Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 702 · 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 record every result? (a) poor testing (b) good testing
2. 2.True or false: to use the same load is good testing. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) test it only once (d) record every result
4. 4.🔍 Which is the odd one out? (a) use a new load each time (b) change only one thing (c) skip writing results (d) test it only once
5. 5.True or false: to change lots at once is good testing. (a) True (b) False
6. 6.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
7. 7.🧪 A paper bridge was tested three times. It held 280 g, 270 g and 260 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
9. 9.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) to get reliable results (d) it looks busy
10. 10.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
11. 11.🔍 Which is the odd one out? (a) change only one thing (b) use a new load each time (c) measure the same way (d) record every result
12. 12.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) change lots at once (d) repeat each test
13. 13.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 360 g. Which design was the strongest? (a) design C (b) design A (c) design B
15. 15.🧪 A paper bridge was tested three times. It held 380 g, 230 g and 260 g. What is the mean (average) load it held, in grams?
16. 16.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
17. 17.True or false: to use a new load each time is good testing. (a) False (b) True
18. 18.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
19. 19.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 160 g and design C held 210 g. Which design was the weakest? (a) design C (b) design B (c) design A
21. 21.True or false: to measure the same way is good testing. (a) False (b) True
22. 22.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
23. 23.🧪 A paper bridge was tested three times. It held 320 g, 280 g and 330 g. What is the mean (average) load it held, in grams?
24. 24.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
25. 25.True or false: to record every result is poor testing. (a) False (b) True
26. 26.True or false: to guess, do not measure is good testing. (a) True (b) False
27. 27.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) build it with straws (c) choose and draw one (d) strengthen the weak part
28. 28.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) use a new load each time (d) skip writing results
29. 29.🧪 A paper bridge was tested three times. It held 350 g, 230 g and 350 g. What is the mean (average) load it held, in grams?
30. 30.True or false: to use the same load is poor testing. (a) True (b) False
31. 31.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
32. 32.🔢 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
33. 33.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
34. 34.True or false: to repeat each test is good testing. (a) False (b) True
35. 35.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
36. 36.🧪 A paper bridge was tested three times. It held 260 g, 140 g and 200 g. What is the mean (average) load it held, in grams?
37. 37.🧪 A paper bridge was tested three times. It held 240 g, 80 g and 190 g. What is the mean (average) load it held, in grams?
38. 38.🔍 Which is the odd one out? (a) repeat each test (b) hide a failed test (c) record every result (d) measure the same way
39. 39.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) guess, do not measure (d) use the same load
40. 40.True or false: to change only one thing is good testing. (a) True (b) False

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