Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 375 · 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.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
2. 2.🧪 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
3. 3.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 110 g. Which design was the strongest? (a) design C (b) design A (c) design B
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 350 g and design C held 300 g. Which design was the strongest? (a) design A (b) design B (c) design C
6. 6.True or false: to record every result is poor testing. (a) False (b) True
7. 7.True or false: to change only one thing is good testing. (a) False (b) True
8. 8.True or false: to skip writing results is poor testing. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) test it only once (d) use the same load
10. 10.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
11. 11.🧪 A paper bridge was tested three times. It held 210 g, 90 g and 210 g. What is the mean (average) load it held, in grams?
12. 12.🧪 A paper bridge was tested three times. It held 330 g, 270 g and 300 g. What is the mean (average) load it held, in grams?
13. 13.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
14. 14.🔢 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
15. 15.True or false: to measure the same way is poor testing. (a) True (b) False
16. 16.🧪 A paper bridge was tested three times. It held 260 g, 130 g and 270 g. What is the mean (average) load it held, in grams?
17. 17.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) sketch three ideas (c) read the challenge rules (d) build it with straws
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 370 g and design C held 270 g. Which design was the strongest? (a) design C (b) design A (c) design B
19. 19.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
20. 20.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) load it with coins (c) build it with straws (d) read the challenge rules
21. 21.True or false: to hide a failed test is good testing. (a) False (b) True
22. 22.True or false: to use a new load each time is poor testing. (a) False (b) True
23. 23.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
24. 24.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
25. 25.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
26. 26.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
27. 27.🔍 Which is the odd one out? (a) change lots at once (b) use the same load (c) change only one thing (d) repeat each test
28. 28.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) load it with coins (c) sketch three ideas (d) choose and draw one
29. 29.True or false: to repeat each test is good testing. (a) False (b) True
30. 30.🧪 A paper bridge was tested three times. It held 230 g, 190 g and 270 g. What is the mean (average) load it held, in grams?
31. 31.🧪 A paper bridge was tested three times. It held 330 g, 250 g and 320 g. What is the mean (average) load it held, in grams?
32. 32.🧪 A paper bridge was tested three times. It held 300 g, 180 g and 180 g. What is the mean (average) load it held, in grams?
33. 33.🧪 A paper bridge was tested three times. It held 380 g, 280 g and 270 g. What is the mean (average) load it held, in grams?
34. 34.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “build it with straws”? (a) sketch three ideas (b) build it with straws
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 370 g. Which design was the weakest? (a) design A (b) design C (c) design B
36. 36.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
37. 37.True or false: to record every result is good testing. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) measure the same way (d) skip writing results
39. 39.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
40. 40.🧪 A paper bridge was tested three times. It held 250 g, 60 g and 140 g. What is the mean (average) load it held, in grams?

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