Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 323 · 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.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) change lots at once (d) change only one thing
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 B (b) design C (c) design A
3. 3.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) measure the same way (d) repeat each test
4. 4.True or false: to measure the same way is good testing. (a) False (b) True
5. 5.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 310 g. Which design was the weakest? (a) design C (b) design A (c) design B
7. 7.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) sketch three ideas (c) choose and draw one (d) strengthen the weak part
8. 8.True or false: to use the same load is good testing. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) record every result (d) use a new load each time
10. 10.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) test it only once (d) measure the same way
11. 11.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 170 g and design C held 220 g. Which design was the weakest? (a) design A (b) design C (c) design B
13. 13.🧪 In a fair test, how many things do you change at a time? (a) two (b) one (c) all of them (d) none
14. 14.True or false: to change lots at once is good testing. (a) True (b) False
15. 15.🧪 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 A (b) design C (c) design B
16. 16.🧪 A paper bridge was tested three times. It held 270 g, 200 g and 160 g. What is the mean (average) load it held, in grams?
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 140 g. Which design was the weakest? (a) design C (b) design A (c) design B
18. 18.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 440 g. How many more grams did it hold?
19. 19.🧪 A paper bridge was tested three times. It held 180 g, 90 g and 270 g. What is the mean (average) load it held, in grams?
20. 20.True or false: to record every result is poor testing. (a) False (b) True
21. 21.True or false: to skip writing results is good testing. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) hide a failed test (b) guess, do not measure (c) use a new load each time (d) change only one thing
23. 23.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 430 g. How many more grams did it hold?
24. 24.🧪 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 A (b) design B (c) design C
25. 25.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) build it with straws (b) strengthen the weak part (c) load it with coins (d) choose and draw one
26. 26.🧪 A paper bridge was tested three times. It held 260 g, 110 g and 140 g. What is the mean (average) load it held, in grams?
27. 27.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
28. 28.🧪 A paper bridge was tested three times. It held 360 g, 200 g and 250 g. What is the mean (average) load it held, in grams?
29. 29.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
30. 30.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
31. 31.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
32. 32.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
33. 33.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
34. 34.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
35. 35.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) guess, do not measure (d) repeat each test
36. 36.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
37. 37.🧪 A paper bridge was tested three times. It held 290 g, 200 g and 110 g. What is the mean (average) load it held, in grams?
38. 38.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) guess, do not measure (d) measure the same way
39. 39.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
40. 40.🧪 A paper bridge was tested three times. It held 320 g, 190 g and 360 g. What is the mean (average) load it held, in grams?

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