Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 186 · 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.True or false: to measure the same way is poor testing. (a) False (b) True
2. 2.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) sketch three ideas (c) choose and draw one (d) load it with coins
3. 3.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) all of them (d) one
4. 4.True or false: to skip writing results is good testing. (a) True (b) False
5. 5.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
6. 6.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
7. 7.🧪 A paper bridge was tested three times. It held 220 g, 180 g and 140 g. What is the mean (average) load it held, in grams?
8. 8.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) strengthen the weak part (c) sketch three ideas (d) choose and draw one
9. 9.🧪 A paper bridge was tested three times. It held 450 g, 330 g and 270 g. What is the mean (average) load it held, in grams?
10. 10.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) hide a failed test (d) repeat each test
11. 11.🔍 Which is the odd one out? (a) record every result (b) change lots at once (c) repeat each test (d) change only one thing
12. 12.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) load it with coins (d) read the challenge rules
13. 13.🧪 A paper bridge was tested three times. It held 310 g, 280 g and 310 g. What is the mean (average) load it held, in grams?
14. 14.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to decorate a room (c) to avoid testing (d) to sell them at once
15. 15.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
16. 16.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) skip writing results (d) record every result
17. 17.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 450 g. How many more grams did it hold?
18. 18.True or false: to repeat each test is good testing. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) record every result (d) measure the same way
20. 20.True or false: to change lots at once is poor testing. (a) True (b) False
21. 21.🧪 A paper bridge was tested three times. It held 260 g, 160 g and 180 g. What is the mean (average) load it held, in grams?
22. 22.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) use the same load (d) guess, do not measure
23. 23.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
24. 24.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
25. 25.🧪 A paper bridge was tested three times. It held 220 g, 150 g and 290 g. What is the mean (average) load it held, in grams?
26. 26.🧪 A paper bridge was tested three times. It held 240 g, 110 g and 280 g. What is the mean (average) load it held, in grams?
27. 27.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
28. 28.True or false: to test it only once is good testing. (a) True (b) False
29. 29.True or false: to change only one thing is good testing. (a) True (b) False
30. 30.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) strengthen the weak part (c) choose and draw one (d) sketch three ideas
31. 31.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
32. 32.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
33. 33.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) change only one thing (d) repeat each test
34. 34.True or false: to hide a failed test is good testing. (a) False (b) True
35. 35.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
36. 36.True or false: to record every result is poor testing. (a) True (b) False
37. 37.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) choose and draw one (b) build it with straws
38. 38.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) measure the same way (d) hide a failed test
39. 39.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 430 g. How many more grams did it hold?
40. 40.True or false: to guess, do not measure is poor testing. (a) True (b) False

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