Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 606 · 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) hide a failed test (b) guess, do not measure (c) test it only once (d) record every result
2. 2.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
3. 3.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
4. 4.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) load it with coins (c) strengthen the weak part (d) sketch three ideas
5. 5.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 480 g. How many more grams did it hold?
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 160 g and design C held 210 g. Which design was the weakest? (a) design B (b) design A (c) design C
7. 7.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) skip writing results (d) hide a failed test
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 160 g and design C held 210 g. Which design was the strongest? (a) design B (b) design A (c) design C
9. 9.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) one (d) all of them
10. 10.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) to use more paper (d) it looks busy
11. 11.🧪 A paper bridge was tested three times. It held 330 g, 210 g and 180 g. What is the mean (average) load it held, in grams?
12. 12.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) choose and draw one (b) build it with straws
13. 13.🔍 Which is the odd one out? (a) use the same load (b) change lots at once (c) use a new load each time (d) skip writing results
14. 14.🧪 A paper bridge was tested three times. It held 380 g, 290 g and 380 g. What is the mean (average) load it held, in grams?
15. 15.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
16. 16.🧪 A paper bridge was tested three times. It held 380 g, 310 g and 360 g. What is the mean (average) load it held, in grams?
17. 17.🧪 A paper bridge was tested three times. It held 160 g, 60 g and 230 g. What is the mean (average) load it held, in grams?
18. 18.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) build it with straws (c) sketch three ideas (d) read the challenge rules
19. 19.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
20. 20.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
21. 21.🧪 A paper bridge was tested three times. It held 310 g, 130 g and 220 g. What is the mean (average) load it held, in grams?
22. 22.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
23. 23.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
24. 24.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
25. 25.True or false: to use a new load each time is good testing. (a) True (b) False
26. 26.True or false: to repeat each test is poor testing. (a) False (b) True
27. 27.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
28. 28.🧪 A paper bridge was tested three times. It held 230 g, 180 g and 160 g. What is the mean (average) load it held, in grams?
29. 29.🧪 A paper bridge was tested three times. It held 300 g, 200 g and 160 g. What is the mean (average) load it held, in grams?
30. 30.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) change only one thing (d) hide a failed test
31. 31.True or false: to guess, do not measure is poor testing. (a) True (b) False
32. 32.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?
33. 33.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) use a new load each time (d) hide a failed test
34. 34.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
35. 35.True or false: to change only one thing is poor testing. (a) False (b) True
36. 36.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
37. 37.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) strengthen the weak part (b) build it with straws
38. 38.🧪 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 A (b) design B (c) design C
39. 39.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
40. 40.True or false: to skip writing results is good testing. (a) False (b) True

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