Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 330 · 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) skip writing results (b) hide a failed test (c) change lots at once (d) repeat each test
2. 2.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
3. 3.🧪 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 strongest? (a) design C (b) design A (c) design B
4. 4.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) load it with coins (c) sketch three ideas (d) strengthen the weak part
5. 5.True or false: to hide a failed test is poor testing. (a) True (b) False
6. 6.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
7. 7.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to test ideas cheaply (d) to avoid testing
8. 8.True or false: to skip writing results is good testing. (a) False (b) True
9. 9.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
10. 10.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
11. 11.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
12. 12.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
13. 13.🔍 Which is the odd one out? (a) hide a failed test (b) guess, do not measure (c) change only one thing (d) test it only once
14. 14.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
15. 15.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) the first is wrong (d) to use more paper
16. 16.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
17. 17.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
18. 18.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
19. 19.True or false: to repeat each test is good testing. (a) False (b) True
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the weakest? (a) design A (b) design B (c) design C
21. 21.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) use the same load (d) use a new load each time
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 290 g. Which design was the strongest? (a) design A (b) design B (c) design C
23. 23.True or false: to hide a failed test is good testing. (a) False (b) True
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design B (b) design A (c) design C
25. 25.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) read the challenge rules (b) choose and draw one
26. 26.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) all of them (d) two
27. 27.🧪 A paper bridge was tested three times. It held 250 g, 110 g and 270 g. What is the mean (average) load it held, in grams?
28. 28.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
29. 29.True or false: to record every result is poor testing. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) guess, do not measure (b) change only one thing (c) repeat each test (d) record every result
31. 31.🧪 A paper bridge was tested three times. It held 290 g, 140 g and 230 g. What is the mean (average) load it held, in grams?
32. 32.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) load it with coins (c) choose and draw one (d) read the challenge rules
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 220 g. Which design was the weakest? (a) design A (b) design B (c) design C
34. 34.True or false: to measure the same way is good testing. (a) True (b) False
35. 35.🧪 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 weakest? (a) design C (b) design B (c) design A
36. 36.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
37. 37.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 140 g and design C held 190 g. Which design was the strongest? (a) design C (b) design A (c) design B
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 200 g and design C held 250 g. Which design was the weakest? (a) design A (b) design C (c) design B
40. 40.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) load it with coins

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