Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 210 · 40 questions

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.

1. 1.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
2. 2.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
3. 3.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
4. 4.True or false: to guess, do not measure is poor testing. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) skip writing results (b) repeat each test (c) guess, do not measure (d) hide a failed test
6. 6.🧪 A paper bridge was tested three times. It held 230 g, 90 g and 250 g. What is the mean (average) load it held, in grams?
7. 7.True or false: to use the same load is good testing. (a) True (b) False
8. 8.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) read the challenge rules (c) strengthen the weak part (d) load it with coins
9. 9.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
10. 10.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
11. 11.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
12. 12.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
13. 13.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
14. 14.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
15. 15.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?
16. 16.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 380 g and design C held 280 g. Which design was the strongest? (a) design C (b) design B (c) design A
18. 18.True or false: to test it only once is poor testing. (a) False (b) True
19. 19.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
20. 20.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) use a new load each time (d) repeat each test
21. 21.True or false: to use a new load each time is good testing. (a) False (b) True
22. 22.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) two (d) one
23. 23.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) measure the same way (d) guess, do not measure
24. 24.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
25. 25.🧪 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 C (b) design A (c) design B
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 290 g and design C held 240 g. Which design was the weakest? (a) design A (b) design B (c) design C
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 400 g and design C held 350 g. Which design was the weakest? (a) design B (b) design C (c) design A
28. 28.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) measure the same way (d) use the same load
29. 29.True or false: to use a new load each time is poor testing. (a) False (b) True
30. 30.True or false: to skip writing results is poor testing. (a) False (b) True
31. 31.🧪 A paper bridge was tested three times. It held 290 g, 250 g and 210 g. What is the mean (average) load it held, in grams?
32. 32.🧪 A paper bridge was tested three times. It held 360 g, 310 g and 350 g. What is the mean (average) load it held, in grams?
33. 33.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) change only one thing (d) use the same load
34. 34.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
35. 35.True or false: to guess, do not measure is good testing. (a) True (b) False
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 330 g. Which design was the weakest? (a) design A (b) design B (c) design C
37. 37.True or false: to hide a failed test is good testing. (a) True (b) False
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 240 g and design C held 190 g. Which design was the weakest? (a) design C (b) design B (c) design A
39. 39.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
40. 40.True or false: to use the same load is poor testing. (a) False (b) True

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