← Prototypes and fair tests lesson New set →

Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 653 · 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 change lots at once is good testing. (a) True (b) False
  2. 2.True or false: to use a new load each time is good testing. (a) True (b) False
  3. 3.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) choose and draw one (c) build it with straws (d) load it with coins
  4. 4.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
  5. 5.True or false: to test it only once is good testing. (a) False (b) True
  6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 190 g. Which design was the strongest? (a) design B (b) design C (c) design A
  7. 7.🔍 Which is the odd one out? (a) use the same load (b) guess, do not measure (c) test it only once (d) skip writing results
  8. 8.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) record every result (d) change lots at once
  9. 9.🧪 What is a prototype? (a) the final product (b) a sales poster (c) an early test model (d) a broken part
  10. 10.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) strengthen the weak part (c) load it with coins (d) read the challenge rules
  11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 240 g. Which design was the weakest? (a) design A (b) design B (c) design C
  12. 12.True or false: to hide a failed test is good testing. (a) True (b) False
  13. 13.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
  14. 14.True or false: to test it only once is poor testing. (a) True (b) False
  15. 15.🧪 A paper bridge was tested three times. It held 400 g, 230 g and 300 g. What is the mean (average) load it held, in grams?
  16. 16.True or false: to guess, do not measure is poor testing. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) guess, do not measure (b) change only one thing (c) change lots at once (d) use a new load each time
  18. 18.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
  19. 19.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
  20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 110 g and design C held 210 g. Which design was the weakest? (a) design C (b) design A (c) design B
  21. 21.True or false: to skip writing results is poor 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.True or false: to change only one thing is poor testing. (a) True (b) False
  24. 24.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
  25. 25.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
  26. 26.True or false: to record every result is poor testing. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) test it only once (d) change only one thing
  28. 28.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
  29. 29.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
  30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 370 g. Which design was the strongest? (a) design B (b) design A (c) design C
  31. 31.🔍 Which is the odd one out? (a) test it only once (b) repeat each test (c) skip writing results (d) change lots at once
  32. 32.True or false: to use the same load is good testing. (a) True (b) False
  33. 33.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
  34. 34.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to avoid testing (d) to decorate a room
  35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 230 g and design C held 280 g. Which design was the weakest? (a) design B (b) design C (c) design A
  36. 36.True or false: to record every result is good testing. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) use the same load (d) record every result
  38. 38.True or false: to use the same load is poor testing. (a) False (b) True
  39. 39.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) build it with straws (c) sketch three ideas (d) read the challenge rules
  40. 40.True or false: to repeat each test is poor testing. (a) False (b) True

Answer key

  1. False
  2. False
  3. sketch three ideas
  4. 150
  5. False
  6. design A
  7. use the same load
  8. record every result
  9. an early test model
  10. strengthen the weak part
  11. design C
  12. False
  13. poor testing
  14. True
  15. 310
  16. True
  17. change only one thing
  18. one
  19. good testing
  20. design B
  21. True
  22. True
  23. False
  24. poor testing
  25. good testing
  26. False
  27. test it only once
  28. 190
  29. poor testing
  30. design C
  31. repeat each test
  32. True
  33. 120
  34. to test ideas cheaply
  35. design B
  36. True
  37. skip writing results
  38. False
  39. read the challenge rules
  40. False

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids