Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 776 · 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.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 400 g and design C held 300 g. Which design was the weakest? (a) design A (b) design B (c) design C
2. 2.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
3. 3.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
4. 4.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) to get reliable results (d) it looks busy
5. 5.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
6. 6.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
7. 7.🔍 Which is the odd one out? (a) measure the same way (b) test it only once (c) change only one thing (d) record every result
8. 8.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) build it with straws (b) load it with coins
9. 9.True or false: to change only one thing is good testing. (a) False (b) True
10. 10.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
11. 11.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) test it only once (d) guess, do not measure
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 150 g and design C held 100 g. Which design was the strongest? (a) design A (b) design B (c) design C
13. 13.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design B (b) design A (c) design C
15. 15.True or false: to repeat each test is good testing. (a) True (b) False
16. 16.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) the final product (d) an early test model
17. 17.True or false: to change lots at once is good testing. (a) False (b) True
18. 18.True or false: to skip writing results is good testing. (a) True (b) False
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 280 g. Which design was the weakest? (a) design A (b) design C (c) design B
20. 20.True or false: to use a new load each time is good testing. (a) True (b) False
21. 21.True or false: to change only one thing is poor testing. (a) False (b) True
22. 22.🔢 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
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 150 g and design C held 250 g. Which design was the strongest? (a) design C (b) design A (c) design B
24. 24.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 260 g. Which design was the weakest? (a) design C (b) design A (c) design B
26. 26.True or false: to hide a failed test is good testing. (a) True (b) False
27. 27.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
28. 28.True or false: to test it only once is poor testing. (a) False (b) True
29. 29.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
30. 30.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
31. 31.🧪 A paper bridge was tested three times. It held 340 g, 240 g and 140 g. What is the mean (average) load it held, in grams?
32. 32.🧪 A paper bridge was tested three times. It held 230 g, 210 g and 220 g. What is the mean (average) load it held, in grams?
33. 33.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
34. 34.🔍 Which is the odd one out? (a) change only one thing (b) change lots at once (c) use the same load (d) measure the same way
35. 35.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 340 g. Which design was the strongest? (a) design A (b) design B (c) design C
37. 37.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
38. 38.🧪 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 weakest? (a) design C (b) design A (c) design B
39. 39.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
40. 40.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing

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