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Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 306 · 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 guess, do not measure is poor testing. (a) False (b) True
  2. 2.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
  3. 3.🔍 Which is the odd one out? (a) measure the same way (b) test it only once (c) record every result (d) repeat each test
  4. 4.True or false: to record every result is poor testing. (a) True (b) False
  5. 5.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
  6. 6.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules
  7. 7.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
  8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 370 g. Which design was the weakest? (a) design A (b) design C (c) design B
  9. 9.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) a broken part (d) the final product
  10. 10.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
  11. 11.🧪 A paper bridge was tested three times. It held 160 g, 130 g and 190 g. What is the mean (average) load it held, in grams?
  12. 12.True or false: to skip writing results is poor testing. (a) True (b) False
  13. 13.🧪 A paper bridge was tested three times. It held 440 g, 310 g and 300 g. What is the mean (average) load it held, in grams?
  14. 14.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
  15. 15.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) strengthen the weak part (c) sketch three ideas (d) read the challenge rules
  16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design B (b) design C (c) design A
  17. 17.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) load it with coins (b) build it with straws
  18. 18.True or false: to measure the same way is poor testing. (a) True (b) False
  19. 19.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
  20. 20.True or false: to change only one thing is good testing. (a) True (b) False
  21. 21.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
  22. 22.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
  23. 23.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
  24. 24.True or false: to use the same load is good testing. (a) True (b) False
  25. 25.True or false: to use the same load is poor testing. (a) True (b) False
  26. 26.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
  27. 27.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
  28. 28.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) change lots at once (d) use the same load
  29. 29.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) build it with straws (c) strengthen the weak part (d) sketch three ideas
  30. 30.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) record every result (d) measure the same way
  31. 31.🧪 A paper bridge was tested three times. It held 170 g, 70 g and 210 g. What is the mean (average) load it held, in grams?
  32. 32.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) to get reliable results (d) the first is wrong
  33. 33.🔍 Which is the odd one out? (a) measure the same way (b) test it only once (c) skip writing results (d) change lots at once
  34. 34.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
  35. 35.True or false: to test it only once is good testing. (a) True (b) False
  36. 36.True or false: to change lots at once is good testing. (a) False (b) True
  37. 37.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
  38. 38.True or false: to test it only once is poor testing. (a) False (b) True
  39. 39.True or false: to use a new load each time is poor testing. (a) True (b) False
  40. 40.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing

Answer key

  1. True
  2. poor testing
  3. test it only once
  4. False
  5. 70
  6. read the challenge rules
  7. good testing
  8. design A
  9. an early test model
  10. 180
  11. 160
  12. True
  13. 350
  14. good testing
  15. read the challenge rules
  16. design A
  17. build it with straws
  18. False
  19. good testing
  20. True
  21. 180
  22. 70
  23. good testing
  24. True
  25. False
  26. 30
  27. 90
  28. change lots at once
  29. strengthen the weak part
  30. skip writing results
  31. 150
  32. to get reliable results
  33. measure the same way
  34. poor testing
  35. False
  36. False
  37. 10
  38. True
  39. True
  40. poor testing

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