Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 541 · 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.True or false: to use a new load each time is poor testing. (a) True (b) False
2. 2.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 400 g and design C held 350 g. Which design was the weakest? (a) design C (b) design B (c) design A
4. 4.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
5. 5.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) read the challenge rules (b) strengthen the weak part
6. 6.🔍 Which is the odd one out? (a) use the same load (b) test it only once (c) repeat each test (d) measure the same way
7. 7.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) build it with straws (c) load it with coins (d) read the challenge rules
8. 8.🧪 A paper bridge was tested three times. It held 270 g, 250 g and 260 g. What is the mean (average) load it held, in grams?
9. 9.🧪 A paper bridge was tested three times. It held 290 g, 160 g and 240 g. What is the mean (average) load it held, in grams?
10. 10.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) choose and draw one (b) sketch three ideas
11. 11.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) none (d) two
12. 12.🔍 Which is the odd one out? (a) change lots at once (b) change only one thing (c) use a new load each time (d) skip writing results
13. 13.True or false: to record every result is poor testing. (a) True (b) False
14. 14.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
15. 15.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) sketch three ideas (d) choose and draw one
16. 16.True or false: to skip writing results is good testing. (a) True (b) False
17. 17.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) load it with coins (b) sketch three ideas
18. 18.🔍 Which is the odd one out? (a) hide a failed test (b) skip writing results (c) measure the same way (d) change lots at once
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 140 g. Which design was the weakest? (a) design A (b) design B (c) design C
20. 20.🧪 A paper bridge was tested three times. It held 180 g, 100 g and 260 g. What is the mean (average) load it held, in grams?
21. 21.🧪 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 strongest? (a) design C (b) design B (c) design A
22. 22.🧪 A paper bridge was tested three times. It held 290 g, 230 g and 320 g. What is the mean (average) load it held, in grams?
23. 23.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
24. 24.True or false: to change only one thing is poor testing. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) guess, do not measure (d) use the same load
26. 26.🧪 A paper bridge was tested three times. It held 280 g, 190 g and 370 g. What is the mean (average) load it held, in grams?
27. 27.🧪 A paper bridge was tested three times. It held 320 g, 250 g and 240 g. What is the mean (average) load it held, in grams?
28. 28.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
29. 29.🧪 A paper bridge was tested three times. It held 390 g, 240 g and 330 g. What is the mean (average) load it held, in grams?
30. 30.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) measure the same way (d) change only one thing
31. 31.True or false: to test it only once is good testing. (a) False (b) True
32. 32.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) build it with straws (c) choose and draw one (d) read the challenge rules
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 210 g and design C held 160 g. Which design was the strongest? (a) design A (b) design C (c) design B
34. 34.True or false: to record every result is good testing. (a) True (b) False
35. 35.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
36. 36.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) load it with coins (b) sketch three ideas
37. 37.🔢 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
38. 38.True or false: to skip writing results is poor testing. (a) False (b) True
39. 39.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) build it with straws (b) read the challenge rules
40. 40.True or false: to repeat each test is poor testing. (a) False (b) True

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