to construct some high-quality assessment tasks that can be conducted in groups and subsequently scored fairly. Part of the construction of knowledge depends on the availability of appropriate tools, whether in instruction or assessment. Recent experimental National Assessment of Educational Progress NAEP tasks in science use physical materials for a miniexperiment students are asked to perform by themselves.
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  • Since the use of manipulatives is a critical part of today's mathematical instruction, such tools must be part of today's assessment. Reflecting Development of Competence As students progress through their schooling, it is obvious that the content of their assessments must change to reflect their growing mathematical sophistication. When students encounter new topics in mathematics, they often cannot see how the unfamiliar ideas are connected to anything they have seen before. They resort to primitive strategies of memorization, grasping at isolated and superficial aspects of the topic.
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  • Usable knowledge. Experts have knowledge that is connected to the conditions in which it can be applied effectively. They know not only what to do but when to do it. Attention-free and efficient performance. Experts are not simply faster than novices, they are able to coordinate their automated skills with thinking processes that demand their attention. Self-regulatory skills. As people develop competence, they also develop skills for monitoring and directing their preformance.
    Link: https://coursehero.com/file/86974718/362finalexamsolpdf/
  • A full portrayal of competence in mathematics demands much more than measuring how well students can perform automated skills although that is part of the picture. Assessment should also examine whether students have managed to connect the concepts they have learned, how well they can recognize underlying principles and patterns amid superficial differences, their sense of when to use processes and strategies, their grasp and command of their own understanding, and whether Page 73 Share Cite Suggested Citation:"4 Assessing to Support Mathematics Learning.
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  • So let's dive into the article! What is fluid? It is a substance that deforms continuously for a small amount of shear force also whereas solids cannot deform with a small amount of shear force and thereby they can't come under fluids. What is the Density? It is defined as the ratio of the mass of the substance to the volume of the substance. What is a Specific weight or Weight Density? It is defined as the ratio of the volume of the substance to the weight of the substance. It is also the reciprocal of density. What is Specific Gravity? It is defined as the ratio of the density of any fluid to the density of the reference fluid. What is Specific Volume? It is the reciprocal of Density which is defined as the ratio of Volume of the body to its unit mass. What is Bulk Modulus?
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  • It is defined as the ratio of direct stress acting on a body to the volumetric strain. It is denoted by K. What is an Ideal Fluid? It is a fluid having all ideal properties like no viscosity, no surface tension, incompressible, irrotational, etc. Note: Bulk modulus for ideal fluid is infinity. What is Viscosity? It is the property of fluid by virtue of which it offers resistance for the movement of one layer over the other and it is because of Cohesion I.
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  • If the attraction between the two layers increases, resistance increases, and thereby the viscosity also increases. What is Newtonian Fluid? The fluid which follows the Newtonian equation is called the Newtonian fluid and which does not follow is called a non-Newtonian fluid. What is Surface Tension? It is the property of the liquid surface film to exert tension. What is Pressure? It is defined as the ratio of force acting on a body to its unit area.
    Link: https://study.com/academy/lesson/how-to-simplify-expressions-with-exponents.html
  • What is Capillarity? The rise or fall of fluid in a capillary tube is due to the molecular forces of attraction among the molecules and the glass wall is called capillarity action. What are the different types of non-newtonian fluids? The different types of non-newtonian fluids are Pseudoplastic For example, Milk, blood, paper pulp solution, liquid cement, etc. Bingham plastic For example, Drilling mud, sewage sludge, toothpaste, etc.
    Link: https://ssconlineexam.com/1forums/11435/yxw,-uts,-qpo,-mlk,-
  • Thixotropic Fluids For these fluids, viscosity increases with an increase in time hence they will be called shear thickening fluids. Rheophatic fluids For these Fluids, the viscosity decreases with the lapse of time. What is Steady flow? If all the properties do not change with respect to time then the flow is said to be a steady flow. What is Unsteady Flow? If even a single parameter changes with respect to time then the flow becomes an unsteady flow.
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  • What is Rotational or Irrotational flow? If the fluid particles rotate about their mass center while moving forward the flow is said to be a rotational flow otherwise it is irrotational flow. What is the Path Line? It is a line traced by a single particle over its entire journey is called a path line. Observing only one particle direction throughout the flow. What is the Streak Line? The instantaneous picture of the position of all the particles at any instant of time is called a streak line. For example, Rocket Propulsion,cigarette smoke etc. What is the Continuity Equation? It depends upon conservation of mass and it is defined as the mass flow rate at entering of the cross-section is equal to the mass flow rate at the exit.
    Link: https://jobs.studyfry.com/wp-content/uploads/2019/10/answer-key-ubter-group-d.pdf
  • If you create your own, you need to begin with a clear understanding of the knowledge and skills that you want your students to acquire. The questions should probe a student's comprehension or application of a concept rather than factual recall. Concept test questions often describe a problem, event, or situation. Examples of appropriate types of questions include: asking students to predict the outcome of an event e. How would changing one variable affect others? How would you apply it? The following question stems are used frequently in concept test questions: Which of the following best describes… Which is the best method for… If the value of X was changed to… Which of the following is the best explanation for… Which of the following is another example of… What is the major problem with… What would happen if….
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