Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 526 · 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 measure the same way? (a) poor testing (b) good testing
2. 2.True or false: to skip writing results is good testing. (a) False (b) True
3. 3.True or false: to change lots at once is good testing. (a) False (b) True
4. 4.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
5. 5.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) use the same load (d) repeat each test
6. 6.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) none (d) two
7. 7.🧪 A paper bridge was tested three times. It held 290 g, 190 g and 390 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to get reliable results (d) to use more paper
9. 9.True or false: to use the same load is poor testing. (a) False (b) True
10. 10.True or false: to measure the same way is good testing. (a) True (b) False
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 380 g. Which design was the weakest? (a) design C (b) design B (c) design A
12. 12.🔍 Which is the odd one out? (a) guess, do not measure (b) use the same load (c) use a new load each time (d) test it only once
13. 13.🧪 A paper bridge was tested three times. It held 210 g, 150 g and 210 g. What is the mean (average) load it held, in grams?
14. 14.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
15. 15.True or false: to change only one thing is good testing. (a) False (b) True
16. 16.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) load it with coins
17. 17.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
18. 18.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
19. 19.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) strengthen the weak part (b) read the challenge rules
20. 20.🧪 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 strongest? (a) design A (b) design B (c) design C
21. 21.🔍 Which is the odd one out? (a) change lots at once (b) test it only once (c) change only one thing (d) guess, do not measure
22. 22.🧪 A paper bridge was tested three times. It held 260 g, 90 g and 190 g. What is the mean (average) load it held, in grams?
23. 23.True or false: to repeat each test is good testing. (a) False (b) True
24. 24.🧪 A paper bridge was tested three times. It held 260 g, 180 g and 190 g. What is the mean (average) load it held, in grams?
25. 25.True or false: to change lots at once is poor testing. (a) False (b) True
26. 26.🧪 A paper bridge was tested three times. It held 290 g, 170 g and 320 g. What is the mean (average) load it held, in grams?
27. 27.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
28. 28.True or false: to skip writing results is poor testing. (a) False (b) True
29. 29.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
30. 30.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
31. 31.True or false: to guess, do not measure is good testing. (a) False (b) True
32. 32.🧪 A paper bridge was tested three times. It held 300 g, 180 g and 360 g. What is the mean (average) load it held, in grams?
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 270 g and design C held 320 g. Which design was the strongest? (a) design B (b) design C (c) design A
34. 34.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
35. 35.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
36. 36.🧪 A paper bridge was tested three times. It held 270 g, 80 g and 190 g. What is the mean (average) load it held, in grams?
37. 37.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) use a new load each time (d) measure the same way
38. 38.🧪 A paper bridge was tested three times. It held 370 g, 290 g and 210 g. What is the mean (average) load it held, in grams?
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the strongest? (a) design B (b) design A (c) design C
40. 40.🧪 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 C (b) design A (c) design B

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