Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 839 · 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) an early test model (d) a broken part
2. 2.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) build it with straws
3. 3.🧪 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 A (b) design B (c) design C
4. 4.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) measure the same way (d) repeat each test
5. 5.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
6. 6.🧪 A paper bridge was tested three times. It held 150 g, 150 g and 150 g. What is the mean (average) load it held, in grams?
7. 7.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) sketch three ideas (b) choose and draw one
8. 8.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) read the challenge rules (c) sketch three ideas (d) load it with coins
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 390 g and design C held 290 g. Which design was the strongest? (a) design C (b) design A (c) design B
10. 10.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
11. 11.True or false: to change only one thing is good testing. (a) False (b) True
12. 12.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
13. 13.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) one (d) none
14. 14.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) guess, do not measure (d) use a new load each time
15. 15.True or false: to hide a failed test is poor testing. (a) False (b) True
16. 16.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) load it with coins (c) build it with straws (d) sketch three ideas
17. 17.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) sketch three ideas
18. 18.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
19. 19.🧪 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 A (c) design C
20. 20.True or false: to guess, do not measure is good testing. (a) False (b) True
21. 21.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
22. 22.True or false: to use the same load is good testing. (a) True (b) False
23. 23.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) sketch three ideas (d) load it with coins
24. 24.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) build it with straws (b) strengthen the weak part
25. 25.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) load it with coins (c) choose and draw one (d) build it with straws
26. 26.True or false: to skip writing results is poor testing. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) guess, do not measure (b) change only one thing (c) record every result (d) use the same load
28. 28.True or false: to hide a failed test is good testing. (a) True (b) False
29. 29.True or false: to test it only once is good testing. (a) True (b) False
30. 30.True or false: to repeat each test is poor testing. (a) True (b) False
31. 31.True or false: to use a new load each time is good testing. (a) True (b) False
32. 32.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
33. 33.🧪 A paper bridge was tested three times. It held 360 g, 300 g and 360 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to measure the same way is good testing. (a) True (b) False
35. 35.🔢 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
36. 36.True or false: to use the same load is poor testing. (a) False (b) True
37. 37.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
38. 38.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) change only one thing (d) skip writing results
39. 39.True or false: to record every result is poor testing. (a) True (b) False
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 130 g. Which design was the weakest? (a) design C (b) design B (c) design A

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