Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 898 · 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 100 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design A (b) design C (c) design B
2. 2.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
3. 3.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
4. 4.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) skip writing results (d) change lots at once
5. 5.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) load it with coins (c) read the challenge rules (d) choose and draw one
6. 6.🧪 A paper bridge was tested three times. It held 330 g, 220 g and 170 g. What is the mean (average) load it held, in grams?
7. 7.🔍 Which is the odd one out? (a) repeat each test (b) hide a failed test (c) use the same load (d) measure the same way
8. 8.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) load it with coins (b) strengthen the weak part
9. 9.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 370 g and design C held 270 g. Which design was the weakest? (a) design A (b) design C (c) design B
11. 11.🧪 In a fair test, how many things do you change at a time? (a) two (b) one (c) none (d) all of them
12. 12.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
13. 13.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
14. 14.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) load it with coins (c) build it with straws (d) strengthen the weak part
15. 15.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) measure the same way (d) skip writing results
16. 16.🧪 A paper bridge was tested three times. It held 200 g, 110 g and 290 g. What is the mean (average) load it held, in grams?
17. 17.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 140 g. Which design was the weakest? (a) design C (b) design B (c) design A
19. 19.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
20. 20.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) test it only once (d) hide a failed test
21. 21.🧪 A paper bridge was tested three times. It held 400 g, 310 g and 280 g. What is the mean (average) load it held, in grams?
22. 22.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to sell them at once (d) to avoid testing
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.True or false: to use the same load is poor testing. (a) True (b) False
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 380 g, design B held 330 g and design C held 280 g. Which design was the strongest? (a) design B (b) design C (c) design A
26. 26.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
27. 27.True or false: to skip writing results is good testing. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) test it only once (d) change only one thing
29. 29.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) strengthen the weak part (b) read the challenge rules
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 290 g. Which design was the weakest? (a) design A (b) design B (c) design C
31. 31.True or false: to repeat each test is poor testing. (a) False (b) True
32. 32.True or false: to measure the same way is good testing. (a) False (b) True
33. 33.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
34. 34.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) measure the same way (d) guess, do not measure
35. 35.True or false: to guess, do not measure is poor testing. (a) False (b) True
36. 36.True or false: to use the same load is good testing. (a) True (b) False
37. 37.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
38. 38.True or false: to test it only once is good testing. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) skip writing results (b) repeat each test (c) measure the same way (d) record every result
40. 40.True or false: to guess, do not measure is good testing. (a) False (b) True

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