Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 490 · 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 “build it with straws”? (a) read the challenge rules (b) choose and draw one (c) load it with coins (d) sketch three ideas
2. 2.True or false: to record every result is good testing. (a) False (b) True
3. 3.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
4. 4.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
5. 5.🔍 Which is the odd one out? (a) skip writing results (b) hide a failed test (c) use a new load each time (d) measure the same way
6. 6.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
7. 7.🧪 A paper bridge was tested three times. It held 290 g, 140 g and 200 g. What is the mean (average) load it held, in grams?
8. 8.🧪 A paper bridge was tested three times. It held 270 g, 210 g and 300 g. What is the mean (average) load it held, in grams?
9. 9.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
10. 10.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) choose and draw one (c) strengthen the weak part (d) sketch three ideas
11. 11.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) one (d) two
12. 12.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) change only one thing (d) repeat each test
13. 13.True or false: to test it only once is good testing. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) change only one thing (d) hide a failed test
15. 15.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
16. 16.🧪 A paper bridge was tested three times. It held 200 g, 90 g and 250 g. What is the mean (average) load it held, in grams?
17. 17.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
18. 18.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to avoid testing (d) to sell them at once
19. 19.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) test it only once (d) repeat each test
20. 20.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
21. 21.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
22. 22.True or false: to hide a failed test is good testing. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) record every result (b) guess, do not measure (c) repeat each test (d) use the same load
24. 24.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) the final product (d) an early test model
25. 25.🧪 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?
26. 26.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
27. 27.🔢 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
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 240 g and design C held 190 g. Which design was the weakest? (a) design A (b) design B (c) design C
29. 29.🧪 A paper bridge was tested three times. It held 300 g, 270 g and 270 g. What is the mean (average) load it held, in grams?
30. 30.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
31. 31.True or false: to use a new load each time is poor testing. (a) True (b) False
32. 32.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
33. 33.🔍 Which is the odd one out? (a) use a new load each time (b) repeat each test (c) test it only once (d) hide a failed test
34. 34.🔢 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
35. 35.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
36. 36.True or false: to repeat each test is good testing. (a) False (b) True
37. 37.🧪 A paper bridge was tested three times. It held 250 g, 120 g and 170 g. What is the mean (average) load it held, in grams?
38. 38.True or false: to record every result is poor testing. (a) True (b) False
39. 39.True or false: to guess, do not measure is poor testing. (a) False (b) True
40. 40.True or false: to use the same load is poor testing. (a) True (b) False

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