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Precision Measuring CPU Objectives Activity 1 1-1. Test your pre-existing knowledge of the course material. 1-2. Discover the development of precision measuring and why it is important to industry. 1-3. Explore various measuring standards used in the past. 1-4. Examine the current standards of linear measurement. 1-5. Explain why ancient standard measurement would be impractical today. Activity 2 2-1. Discover the two main measuring standards in use today. 2-2 Identify the differences between architectural divisions and engineering divisions. 2-3. Demonstrate ability in measuring lines using an engineer’s scale. 2-4. Identify parallax. 2-5. Discuss examples of parallax common in everyday life. Activity 3 3-1. Explore Vernier measurement. 3-2. Demonstrate ability to measure objects using dial calipers. 3-3. Explain what makes dial calipers useful, and how Vernier measurement might be used to measure other quantities. Activity 4 4-1. Demonstrate ability to measure objects using a micrometer. 4-2. Discover minuscule units of measure. 4-3. Compare using the micrometer to using the dial calipers. Activity 5 5-1. Define volume. 5-2. Discover how one measurement can be made from other measurements. 5-3. Consider the uses of measuring volume. Activity 6 6-1. Discover angle measurement. 6-2. Explore sine, cosine, and tangent. 6-3. Demonstrate ability to measure angles using a protractor. 6-4. Discover the Pythagorean theorem. 6-5. Discuss professional uses of trigonometry. Activity 7 7-1. Explore the basics of weight. 7-2. Demonstrate ability to measure weight using a triple beam balance. 7-3. Discover forces. 7-4. Discover mass. 7-5. Explain how you think balance of forces might be used in various careers. Activity 8 8-1. Define caster, camber, and toe. 8-2. Discover specialized measurement. 8-3. Demonstrate ability to measure caster, camber, and toe. 8-4. Consider the importance of specialized instruments. Activity 9 9-1. Define voltage, current, and resistance. 9-2. Discover Ohm’s Law. 9-3. Demonstrate ability to use Ohm’s law to calculate resistance and current. 9-4. Explain why you think voltage, current and resistance should be measured. Activity 10 10-1. Investigate magnetism. 10-2. Demonstrate ability to measure voltage, current, and resistance using a digital multimeter. 10-3. Discuss the uses of magnetism in different industries. Activity 11 through Activity 15 require students to complete challenges to meet numerous high level problem-solving objectives. Activity 15 15-1. Select appropriate vocabulary terms based on the definitions provided. 15-2.Test your comprehension of concepts gained during this course. 15-3.State and explain your opinion of the Precision Measuring CPU. The objectives for the challenges in Activity 11 through Activity 15 of this CPU include: Challenge 1 You will conduct research on a career of your choice in the precision measuring field. Share your findings in a presentation. Challenge 2 You will make a Vernier protractor using two pieces of posterboard. Challenge 3 You will calibrate the caster, camber, and toe on the R/C car using two different calibration tables. Then, test the car’s performance. Challenge 4 You will make a set of shapes that fit neatly in a square area, and solve puzzles with them. Challenge 5 You will make a sextant using a drinking straw, a protractor, a length of twine, some tape, and a metal washer. Then, use it to measure the height of a tall object. |
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