Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 287 · 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.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) choose and draw one (c) build it with straws (d) load it with coins
2. 2.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) read the challenge rules (c) strengthen the weak part (d) choose and draw one
3. 3.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) hide a failed test (d) use the same load
4. 4.🔍 Which is the odd one out? (a) change lots at once (b) change only one thing (c) use a new load each time (d) guess, do not measure
5. 5.🔍 Which is the odd one out? (a) measure the same way (b) change lots at once (c) change only one thing (d) record every result
6. 6.True or false: to repeat each test is good testing. (a) True (b) False
7. 7.🧪 A paper bridge was tested three times. It held 250 g, 130 g and 160 g. What is the mean (average) load it held, in grams?
8. 8.True or false: to change lots at once is poor testing. (a) False (b) True
9. 9.True or false: to skip writing results is poor testing. (a) True (b) False
10. 10.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) load it with coins (b) strengthen the weak part
11. 11.🧪 A paper bridge was tested three times. It held 230 g, 190 g and 240 g. What is the mean (average) load it held, in grams?
12. 12.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
13. 13.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
14. 14.🧪 What is a prototype? (a) an early test model (b) a broken part (c) a sales poster (d) the final product
15. 15.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
16. 16.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
17. 17.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules
18. 18.True or false: to test it only once is poor testing. (a) False (b) True
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 320 g. Which design was the weakest? (a) design B (b) design A (c) design C
20. 20.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) use a new load each time (d) repeat each test
21. 21.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) sketch three ideas (c) build it with straws (d) strengthen the weak part
22. 22.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
23. 23.True or false: to test it only once is good testing. (a) False (b) True
24. 24.True or false: to record every result is poor testing. (a) True (b) False
25. 25.🧪 A paper bridge was tested three times. It held 230 g, 160 g and 270 g. What is the mean (average) load it held, in grams?
26. 26.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
27. 27.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to avoid testing (d) to test ideas cheaply
28. 28.🧪 A paper bridge was tested three times. It held 320 g, 180 g and 310 g. What is the mean (average) load it held, in grams?
29. 29.True or false: to change only one thing is poor testing. (a) False (b) True
30. 30.True or false: to change only one thing is good testing. (a) False (b) True
31. 31.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) build it with straws (b) load it with coins
32. 32.🧪 A paper bridge was tested three times. It held 300 g, 200 g and 340 g. What is the mean (average) load it held, in grams?
33. 33.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
34. 34.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
35. 35.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas
36. 36.🧪 A paper bridge was tested three times. It held 360 g, 310 g and 320 g. What is the mean (average) load it held, in grams?
37. 37.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) measure the same way (d) test it only once
38. 38.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
39. 39.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
40. 40.🧪 A paper bridge was tested three times. It held 370 g, 260 g and 360 g. What is the mean (average) load it held, in grams?

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