Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 810 · 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.🔍 Which is the odd one out? (a) measure the same way (b) guess, do not measure (c) change lots at once (d) test it only once
2. 2.True or false: to repeat each test is poor testing. (a) False (b) True
3. 3.🧪 A paper bridge was tested three times. It held 220 g, 180 g and 200 g. What is the mean (average) load it held, in grams?
4. 4.True or false: to skip writing results is good testing. (a) False (b) True
5. 5.True or false: to repeat each test is good testing. (a) False (b) True
6. 6.True or false: to record every result is poor testing. (a) True (b) False
7. 7.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) read the challenge rules (c) choose and draw one (d) sketch three ideas
8. 8.🔢 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) load it with coins (d) read the challenge rules
9. 9.🔢 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
10. 10.🔍 Which is the odd one out? (a) change lots at once (b) test it only once (c) hide a failed test (d) record every result
11. 11.🔍 Which is the odd one out? (a) use the same load (b) hide a failed test (c) record every result (d) repeat each test
12. 12.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) change lots at once (d) use the same load
13. 13.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
14. 14.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
15. 15.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) choose and draw one (b) sketch three ideas
16. 16.True or false: to measure the same way is good testing. (a) True (b) False
17. 17.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
18. 18.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 200 g and design C held 150 g. Which design was the weakest? (a) design B (b) design A (c) design C
20. 20.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
21. 21.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to test ideas cheaply (d) to decorate a room
22. 22.🔍 Which is the odd one out? (a) change lots at once (b) use the same load (c) skip writing results (d) use a new load each time
23. 23.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) sketch three ideas (c) choose and draw one (d) load it with coins
24. 24.True or false: to use a new load each time is good testing. (a) False (b) True
25. 25.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
26. 26.🧪 A paper bridge was tested three times. It held 310 g, 180 g and 290 g. What is the mean (average) load it held, in grams?
27. 27.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) use a new load each time (d) use the same load
28. 28.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
29. 29.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
30. 30.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
31. 31.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
32. 32.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
33. 33.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) one (d) two
34. 34.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
35. 35.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
36. 36.True or false: to test it only once is good testing. (a) True (b) False
37. 37.🧪 A paper bridge was tested three times. It held 280 g, 130 g and 130 g. What is the mean (average) load it held, in grams?
38. 38.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
39. 39.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) change only one thing (d) skip writing results
40. 40.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing

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