Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 798 · 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.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) build it with straws (c) load it with coins (d) strengthen the weak part
2. 2.True or false: to use a new load each time is good testing. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) change lots at once (d) change only one thing
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 390 g and design C held 340 g. Which design was the strongest? (a) design B (b) design C (c) design A
5. 5.True or false: to hide a failed test is poor testing. (a) False (b) True
6. 6.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
7. 7.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
8. 8.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) all of them (d) two
9. 9.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
10. 10.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) choose and draw one (b) load it with coins
11. 11.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
12. 12.True or false: to measure the same way is poor testing. (a) False (b) True
13. 13.🧪 A paper bridge was tested three times. It held 380 g, 210 g and 250 g. What is the mean (average) load it held, in grams?
14. 14.True or false: to test it only once is poor testing. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) guess, do not measure (d) skip writing results
16. 16.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
17. 17.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) sketch three ideas (c) read the challenge rules (d) strengthen the weak part
18. 18.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
19. 19.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
20. 20.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) read the challenge rules (c) strengthen the weak part (d) choose and draw one
21. 21.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) load it with coins (b) strengthen the weak part
22. 22.🧪 A paper bridge was tested three times. It held 340 g, 190 g and 280 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 use a new load each time is poor testing. (a) False (b) True
25. 25.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
26. 26.🧪 A paper bridge was tested three times. It held 230 g, 160 g and 210 g. What is the mean (average) load it held, in grams?
27. 27.True or false: to use the same load is poor testing. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) record every result (d) use a new load each time
29. 29.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
30. 30.🔍 Which is the odd one out? (a) skip writing results (b) record every result (c) change only one thing (d) measure the same way
31. 31.🔢 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
32. 32.🧪 A paper bridge was tested three times. It held 310 g, 240 g and 320 g. What is the mean (average) load it held, in grams?
33. 33.🧪 A paper bridge was tested three times. It held 310 g, 150 g and 290 g. What is the mean (average) load it held, in grams?
34. 34.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
35. 35.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
36. 36.🧪 A paper bridge was tested three times. It held 350 g, 290 g and 410 g. What is the mean (average) load it held, in grams?
37. 37.🧪 What is a prototype? (a) an early test model (b) a broken part (c) a sales poster (d) the final product
38. 38.🔢 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
39. 39.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) sketch three ideas (d) build it with straws
40. 40.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas

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