Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 405 · 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.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 260 g. Which design was the strongest? (a) design B (b) design C (c) design A
2. 2.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) choose and draw one (b) load it with coins
3. 3.🔍 Which is the odd one out? (a) guess, do not measure (b) test it only once (c) change lots at once (d) use the same load
4. 4.🔍 Which is the odd one out? (a) use a new load each time (b) hide a failed test (c) guess, do not measure (d) repeat each test
5. 5.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) choose and draw one (c) sketch three ideas (d) build it with straws
6. 6.True or false: to measure the same way is poor testing. (a) False (b) True
7. 7.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
8. 8.True or false: to test it only once is poor testing. (a) False (b) True
9. 9.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) build it with straws (c) load it with coins (d) read the challenge rules
10. 10.🧪 A paper bridge was tested three times. It held 340 g, 160 g and 280 g. What is the mean (average) load it held, in grams?
11. 11.True or false: to skip writing results is good testing. (a) True (b) False
12. 12.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
13. 13.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
14. 14.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
15. 15.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) change lots at once (d) change only one thing
16. 16.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) use a new load each time (d) change only one thing
17. 17.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 440 g. How many more grams did it hold?
18. 18.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
19. 19.True or false: to change lots at once is good testing. (a) False (b) True
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the strongest? (a) design A (b) design B (c) design C
21. 21.True or false: to record every result is good testing. (a) False (b) True
22. 22.🧪 Why repeat a test three times? (a) to get reliable results (b) to use more paper (c) the first is wrong (d) it looks busy
23. 23.🔢 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
24. 24.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
25. 25.🧪 A paper bridge was tested three times. It held 260 g, 220 g and 210 g. What is the mean (average) load it held, in grams?
26. 26.🔍 Which is the odd one out? (a) record every result (b) guess, do not measure (c) test it only once (d) skip writing results
27. 27.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
28. 28.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
29. 29.True or false: to use a new load each time is good testing. (a) True (b) False
30. 30.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
31. 31.True or false: to test it only once is good testing. (a) True (b) False
32. 32.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) build it with straws (c) load it with coins (d) read the challenge rules
33. 33.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) build it with straws (c) sketch three ideas (d) strengthen the weak part
34. 34.True or false: to guess, do not measure is poor testing. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) record every result (d) repeat each test
36. 36.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) read the challenge rules (b) build it with straws
37. 37.True or false: to use the same load is good testing. (a) False (b) True
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 100 g. Which design was the strongest? (a) design A (b) design B (c) design C
39. 39.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas
40. 40.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) choose and draw one (c) read the challenge rules (d) build it with straws

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