Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 684 · 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.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) test it only once (d) change only one thing
3. 3.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) sketch three ideas (c) choose and draw one (d) strengthen the weak part
4. 4.True or false: to change lots at once is poor testing. (a) True (b) False
5. 5.True or false: to hide a failed test is poor testing. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) use the same load (d) change lots at once
7. 7.True or false: to guess, do not measure is good testing. (a) False (b) True
8. 8.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) the final product (d) an early test model
9. 9.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
10. 10.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) load it with coins (b) choose and draw one
11. 11.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to avoid testing (d) to decorate a room
12. 12.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
13. 13.🧪 A paper bridge was tested three times. It held 240 g, 160 g and 80 g. What is the mean (average) load it held, in grams?
14. 14.True or false: to skip writing results is good testing. (a) True (b) False
15. 15.True or false: to repeat each test is poor testing. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) measure the same way (b) test it only once (c) guess, do not measure (d) use a new load each time
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 270 g. Which design was the strongest? (a) design C (b) design B (c) design A
18. 18.🧪 A paper bridge was tested three times. It held 350 g, 240 g and 400 g. What is the mean (average) load it held, in grams?
19. 19.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) record every result (d) skip writing results
20. 20.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) strengthen the weak part (b) read the challenge rules
21. 21.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) load it with coins (b) strengthen the weak part
22. 22.True or false: to test it only once is good testing. (a) True (b) False
23. 23.True or false: to use a new load each time is good testing. (a) False (b) True
24. 24.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
25. 25.🧪 A paper bridge was tested three times. It held 350 g, 340 g and 330 g. What is the mean (average) load it held, in grams?
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 230 g. Which design was the weakest? (a) design A (b) design B (c) design C
27. 27.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) build it with straws (b) strengthen the weak part
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 340 g and design C held 290 g. Which design was the strongest? (a) design B (b) design A (c) design C
29. 29.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) strengthen the weak part (c) load it with coins (d) build it with straws
30. 30.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
31. 31.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) guess, do not measure (d) hide a failed test
32. 32.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) sketch three ideas (c) read the challenge rules (d) load it with coins
33. 33.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
34. 34.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
35. 35.🧪 A paper bridge was tested three times. It held 380 g, 210 g and 280 g. What is the mean (average) load it held, in grams?
36. 36.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
37. 37.🧪 A paper bridge was tested three times. It held 280 g, 110 g and 210 g. What is the mean (average) load it held, in grams?
38. 38.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
39. 39.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
40. 40.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules

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