Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 90 · 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.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
2. 2.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) one (d) none
3. 3.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
4. 4.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
5. 5.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
6. 6.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
7. 7.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) test it only once (d) use the same load
8. 8.True or false: to measure the same way is good testing. (a) False (b) True
9. 9.🧪 A paper bridge was tested three times. It held 150 g, 50 g and 250 g. What is the mean (average) load it held, in grams?
10. 10.🧪 A paper bridge was tested three times. It held 380 g, 260 g and 410 g. What is the mean (average) load it held, in grams?
11. 11.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
12. 12.True or false: to test it only once is good testing. (a) True (b) False
13. 13.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
14. 14.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 150 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
16. 16.True or false: to hide a failed test is poor testing. (a) False (b) True
17. 17.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
18. 18.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
19. 19.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
20. 20.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
21. 21.🔍 Which is the odd one out? (a) hide a failed test (b) use a new load each time (c) measure the same way (d) skip writing results
22. 22.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
23. 23.🧪 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 weakest? (a) design B (b) design A (c) design C
24. 24.True or false: to use the same load is good testing. (a) False (b) True
25. 25.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) read the challenge rules (b) load it with coins
26. 26.🔢 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
27. 27.🧪 A paper bridge was tested three times. It held 200 g, 90 g and 220 g. What is the mean (average) load it held, in grams?
28. 28.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
29. 29.🧪 A paper bridge was tested three times. It held 310 g, 210 g and 350 g. What is the mean (average) load it held, in grams?
30. 30.True or false: to skip writing results is good testing. (a) True (b) False
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 380 g. Which design was the weakest? (a) design B (b) design C (c) design A
32. 32.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) use the same load (d) change lots at once
33. 33.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) record every result (d) use the same load
34. 34.True or false: to repeat each test is poor testing. (a) True (b) False
35. 35.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
36. 36.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
37. 37.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
38. 38.True or false: to change lots at once is good testing. (a) False (b) True
39. 39.🧪 A paper bridge was tested three times. It held 330 g, 310 g and 320 g. What is the mean (average) load it held, in grams?
40. 40.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?

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