Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 909 · 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.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) sketch three ideas (c) choose and draw one (d) strengthen the weak part
2. 2.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) change only one thing (d) guess, do not measure
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 290 g and design C held 240 g. Which design was the weakest? (a) design B (b) design C (c) design A
4. 4.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) repeat each test (d) change lots at once
5. 5.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) it looks busy (d) the first is wrong
6. 6.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) choose and draw one (d) strengthen the weak part
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 340 g. Which design was the weakest? (a) design B (b) design C (c) design A
8. 8.🧪 What is a prototype? (a) the final product (b) a broken part (c) a sales poster (d) an early test model
9. 9.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
10. 10.True or false: to repeat each test is poor testing. (a) False (b) True
11. 11.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) load it with coins (c) build it with straws (d) choose and draw one
12. 12.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) sketch three ideas (b) strengthen the weak part
13. 13.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 440 g. How many more grams did it hold?
14. 14.True or false: to use a new load each time is good testing. (a) False (b) True
15. 15.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
16. 16.🧪 A paper bridge was tested three times. It held 290 g, 130 g and 180 g. What is the mean (average) load it held, in grams?
17. 17.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
18. 18.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
19. 19.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) load it with coins (d) sketch three ideas
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 160 g. Which design was the weakest? (a) design B (b) design A (c) design C
21. 21.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
22. 22.True or false: to repeat each test is good testing. (a) True (b) False
23. 23.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
24. 24.True or false: to change only one thing is poor testing. (a) False (b) True
25. 25.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
26. 26.True or false: to measure the same way is poor testing. (a) True (b) False
27. 27.True or false: to use the same load is good testing. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) test it only once (d) hide a failed test
29. 29.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
30. 30.🧪 A paper bridge was tested three times. It held 290 g, 210 g and 190 g. What is the mean (average) load it held, in grams?
31. 31.🧪 A paper bridge was tested three times. It held 330 g, 320 g and 310 g. What is the mean (average) load it held, in grams?
32. 32.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) strengthen the weak part (b) build it with straws (c) load it with coins (d) read the challenge rules
33. 33.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
34. 34.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
35. 35.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the weakest? (a) design A (b) design B (c) design C
37. 37.🧪 A paper bridge was tested three times. It held 430 g, 330 g and 260 g. What is the mean (average) load it held, in grams?
38. 38.True or false: to record every result is poor testing. (a) False (b) True
39. 39.🔢 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) read the challenge rules
40. 40.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) measure the same way (d) hide a failed test

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