Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 551 · 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.True or false: to skip writing results is poor testing. (a) False (b) True
2. 2.True or false: to measure the same way is good testing. (a) True (b) False
3. 3.True or false: to change only one thing is poor testing. (a) False (b) True
4. 4.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
5. 5.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
6. 6.🧪 A paper bridge was tested three times. It held 340 g, 200 g and 180 g. What is the mean (average) load it held, in grams?
7. 7.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules
8. 8.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
9. 9.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
10. 10.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) skip writing results (d) measure the same way
11. 11.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
12. 12.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) guess, do not measure (d) hide a failed test
13. 13.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
14. 14.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) use the same load (d) test it only once
15. 15.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) sketch three ideas (c) choose and draw one (d) strengthen the weak part
16. 16.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 140 g and design C held 240 g. Which design was the weakest? (a) design A (b) design C (c) design B
18. 18.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
19. 19.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) load it with coins (c) strengthen the weak part (d) build it with straws
20. 20.🧪 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 C (b) design A (c) design B
21. 21.🧪 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 B (b) design A (c) design C
22. 22.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) strengthen the weak part (c) sketch three ideas (d) choose and draw one
23. 23.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) use a new load each time (d) measure the same way
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 210 g. Which design was the weakest? (a) design B (b) design C (c) design A
25. 25.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
26. 26.🔍 Which is the odd one out? (a) guess, do not measure (b) test it only once (c) record every result (d) change lots at once
27. 27.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
28. 28.🧪 A paper bridge was tested three times. It held 400 g, 250 g and 310 g. What is the mean (average) load it held, in grams?
29. 29.True or false: to test it only once is poor testing. (a) False (b) True
30. 30.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
31. 31.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 180 g and design C held 230 g. Which design was the strongest? (a) design C (b) design B (c) design A
33. 33.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) sketch three ideas (c) choose and draw one (d) load it with coins
34. 34.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
35. 35.True or false: to change only one thing is good testing. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) repeat each test (d) guess, do not measure
37. 37.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) repeat each test (d) change only one thing
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 340 g and design C held 290 g. Which design was the weakest? (a) design C (b) design A (c) design B
39. 39.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) build it with straws (c) strengthen the weak part (d) choose and draw one
40. 40.True or false: to change lots at once is poor testing. (a) False (b) True

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