Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 822 · 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.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) the first is wrong (d) to get reliable results
2. 2.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) guess, do not measure (d) change lots at once
3. 3.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
4. 4.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
5. 5.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) repeat each test (d) guess, do not measure
6. 6.True or false: to measure the same way is good testing. (a) True (b) False
7. 7.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
8. 8.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
9. 9.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
10. 10.🧪 A paper bridge was tested three times. It held 340 g, 210 g and 380 g. What is the mean (average) load it held, in grams?
11. 11.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) test it only once (d) record every result
12. 12.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 250 g and design C held 300 g. Which design was the strongest? (a) design B (b) design A (c) design C
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the weakest? (a) design A (b) design C (c) design B
15. 15.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 250 g and design C held 200 g. Which design was the strongest? (a) design B (b) design C (c) design A
17. 17.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
18. 18.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
19. 19.🧪 A paper bridge was tested three times. It held 350 g, 230 g and 350 g. What is the mean (average) load it held, in grams?
20. 20.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
21. 21.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
22. 22.True or false: to change lots at once is poor testing. (a) False (b) True
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 270 g. Which design was the weakest? (a) design C (b) design A (c) design B
24. 24.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
25. 25.True or false: to record every result is poor testing. (a) False (b) True
26. 26.True or false: to repeat each test is poor testing. (a) False (b) True
27. 27.🧪 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 A (b) design C (c) design B
28. 28.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) choose and draw one (b) strengthen the weak part
29. 29.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 480 g. How many more grams did it hold?
30. 30.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) use the same load (d) skip writing results
31. 31.🧪 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 strongest? (a) design A (b) design C (c) design B
32. 32.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
33. 33.True or false: to skip writing results is good testing. (a) False (b) True
34. 34.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) sketch three ideas (c) read the challenge rules (d) strengthen the weak part
35. 35.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 450 g. How many more grams did it hold?
36. 36.True or false: to record every result is good testing. (a) True (b) False
37. 37.True or false: to change only one thing is poor testing. (a) True (b) False
38. 38.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
39. 39.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) use the same load (d) change lots at once
40. 40.True or false: to use a new load each time is poor testing. (a) True (b) False

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