Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 322 · 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 test it only once is poor testing. (a) False (b) True
2. 2.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
3. 3.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) load it with coins (b) choose and draw one
4. 4.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) measure the same way (d) change lots at once
5. 5.True or false: to hide a failed test is poor testing. (a) False (b) True
6. 6.True or false: to hide a failed test is good testing. (a) False (b) True
7. 7.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
8. 8.🔍 Which is the odd one out? (a) skip writing results (b) hide a failed test (c) use a new load each time (d) use the same load
9. 9.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) record every result (d) measure the same way
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 180 g and design C held 280 g. Which design was the strongest? (a) design A (b) design B (c) design C
11. 11.True or false: to change only one thing is poor testing. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) hide a failed test (b) use a new load each time (c) test it only once (d) repeat each test
13. 13.🔢 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
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design A (b) design B (c) design C
15. 15.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
16. 16.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to use more paper (d) to get reliable results
17. 17.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
18. 18.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) sketch three ideas (c) build it with straws (d) read the challenge rules
19. 19.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) hide a failed test (d) record every result
20. 20.True or false: to use the same load is good testing. (a) True (b) False
21. 21.🧪 In a fair test, how many things do you change at a time? (a) one (b) two (c) none (d) all of them
22. 22.🔍 Which is the odd one out? (a) use a new load each time (b) guess, do not measure (c) change lots at once (d) measure the same way
23. 23.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
24. 24.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) sketch three ideas (c) read the challenge rules (d) strengthen the weak part
25. 25.🧪 A paper bridge was tested three times. It held 370 g, 260 g and 420 g. What is the mean (average) load it held, in grams?
26. 26.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) read the challenge rules (c) choose and draw one (d) strengthen the weak part
27. 27.🧪 A paper bridge was tested three times. It held 280 g, 160 g and 100 g. What is the mean (average) load it held, in grams?
28. 28.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to decorate a room (c) to sell them at once (d) to avoid testing
29. 29.True or false: to use a new load each time is good testing. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) repeat each test (d) skip writing results
31. 31.True or false: to test it only once is good testing. (a) True (b) False
32. 32.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
33. 33.True or false: to skip writing results is poor testing. (a) False (b) True
34. 34.🧪 A paper bridge was tested three times. It held 230 g, 180 g and 250 g. What is the mean (average) load it held, in grams?
35. 35.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
36. 36.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
37. 37.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
38. 38.🧪 A paper bridge was tested three times. It held 310 g, 270 g and 320 g. What is the mean (average) load it held, in grams?
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 320 g and design C held 270 g. Which design was the strongest? (a) design A (b) design C (c) design B
40. 40.🧪 A paper bridge was tested three times. It held 320 g, 310 g and 330 g. What is the mean (average) load it held, in grams?

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