Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 844 · 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) good testing (b) poor testing
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 400 g. Which design was the strongest? (a) design A (b) design B (c) design C
3. 3.🔍 Which is the odd one out? (a) guess, do not measure (b) hide a failed test (c) repeat each test (d) change lots at once
4. 4.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) change only one thing (d) measure the same way
5. 5.🧪 A paper bridge was tested three times. It held 310 g, 200 g and 390 g. What is the mean (average) load it held, in grams?
6. 6.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) two (d) all of them
7. 7.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) build it with straws (c) load it with coins (d) strengthen the weak part
8. 8.🧪 A paper bridge was tested three times. It held 250 g, 150 g and 50 g. What is the mean (average) load it held, in grams?
9. 9.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
10. 10.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) use a new load each time (d) skip writing results
11. 11.🔢 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) sketch three ideas
12. 12.🧪 A paper bridge was tested three times. It held 320 g, 300 g and 280 g. What is the mean (average) load it held, in grams?
13. 13.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to test ideas cheaply (c) to sell them at once (d) to decorate a room
14. 14.True or false: to use the same load is good testing. (a) False (b) True
15. 15.🧪 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
16. 16.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the strongest? (a) design B (b) design A (c) design C
18. 18.True or false: to guess, do not measure is good testing. (a) True (b) False
19. 19.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
20. 20.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) strengthen the weak part (c) sketch three ideas (d) load it with coins
21. 21.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) read the challenge rules (c) sketch three ideas (d) strengthen the weak part
22. 22.True or false: to test it only once is good testing. (a) True (b) False
23. 23.🔢 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
24. 24.🧪 A paper bridge was tested three times. It held 340 g, 240 g and 260 g. What is the mean (average) load it held, in grams?
25. 25.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) hide a failed test (d) measure the same way
26. 26.🔍 Which is the odd one out? (a) change lots at once (b) use the same load (c) change only one thing (d) record every result
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 290 g and design C held 240 g. Which design was the strongest? (a) design B (b) design A (c) design C
28. 28.🧪 A paper bridge was tested three times. It held 420 g, 340 g and 290 g. What is the mean (average) load it held, in grams?
29. 29.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
30. 30.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
31. 31.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
32. 32.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
33. 33.🧪 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 weakest? (a) design C (b) design A (c) design B
34. 34.🧪 A paper bridge was tested three times. It held 190 g, 150 g and 200 g. What is the mean (average) load it held, in grams?
35. 35.🧪 A paper bridge was tested three times. It held 350 g, 240 g and 190 g. What is the mean (average) load it held, in grams?
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 380 g. Which design was the weakest? (a) design C (b) design B (c) design A
37. 37.🧪 A paper bridge was tested three times. It held 380 g, 310 g and 330 g. What is the mean (average) load it held, in grams?
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the strongest? (a) design B (b) design A (c) design C
39. 39.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) skip writing results (d) measure the same way
40. 40.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing

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