Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 884 · 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, which comes first: “build it with straws” or “sketch three ideas”? (a) build it with straws (b) sketch three ideas
2. 2.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) read the challenge rules (b) choose and draw one
3. 3.True or false: to change lots at once is good testing. (a) False (b) True
4. 4.True or false: to use a new load each time is poor testing. (a) False (b) True
5. 5.True or false: to test it only once is poor testing. (a) False (b) True
6. 6.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) read the challenge rules (c) strengthen the weak part (d) build it with straws
7. 7.🔍 Which is the odd one out? (a) test it only once (b) skip writing results (c) use the same load (d) use a new load each time
8. 8.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
9. 9.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
10. 10.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) repeat each test (d) measure the same way
11. 11.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
12. 12.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) one (d) two
13. 13.True or false: to change only one thing is poor testing. (a) False (b) True
14. 14.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) the first is wrong (d) it looks busy
15. 15.🔍 Which is the odd one out? (a) use a new load each time (b) change only one thing (c) record every result (d) measure the same way
16. 16.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to decorate a room (d) to test ideas cheaply
17. 17.🧪 A paper bridge was tested three times. It held 410 g, 320 g and 320 g. What is the mean (average) load it held, in grams?
18. 18.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
19. 19.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) guess, do not measure (d) record every result
20. 20.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) choose and draw one (c) load it with coins (d) read the challenge rules
21. 21.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
22. 22.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) choose and draw one (c) build it with straws (d) read the challenge rules
23. 23.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
24. 24.🧪 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 strongest? (a) design B (b) design A (c) design C
25. 25.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) choose and draw one (d) build it with straws
26. 26.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
27. 27.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
28. 28.🔢 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
29. 29.True or false: to test it only once is good testing. (a) False (b) True
30. 30.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) build it with straws (c) sketch three ideas (d) load it with coins
31. 31.True or false: to skip writing results is good testing. (a) True (b) False
32. 32.🧪 A paper bridge was tested three times. It held 360 g, 210 g and 270 g. What is the mean (average) load it held, in grams?
33. 33.True or false: to measure the same way is good testing. (a) False (b) True
34. 34.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
35. 35.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) measure the same way (d) repeat each test
36. 36.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) test it only once (d) hide a failed test
37. 37.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) strengthen the weak part (b) read the challenge rules
38. 38.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
39. 39.True or false: to measure the same way is poor testing. (a) False (b) True
40. 40.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 90 g. How many more grams did it hold?

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