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DO NOT WRITE ON THIS PAPER. USE YOUR OWN. First Six Week Test Review Vocabulary: Use the RED Physics books to define the following words (if you are doing this at home, use the internet) 1. 2. 3. 4. 5. 6. 7. average acceleration average velocity Displacement Distance reference frame scalar Quantity Vector quantity To be ready for the test, be able to answer questions similar to the following Scientific method, the Metric system and Significant figures 1. Perform each of the following metric conversions a. 3.67 g = ____________ kg b. 80000 mm = ______________km c. 1.2x103 m = ________________cm d. 2.76 km/hr = ________________m/s 2. Identify the number of significant figures in each of the following numbers a. 300000000000 L b. 3.9000000000 kg c. 0.00000250 m d. 1.0x1012 kg 3. Perform the following calculations. Round your answers to the proper number of digits based on the rules for significant figures. (assume all numbers are measurements) a. 13.8 + 6.900 - 12 = _____________ b. 0.098 x 7.26 / 34.9 = ________________ c. (2.3 x -4.76) - (24 / 6.0) = __________________ d. (2 - 3.00 + 4.76) / (8.9 +10) = __________________ 4. For each of the following, if it is in scientific notation, expand it out, if it is in standard form, write it in scientific notation a. 100000000000000000000 kg b. 0.0000000786 m c. 1.67x103 d. 6.29x10-6 Motion and Kinematics 1. What is the difference between a scalar quantity and a vector quantity? 2. give three examples of a scalar quantity 3. Give three examples of a vector quantity 4. What are the standard units of measure for distance? 5. What are the standard units of measure for displacement? 6. What are the standard units of measure for speed? 7. What are the standard units of measure for velocity? 8. What are the standard units of measure for acceleration? 9. What are the standard units of measure for time? 10. Circle each of the following situations that are possible a. having positive acceleration and positive velocity at the same time. b. having negative acceleration and positive velocity at the same time. c. having positive acceleration and negative velocity at the same time. d. having constant acceleration and positive velocity at the same time. e. having positive acceleration and constant velocity at the same time. f. having positive acceleration and positive displacement at the same time. 11. For each of the items you circled in question 10, give a real world example of that happening 12. How can you tell if an object is accelerating on a d/t graph? 13. What does the slope of a v/t graph represent? 14. What do you have to calculate to find the displacement from a v/t graph? 15. Draw a d/t graph with constant positive velocity but negative displacement 16. Draw a d/t graph with constant negative velocity and negative displacement 17. Draw a v/t graph with constant positive velocity 18. Draw a v/t graph with constant positive acceleration but negative velocity 19. Draw a d/t graph with positive acceleration and negative velocity 20. Draw a d/t graph with positive acceleration and positive velocity 21. Draw a d/t graph with negative acceleration and positive velocity 22. Draw a d/t graph with negative acceleration and negative velocity 23. List the four kinematic equations and identify which one CANNOT be used when an object is accelerating. 24. What do the words "starts from rest" mean when solving problems? 25. If a ball is thrown straight up with a velocity of 2.3 m/s, what is its velocity at the very top of the throw? 26. If the ball in question 25 has an acceleration of -10.0 m/s2, how long does it take to reach the top of the throw? 27. How high above its starting point is the ball from question 25 when it reaches the top of the throw? 28. Trevor Tripoli is running at 2.76 m/s when he snags his foot on a tree root an falls to the ground. If he hits the ground with the same velocity he was running at and slides to a stop in 0.76 seconds, what is his acceleration? 29. Draw a detailed graph of the following and then answer the question that follows. A car starts from rest and accelerates with a constant positive acceleration of 2 m/s2 for 5 seconds. At t= 5s, the car travels at a constant speed for 10 s. After the 10 seconds, the car moves with constant negative acceleration of -4 m/s2 for 10 s. What is the car's final velocity and how far is it from its starting point?
