Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 463 · 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 repeat each test? (a) poor testing (b) good testing
2. 2.True or false: to skip writing results is poor testing. (a) False (b) True
3. 3.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
4. 4.True or false: to repeat each test is good testing. (a) True (b) False
5. 5.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
6. 6.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) test it only once (d) measure the same way
7. 7.True or false: to hide a failed test is poor testing. (a) False (b) True
8. 8.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) two (d) all of them
9. 9.True or false: to use a new load each time is poor testing. (a) False (b) True
10. 10.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) build it with straws (b) read the challenge rules
11. 11.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
12. 12.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
13. 13.🧪 A paper bridge was tested three times. It held 270 g, 230 g and 310 g. What is the mean (average) load it held, in grams?
14. 14.True or false: to test it only once is poor testing. (a) False (b) True
15. 15.True or false: to change lots at once is poor testing. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) measure the same way (d) repeat each test
17. 17.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) change lots at once (d) change only one thing
18. 18.🧪 A paper bridge was tested three times. It held 290 g, 240 g and 340 g. What is the mean (average) load it held, in grams?
19. 19.True or false: to skip writing results is good testing. (a) True (b) False
20. 20.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
21. 21.True or false: to measure the same way is good testing. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) test it only once (d) guess, do not measure
23. 23.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) guess, do not measure (d) change only one thing
24. 24.🧪 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 strongest? (a) design B (b) design A (c) design C
25. 25.🔍 Which is the odd one out? (a) use a new load each time (b) change lots at once (c) hide a failed test (d) record every result
26. 26.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) read the challenge rules (b) build it with straws
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 110 g and design C held 160 g. Which design was the weakest? (a) design A (b) design C (c) design B
28. 28.True or false: to change only one thing is good testing. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) measure the same way (d) use the same load
30. 30.True or false: to use a new load each time is good testing. (a) False (b) True
31. 31.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) the final product (d) a broken part
32. 32.🧪 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 B (c) design C
33. 33.🧪 A paper bridge was tested three times. It held 330 g, 200 g and 220 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to hide a failed test is good testing. (a) False (b) True
35. 35.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
36. 36.🧪 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
37. 37.🧪 A paper bridge was tested three times. It held 300 g, 150 g and 240 g. What is the mean (average) load it held, in grams?
38. 38.🧪 A paper bridge was tested three times. It held 310 g, 270 g and 320 g. What is the mean (average) load it held, in grams?
39. 39.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) build it with straws (c) read the challenge rules (d) strengthen the weak part
40. 40.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) build it with straws (c) load it with coins (d) strengthen the weak part

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