Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 194 · 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 guess, do not measure? (a) poor testing (b) good testing
2. 2.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
3. 3.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) it looks busy (d) the first is wrong
4. 4.🧪 A paper bridge was tested three times. It held 440 g, 330 g and 280 g. What is the mean (average) load it held, in grams?
5. 5.🧪 What is a prototype? (a) an early test model (b) the final product (c) a broken part (d) a sales poster
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 330 g. Which design was the strongest? (a) design C (b) design B (c) design A
7. 7.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
8. 8.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
9. 9.True or false: to repeat each test is poor testing. (a) True (b) False
10. 10.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) two (d) all of them
11. 11.True or false: to hide a failed test is good testing. (a) False (b) True
12. 12.True or false: to use the same load is good testing. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) record every result (d) test it only once
14. 14.🔢 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
15. 15.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
16. 16.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
17. 17.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
18. 18.🧪 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 weakest? (a) design C (b) design A (c) design B
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the weakest? (a) design C (b) design A (c) design B
20. 20.🧪 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
21. 21.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
22. 22.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
23. 23.🧪 A paper bridge was tested three times. It held 250 g, 150 g and 50 g. What is the mean (average) load it held, in grams?
24. 24.🔍 Which is the odd one out? (a) use the same load (b) change lots at once (c) measure the same way (d) record every result
25. 25.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
26. 26.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) change lots at once (d) change only one thing
27. 27.True or false: to use a new load each time is poor testing. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) repeat each test (d) record every result
29. 29.True or false: to hide a failed test is poor testing. (a) False (b) True
30. 30.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
31. 31.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) sketch three ideas (b) load it with coins
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design B (b) design A (c) design C
33. 33.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) test it only once (d) guess, do not measure
34. 34.🧪 A paper bridge was tested three times. It held 210 g, 50 g and 190 g. What is the mean (average) load it held, in grams?
35. 35.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 290 g and design C held 390 g. Which design was the strongest? (a) design B (b) design C (c) design A
37. 37.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) repeat each test (d) change lots at once
38. 38.🧪 A paper bridge was tested three times. It held 270 g, 230 g and 310 g. What is the mean (average) load it held, in grams?
39. 39.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 180 g and design C held 230 g. Which design was the weakest? (a) design B (b) design C (c) design A

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