Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 24 · 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 guess, do not measure? (a) poor testing (b) good testing
2. 2.🧪 Why repeat a test three times? (a) to get reliable results (b) to use more paper (c) the first is wrong (d) it looks busy
3. 3.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
4. 4.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
5. 5.🧪 A paper bridge was tested three times. It held 280 g, 210 g and 140 g. What is the mean (average) load it held, in grams?
6. 6.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 190 g. Which design was the weakest? (a) design C (b) design B (c) design A
8. 8.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
9. 9.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) use a new load each time (d) change only one thing
10. 10.🔢 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
11. 11.🧪 A paper bridge was tested three times. It held 270 g, 170 g and 130 g. What is the mean (average) load it held, in grams?
12. 12.True or false: to skip writing results is good testing. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) skip writing results (b) guess, do not measure (c) use the same load (d) test it only once
14. 14.🔢 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) strengthen the weak part (d) build it with straws
15. 15.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) build it with straws (c) read the challenge rules (d) strengthen the weak part
16. 16.🧪 A paper bridge was tested three times. It held 170 g, 70 g and 240 g. What is the mean (average) load it held, in grams?
17. 17.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
18. 18.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 180 g and design C held 130 g. Which design was the strongest? (a) design B (b) design A (c) design C
20. 20.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
21. 21.🧪 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 C (b) design A (c) design B
22. 22.🧪 A paper bridge was tested three times. It held 230 g, 110 g and 170 g. What is the mean (average) load it held, in grams?
23. 23.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
24. 24.True or false: to use a new load each time is good testing. (a) True (b) False
25. 25.True or false: to guess, do not measure is poor testing. (a) False (b) True
26. 26.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) strengthen the weak part (b) sketch three ideas
27. 27.🧪 A paper bridge was tested three times. It held 390 g, 270 g and 300 g. What is the mean (average) load it held, in grams?
28. 28.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) record every result (d) hide a failed test
29. 29.🧪 A paper bridge was tested three times. It held 330 g, 330 g and 330 g. What is the mean (average) load it held, in grams?
30. 30.🧪 A paper bridge was tested three times. It held 300 g, 260 g and 280 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to change lots at once is good testing. (a) True (b) False
32. 32.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to sell them at once (d) to test ideas cheaply
33. 33.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 310 g. Which design was the weakest? (a) design B (b) design C (c) design A
35. 35.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) read the challenge rules (c) load it with coins (d) sketch three ideas
36. 36.🔍 Which is the odd one out? (a) record every result (b) change lots at once (c) repeat each test (d) measure the same way
37. 37.🧪 A paper bridge was tested three times. It held 270 g, 230 g and 280 g. What is the mean (average) load it held, in grams?
38. 38.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
39. 39.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) measure the same way (d) use a new load each time
40. 40.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) measure the same way (d) skip writing results

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