Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 823 · 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.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 360 g, design B held 310 g and design C held 260 g. Which design was the strongest? (a) design A (b) design B (c) design C
3. 3.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 180 g. Which design was the weakest? (a) design C (b) design A (c) design B
5. 5.True or false: to use a new load each time is good testing. (a) False (b) True
6. 6.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to sell them at once (d) to test ideas cheaply
7. 7.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
8. 8.True or false: to measure the same way is poor testing. (a) False (b) True
9. 9.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) choose and draw one (c) build it with straws (d) strengthen the weak part
10. 10.True or false: to guess, do not measure is poor testing. (a) True (b) False
11. 11.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) strengthen the weak part (b) build it with straws
12. 12.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) the final product (d) an early test model
13. 13.🧪 A paper bridge was tested three times. It held 400 g, 260 g and 390 g. What is the mean (average) load it held, in grams?
14. 14.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) load it with coins (c) strengthen the weak part (d) choose and draw one
15. 15.🔍 Which is the odd one out? (a) use the same load (b) repeat each test (c) record every result (d) change lots at once
16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 100 g and design C held 200 g. Which design was the weakest? (a) design B (b) design A (c) design C
17. 17.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) two (d) one
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 300 g and design C held 200 g. Which design was the strongest? (a) design C (b) design A (c) design B
19. 19.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) repeat each test (d) measure the same way
20. 20.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
21. 21.True or false: to change lots at once is good testing. (a) True (b) False
22. 22.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 470 g. How many more grams did it hold?
23. 23.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
24. 24.True or false: to repeat each test is good testing. (a) True (b) False
25. 25.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) choose and draw one (d) strengthen the weak part
26. 26.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
27. 27.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) sketch three ideas (b) load it with coins
28. 28.🔍 Which is the odd one out? (a) skip writing results (b) guess, do not measure (c) hide a failed test (d) change only one thing
29. 29.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) sketch three ideas (b) build it with straws
30. 30.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) build it with straws (b) choose and draw one
31. 31.🧪 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 weakest? (a) design B (b) design C (c) design A
32. 32.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 110 g. Which design was the weakest? (a) design B (b) design A (c) design C
34. 34.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
35. 35.🔍 Which is the odd one out? (a) use a new load each time (b) change lots at once (c) guess, do not measure (d) record every result
36. 36.True or false: to use a new load each time is poor testing. (a) False (b) True
37. 37.True or false: to test it only once is poor testing. (a) False (b) True
38. 38.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
39. 39.🧪 A paper bridge was tested three times. It held 270 g, 270 g and 270 g. What is the mean (average) load it held, in grams?
40. 40.🔍 Which is the odd one out? (a) use the same load (b) guess, do not measure (c) measure the same way (d) repeat each test

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