Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 762 · 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.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) hide a failed test (d) use the same load
2. 2.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
3. 3.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) load it with coins (b) sketch three ideas
4. 4.True or false: to repeat each test is good testing. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) measure the same way (d) repeat each test
6. 6.True or false: to measure the same way is poor testing. (a) True (b) False
7. 7.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 490 g. How many more grams did it hold?
8. 8.🧪 A paper bridge was tested three times. It held 180 g, 160 g and 170 g. What is the mean (average) load it held, in grams?
9. 9.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
10. 10.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) use the same load (d) guess, do not measure
11. 11.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) the first is wrong (d) to get reliable results
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 150 g and design C held 250 g. Which design was the strongest? (a) design B (b) design C (c) design A
13. 13.🧪 What is a prototype? (a) an early test model (b) a broken part (c) the final product (d) a sales poster
14. 14.True or false: to hide a failed test is poor testing. (a) True (b) False
15. 15.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) all of them (d) two
16. 16.True or false: to hide a failed test is good testing. (a) True (b) False
17. 17.True or false: to change only one thing is poor testing. (a) False (b) True
18. 18.🧪 A paper bridge was tested three times. It held 270 g, 180 g and 180 g. What is the mean (average) load it held, in grams?
19. 19.True or false: to guess, do not measure is good testing. (a) False (b) True
20. 20.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
21. 21.True or false: to test it only once is good testing. (a) True (b) False
22. 22.🔢 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
23. 23.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
24. 24.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) use a new load each time (d) record every result
25. 25.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
26. 26.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 290 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
28. 28.True or false: to change lots at once is good testing. (a) True (b) False
29. 29.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
30. 30.True or false: to test it only once is poor testing. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) measure the same way (b) change lots at once (c) use the same load (d) repeat each test
32. 32.True or false: to measure the same way is good testing. (a) True (b) False
33. 33.True or false: to change lots at once is poor testing. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) hide a failed test (d) change lots at once
35. 35.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) load it with coins (c) sketch three ideas (d) strengthen the weak part
36. 36.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
37. 37.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 400 g. Which design was the strongest? (a) design B (b) design A (c) design C
39. 39.🔢 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
40. 40.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) choose and draw one (c) load it with coins (d) sketch three ideas

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