Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 506 · 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 test it only once? (a) poor testing (b) good testing
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 210 g and design C held 160 g. Which design was the strongest? (a) design A (b) design B (c) design C
3. 3.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 320 g. Which design was the weakest? (a) design C (b) design A (c) design B
5. 5.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 270 g. Which design was the weakest? (a) design B (b) design C (c) design A
7. 7.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
8. 8.🔢 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
9. 9.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
10. 10.True or false: to change only one thing is good testing. (a) True (b) False
11. 11.True or false: to repeat each test is poor testing. (a) True (b) False
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 390 g. Which design was the strongest? (a) design A (b) design C (c) design B
13. 13.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
14. 14.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
15. 15.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
16. 16.🔍 Which is the odd one out? (a) skip writing results (b) use the same load (c) hide a failed test (d) test it only once
17. 17.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
18. 18.🧪 A paper bridge was tested three times. It held 290 g, 180 g and 100 g. What is the mean (average) load it held, in grams?
19. 19.🧪 A paper bridge was tested three times. It held 150 g, 140 g and 160 g. What is the mean (average) load it held, in grams?
20. 20.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
21. 21.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
22. 22.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
23. 23.True or false: to use a new load each time is good testing. (a) True (b) False
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 400 g and design C held 300 g. Which design was the strongest? (a) design B (b) design A (c) design C
25. 25.🧪 A paper bridge was tested three times. It held 210 g, 70 g and 230 g. What is the mean (average) load it held, in grams?
26. 26.🧪 A paper bridge was tested three times. It held 350 g, 260 g and 320 g. What is the mean (average) load it held, in grams?
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 330 g. Which design was the strongest? (a) design A (b) design C (c) design B
28. 28.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to decorate a room (c) to avoid testing (d) to sell them at once
29. 29.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
30. 30.True or false: to hide a failed test is poor testing. (a) False (b) True
31. 31.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
32. 32.🔢 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
33. 33.🧪 A paper bridge was tested three times. It held 290 g, 130 g and 150 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to measure the same way is good testing. (a) True (b) False
35. 35.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) read the challenge rules (c) load it with coins (d) choose and draw one
36. 36.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) measure the same way (d) use a new load each time
37. 37.🔢 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
38. 38.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) load it with coins (c) build it with straws (d) read the challenge rules
39. 39.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
40. 40.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?

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