Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 838 · 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 repeat each test? (a) good testing (b) poor testing
2. 2.True or false: to hide a failed test is good testing. (a) False (b) True
3. 3.🧪 A paper bridge was tested three times. It held 360 g, 180 g and 300 g. What is the mean (average) load it held, in grams?
4. 4.True or false: to use the same load is poor testing. (a) False (b) True
5. 5.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
6. 6.🧪 A paper bridge was tested three times. It held 330 g, 190 g and 290 g. What is the mean (average) load it held, in grams?
7. 7.True or false: to test it only once is poor testing. (a) False (b) True
8. 8.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) sketch three ideas (b) read the challenge rules
9. 9.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
10. 10.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
11. 11.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
12. 12.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) strengthen the weak part (b) load it with coins
13. 13.🔢 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
14. 14.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) choose and draw one (c) strengthen the weak part (d) sketch three ideas
15. 15.True or false: to use a new load each time is good testing. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) use the same load (d) repeat each test
17. 17.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 490 g. How many more grams did it hold?
18. 18.🔍 Which is the odd one out? (a) use the same load (b) repeat each test (c) change lots at once (d) change only one thing
19. 19.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
20. 20.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) sketch three ideas (c) read the challenge rules (d) strengthen the weak part
21. 21.True or false: to skip writing results is good testing. (a) True (b) False
22. 22.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) build it with straws (b) strengthen the weak part
23. 23.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
24. 24.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
25. 25.🔢 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
26. 26.🔍 Which is the odd one out? (a) repeat each test (b) hide a failed test (c) use the same load (d) measure the same way
27. 27.🔍 Which is the odd one out? (a) guess, do not measure (b) use the same load (c) change lots at once (d) use a new load each time
28. 28.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) read the challenge rules (b) build it with straws
29. 29.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
30. 30.True or false: to skip writing results is poor testing. (a) False (b) True
31. 31.🧪 A paper bridge was tested three times. It held 170 g, 100 g and 210 g. What is the mean (average) load it held, in grams?
32. 32.🧪 A paper bridge was tested three times. It held 290 g, 170 g and 140 g. What is the mean (average) load it held, in grams?
33. 33.True or false: to guess, do not measure is poor testing. (a) False (b) True
34. 34.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) load it with coins (c) strengthen the weak part (d) choose and draw one
35. 35.True or false: to repeat each test is good testing. (a) True (b) False
36. 36.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) choose and draw one (c) strengthen the weak part (d) build it with straws
37. 37.🧪 A paper bridge was tested three times. It held 200 g, 170 g and 200 g. What is the mean (average) load it held, in grams?
38. 38.🔍 Which is the odd one out? (a) change lots at once (b) skip writing results (c) change only one thing (d) test it only once
39. 39.True or false: to measure the same way is good testing. (a) True (b) False
40. 40.🧪 What is a prototype? (a) the final product (b) an early test model (c) a sales poster (d) a broken part

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