Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 959 · 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.True or false: to record every result is good testing. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) hide a failed test (b) measure the same way (c) use a new load each time (d) guess, do not measure
4. 4.🧪 In a fair test, how many things do you change at a time? (a) two (b) one (c) none (d) all of them
5. 5.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
6. 6.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) read the challenge rules (c) strengthen the weak part (d) build it with straws
7. 7.True or false: to guess, do not measure is poor testing. (a) True (b) False
8. 8.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
9. 9.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
10. 10.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
11. 11.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) to get reliable results (d) it looks busy
12. 12.🧪 A paper bridge was tested three times. It held 370 g, 270 g and 410 g. What is the mean (average) load it held, in grams?
13. 13.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
14. 14.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) skip writing results (d) repeat each test
15. 15.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
16. 16.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) load it with coins (c) sketch three ideas (d) read the challenge rules
17. 17.🔍 Which is the odd one out? (a) hide a failed test (b) record every result (c) change lots at once (d) skip writing results
18. 18.🧪 A paper bridge was tested three times. It held 210 g, 170 g and 220 g. What is the mean (average) load it held, in grams?
19. 19.🧪 A paper bridge was tested three times. It held 230 g, 120 g and 190 g. What is the mean (average) load it held, in grams?
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 150 g and design C held 100 g. Which design was the weakest? (a) design A (b) design B (c) design C
21. 21.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
22. 22.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
23. 23.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
24. 24.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) measure the same way (d) test it only once
25. 25.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
26. 26.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) build it with straws
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 120 g. Which design was the weakest? (a) design C (b) design A (c) design B
28. 28.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
29. 29.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
30. 30.True or false: to change lots at once is good testing. (a) False (b) True
31. 31.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 230 g. Which design was the weakest? (a) design C (b) design B (c) design A
33. 33.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) choose and draw one (d) load it with coins
34. 34.🧪 A paper bridge was tested three times. It held 270 g, 240 g and 300 g. What is the mean (average) load it held, in grams?
35. 35.🧪 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 strongest? (a) design A (b) design C (c) design B
36. 36.🔍 Which is the odd one out? (a) skip writing results (b) use a new load each time (c) guess, do not measure (d) use the same load
37. 37.🧪 A paper bridge was tested three times. It held 230 g, 130 g and 270 g. What is the mean (average) load it held, in grams?
38. 38.True or false: to change only one thing is good testing. (a) False (b) True
39. 39.🔢 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
40. 40.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing

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