Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 549 · 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) True (b) False
2. 2.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) build it with straws (d) choose and draw one
3. 3.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) choose and draw one
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 110 g and design C held 160 g. Which design was the weakest? (a) design C (b) design A (c) design B
5. 5.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) guess, do not measure (d) record every result
6. 6.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
7. 7.🔍 Which is the odd one out? (a) measure the same way (b) hide a failed test (c) record every result (d) change only one thing
8. 8.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
9. 9.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
10. 10.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) record every result (d) test it only once
11. 11.🧪 A paper bridge was tested three times. It held 350 g, 320 g and 320 g. What is the mean (average) load it held, in grams?
12. 12.🧪 Why repeat a test three times? (a) to get reliable results (b) the first is wrong (c) it looks busy (d) to use more paper
13. 13.🧪 A paper bridge was tested three times. It held 190 g, 90 g and 230 g. What is the mean (average) load it held, in grams?
14. 14.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) measure the same way (d) use the same load
15. 15.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) guess, do not measure (d) use the same load
16. 16.🧪 What is a prototype? (a) an early test model (b) a broken part (c) a sales poster (d) the final product
17. 17.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
18. 18.🔍 Which is the odd one out? (a) hide a failed test (b) measure the same way (c) change lots at once (d) skip writing results
19. 19.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) change only one thing (d) change lots at once
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 110 g and design C held 210 g. Which design was the strongest? (a) design C (b) design B (c) design A
21. 21.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) strengthen the weak part (b) build it with straws
22. 22.🧪 A paper bridge was tested three times. It held 260 g, 130 g and 120 g. What is the mean (average) load it held, in grams?
23. 23.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
24. 24.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to decorate a room (d) to avoid testing
25. 25.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
26. 26.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) test it only once (d) guess, do not measure
27. 27.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
28. 28.True or false: to repeat each test is poor testing. (a) True (b) False
29. 29.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
30. 30.🧪 In a fair test, how many things do you change at a time? (a) one (b) two (c) none (d) all of them
31. 31.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
32. 32.True or false: to measure the same way is good testing. (a) False (b) True
33. 33.True or false: to hide a failed test is poor testing. (a) True (b) False
34. 34.🧪 A paper bridge was tested three times. It held 330 g, 190 g and 170 g. What is the mean (average) load it held, in grams?
35. 35.True or false: to test it only once is poor testing. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) measure the same way (d) use a new load each time
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 310 g. Which design was the weakest? (a) design B (b) design C (c) design A
38. 38.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
39. 39.🧪 A paper bridge was tested three times. It held 240 g, 150 g and 60 g. What is the mean (average) load it held, in grams?
40. 40.True or false: to use a new load each time is good testing. (a) False (b) True

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