Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 100 · 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.🔍 Which is the odd one out? (a) guess, do not measure (b) test it only once (c) change only one thing (d) skip writing results
2. 2.True or false: to record every result is poor testing. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) guess, do not measure (b) change only one thing (c) repeat each test (d) record every result
4. 4.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
5. 5.🧪 In a fair test, how many things do you change at a time? (a) one (b) two (c) all of them (d) none
6. 6.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) read the challenge rules (c) strengthen the weak part (d) sketch three ideas
7. 7.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
8. 8.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
9. 9.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
10. 10.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
11. 11.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
12. 12.🔢 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) choose and draw one
13. 13.🧪 A paper bridge was tested three times. It held 400 g, 290 g and 240 g. What is the mean (average) load it held, in grams?
14. 14.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
15. 15.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to decorate a room (d) to test ideas cheaply
16. 16.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
17. 17.True or false: to use a new load each time is good testing. (a) True (b) False
18. 18.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
19. 19.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) choose and draw one (b) load it with coins
20. 20.🔍 Which is the odd one out? (a) hide a failed test (b) skip writing results (c) use the same load (d) guess, do not measure
21. 21.🧪 A paper bridge was tested three times. It held 230 g, 130 g and 240 g. What is the mean (average) load it held, in grams?
22. 22.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 140 g. Which design was the weakest? (a) design A (b) design B (c) design C
24. 24.🔢 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
25. 25.True or false: to use a new load each time is poor testing. (a) True (b) False
26. 26.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) it looks busy (d) to get reliable results
27. 27.🧪 A paper bridge was tested three times. It held 360 g, 190 g and 320 g. What is the mean (average) load it held, in grams?
28. 28.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
29. 29.True or false: to skip writing results is good testing. (a) True (b) False
30. 30.True or false: to hide a failed test is good testing. (a) True (b) False
31. 31.True or false: to guess, do not measure is poor testing. (a) False (b) True
32. 32.True or false: to test it only once is good testing. (a) False (b) True
33. 33.🧪 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?
34. 34.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) repeat each test (d) measure the same way
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 100 g and design C held 200 g. Which design was the strongest? (a) design C (b) design B (c) design A
36. 36.True or false: to guess, do not measure is good testing. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) record every result (d) change lots at once
38. 38.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
39. 39.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) choose and draw one (c) build it with straws (d) sketch three ideas
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design A (b) design B (c) design C

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