Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 864 · 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 repeat each test is good testing. (a) False (b) True
2. 2.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) strengthen the weak part (c) sketch three ideas (d) build it with straws
3. 3.🔍 Which is the odd one out? (a) repeat each test (b) guess, do not measure (c) change only one thing (d) measure the same way
4. 4.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) build it with straws
5. 5.🔍 Which is the odd one out? (a) change only one thing (b) change lots at once (c) record every result (d) measure the same way
6. 6.True or false: to hide a failed test is good testing. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) use a new load each time (b) change lots at once (c) repeat each test (d) skip writing results
8. 8.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
9. 9.True or false: to test it only once is poor testing. (a) True (b) False
10. 10.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to test ideas cheaply (d) to avoid testing
11. 11.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
12. 12.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
13. 13.True or false: to change only one thing is good testing. (a) True (b) False
14. 14.True or false: to repeat each test is poor testing. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) skip writing results (d) use a new load each time
16. 16.True or false: to use the same load is poor testing. (a) False (b) True
17. 17.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
18. 18.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) one (d) none
19. 19.🧪 A paper bridge was tested three times. It held 260 g, 160 g and 300 g. What is the mean (average) load it held, in grams?
20. 20.True or false: to guess, do not measure is poor testing. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) use a new load each time (d) use the same load
22. 22.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
23. 23.True or false: to hide a failed test is poor testing. (a) False (b) True
24. 24.True or false: to use a new load each time is poor testing. (a) True (b) False
25. 25.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
26. 26.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
27. 27.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
28. 28.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
29. 29.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
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) choose and draw one
31. 31.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
32. 32.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 300 g and design C held 250 g. Which design was the weakest? (a) design B (b) design C (c) design A
34. 34.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
35. 35.True or false: to record every result is good testing. (a) False (b) True
36. 36.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) strengthen the weak part (b) sketch three ideas
37. 37.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
38. 38.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) read the challenge rules (b) strengthen the weak part
39. 39.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
40. 40.True or false: to record every result is poor testing. (a) True (b) False

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