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Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 854 · 40 questions
TalentJR

Engineer's tip (Test fairly, record honestly): Prototype = an early model made to test an idea. Fair test: change one thing, keep the rest the same, measure and record every result. Mean of three tests = (first + second + third) ÷ 3.

NameDateTime takenScore ___ / 40
  1. 1.True or false: to measure the same way is poor testing. (a) True (b) False
  2. 2.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
  3. 3.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) change lots at once (d) skip writing results
  4. 4.True or false: to use the same load is poor testing. (a) True (b) False
  5. 5.True or false: to test it only once is good testing. (a) False (b) True
  6. 6.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
  7. 7.True or false: to hide a failed test is good testing. (a) False (b) True
  8. 8.True or false: to guess, do not measure is poor testing. (a) True (b) False
  9. 9.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
  10. 10.True or false: to change only one thing is poor testing. (a) True (b) False
  11. 11.🧪 A paper bridge was tested three times. It held 270 g, 150 g and 240 g. What is the mean (average) load it held, in grams?
  12. 12.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
  13. 13.🔍 Which is the odd one out? (a) measure the same way (b) skip writing results (c) test it only once (d) use a new load each time
  14. 14.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) build it with straws (b) strengthen the weak part
  15. 15.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
  16. 16.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
  17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 230 g. Which design was the strongest? (a) design A (b) design B (c) design C
  18. 18.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
  19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 170 g. Which design was the weakest? (a) design C (b) design B (c) design A
  20. 20.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?
  21. 21.True or false: to record every result is good testing. (a) True (b) False
  22. 22.True or false: to use a new load each time is poor testing. (a) False (b) True
  23. 23.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) a broken part (d) the final product
  24. 24.🧪 In a fair test, how many things do you change at a time? (a) one (b) two (c) none (d) all of them
  25. 25.True or false: to measure the same way is good testing. (a) True (b) False
  26. 26.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) strengthen the weak part (c) sketch three ideas (d) load it with coins
  27. 27.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) sketch three ideas
  28. 28.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) test it only once (d) record every result
  29. 29.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) record every result (d) change only one thing
  30. 30.🔍 Which is the odd one out? (a) test it only once (b) skip writing results (c) change lots at once (d) use the same load
  31. 31.🧪 A paper bridge was tested three times. It held 250 g, 90 g and 110 g. What is the mean (average) load it held, in grams?
  32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 210 g and design C held 160 g. Which design was the strongest? (a) design B (b) design A (c) design C
  33. 33.True or false: to change lots at once is poor testing. (a) True (b) False
  34. 34.True or false: to skip writing results is poor testing. (a) False (b) True
  35. 35.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
  36. 36.True or false: to guess, do not measure is good testing. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) record every result (b) hide a failed test (c) use the same load (d) change only one thing
  38. 38.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) strengthen the weak part (b) read the challenge rules
  39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 140 g. Which design was the weakest? (a) design B (b) design C (c) design A
  40. 40.True or false: to record every result is poor testing. (a) False (b) True

Answer key

  1. False
  2. poor testing
  3. change only one thing
  4. False
  5. False
  6. good testing
  7. False
  8. True
  9. poor testing
  10. False
  11. 220
  12. good testing
  13. measure the same way
  14. build it with straws
  15. good testing
  16. poor testing
  17. design A
  18. 140
  19. design C
  20. 180
  21. True
  22. True
  23. an early test model
  24. one
  25. True
  26. load it with coins
  27. build it with straws
  28. test it only once
  29. guess, do not measure
  30. use the same load
  31. 150
  32. design A
  33. True
  34. True
  35. good testing
  36. False
  37. hide a failed test
  38. read the challenge rules
  39. design C
  40. False

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