Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 110 · 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.True or false: to guess, do not measure is poor testing. (a) False (b) True
2. 2.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) all of them (d) one
3. 3.True or false: to test it only once is poor testing. (a) False (b) True
4. 4.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
5. 5.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
6. 6.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) to use more paper (d) the first is wrong
7. 7.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
8. 8.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) load it with coins (b) build it with straws
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 300 g. Which design was the weakest? (a) design C (b) design B (c) design A
10. 10.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
11. 11.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 280 g. Which design was the strongest? (a) design C (b) design B (c) design A
13. 13.🧪 A paper bridge was tested three times. It held 240 g, 170 g and 220 g. What is the mean (average) load it held, in grams?
14. 14.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) strengthen the weak part (c) build it with straws (d) choose and draw one
15. 15.🧪 A paper bridge was tested three times. It held 230 g, 120 g and 310 g. What is the mean (average) load it held, in grams?
16. 16.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) change lots at once (d) skip writing results
17. 17.🔢 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) choose and draw one
18. 18.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
19. 19.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) change only one thing (d) guess, do not measure
20. 20.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
21. 21.🧪 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 weakest? (a) design B (b) design A (c) design C
22. 22.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) use a new load each time (d) use the same load
23. 23.🔍 Which is the odd one out? (a) use a new load each time (b) measure the same way (c) guess, do not measure (d) skip writing results
24. 24.🔢 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) sketch three ideas
25. 25.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
26. 26.True or false: to record every result is poor testing. (a) True (b) False
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.True or false: to use the same load is poor testing. (a) False (b) True
29. 29.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) load it with coins (b) build it with straws
30. 30.True or false: to guess, do not measure is good testing. (a) False (b) True
31. 31.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design C (b) design B (c) design A
33. 33.🧪 A paper bridge was tested three times. It held 280 g, 240 g and 200 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to record every result is good testing. (a) False (b) True
35. 35.🧪 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 B (c) design A
36. 36.🧪 A paper bridge was tested three times. It held 200 g, 110 g and 290 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 200 g. Which design was the weakest? (a) design B (b) design C (c) design A
38. 38.🧪 What is a prototype? (a) an early test model (b) the final product (c) a sales poster (d) a broken part
39. 39.🧪 A paper bridge was tested three times. It held 240 g, 120 g and 300 g. What is the mean (average) load it held, in grams?
40. 40.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) skip writing results (d) use the same load

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