Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 999 · 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 skip writing results is poor testing. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) guess, do not measure (b) hide a failed test (c) skip writing results (d) use the same load
3. 3.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
4. 4.True or false: to change only one thing is poor testing. (a) True (b) False
5. 5.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
6. 6.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) sketch three ideas (b) strengthen the weak part
7. 7.🧪 In a fair test, how many things do you change at a time? (a) one (b) two (c) none (d) all of them
8. 8.🔍 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
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 380 g, design B held 330 g and design C held 280 g. Which design was the weakest? (a) design A (b) design B (c) design C
10. 10.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
11. 11.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) test it only once (d) record every result
12. 12.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
13. 13.True or false: to change lots at once is poor testing. (a) False (b) True
14. 14.🧪 A paper bridge was tested three times. It held 190 g, 140 g and 150 g. What is the mean (average) load it held, in grams?
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 260 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
17. 17.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) measure the same way (d) hide a failed test
18. 18.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
19. 19.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
20. 20.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) repeat each test (d) change only one thing
21. 21.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
22. 22.True or false: to test it only once is good testing. (a) True (b) False
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 140 g and design C held 240 g. Which design was the weakest? (a) design B (b) design A (c) design C
24. 24.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
25. 25.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 250 g and design C held 200 g. Which design was the strongest? (a) design A (b) design C (c) design B
27. 27.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) change only one thing (d) hide a failed test
28. 28.🧪 A paper bridge was tested three times. It held 310 g, 160 g and 310 g. What is the mean (average) load it held, in grams?
29. 29.True or false: to skip writing results is good testing. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) record every result (b) change lots at once (c) repeat each test (d) change only one thing
31. 31.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
32. 32.🧪 A paper bridge was tested three times. It held 330 g, 270 g and 390 g. What is the mean (average) load it held, in grams?
33. 33.🧪 A paper bridge was tested three times. It held 200 g, 60 g and 190 g. What is the mean (average) load it held, in grams?
34. 34.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) choose and draw one (b) load it with coins
35. 35.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 120 g. Which design was the strongest? (a) design C (b) design A (c) design B
37. 37.True or false: to measure the same way is good testing. (a) True (b) False
38. 38.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
39. 39.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) test it only once (d) record every result
40. 40.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?

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