Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 604 · 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.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) test it only once (d) guess, do not measure
2. 2.True or false: to test it only once is good testing. (a) False (b) True
3. 3.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
4. 4.True or false: to hide a failed test is good testing. (a) True (b) False
5. 5.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) none (d) two
6. 6.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) read the challenge rules (c) strengthen the weak part (d) build it with straws
7. 7.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
8. 8.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
9. 9.🧪 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
10. 10.True or false: to guess, do not measure is good testing. (a) True (b) False
11. 11.True or false: to change only one thing is good testing. (a) False (b) True
12. 12.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
13. 13.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
14. 14.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
15. 15.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) use the same load (d) measure the same way
16. 16.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) to get reliable results (d) it looks busy
17. 17.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) build it with straws (b) read the challenge rules
18. 18.🔍 Which is the odd one out? (a) test it only once (b) measure the same way (c) use the same load (d) repeat each test
19. 19.True or false: to hide a failed test is poor testing. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) skip writing results (b) use a new load each time (c) hide a failed test (d) change only one thing
21. 21.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
22. 22.True or false: to change lots at once is poor testing. (a) False (b) True
23. 23.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
24. 24.True or false: to record every result is poor testing. (a) True (b) False
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 140 g and design C held 190 g. Which design was the weakest? (a) design A (b) design C (c) design B
26. 26.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) sketch three ideas (d) choose and draw one
27. 27.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
28. 28.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
29. 29.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 470 g. How many more grams did it hold?
30. 30.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
31. 31.True or false: to use the same load is poor testing. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) measure the same way (d) hide a failed test
33. 33.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) load it with coins (c) sketch three ideas (d) strengthen the weak part
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 250 g. Which design was the weakest? (a) design A (b) design C (c) design B
35. 35.True or false: to use a new load each time is good testing. (a) True (b) False
36. 36.True or false: to test it only once is poor testing. (a) True (b) False
37. 37.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
38. 38.🔍 Which is the odd one out? (a) skip writing results (b) hide a failed test (c) record every result (d) test it only once
39. 39.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the weakest? (a) design A (b) design B (c) design C

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