Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 655 · 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 guess, do not measure? (a) poor testing (b) good testing
2. 2.True or false: to use the same load is poor testing. (a) False (b) True
3. 3.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
4. 4.True or false: to repeat each test is poor testing. (a) False (b) True
5. 5.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) build it with straws (c) read the challenge rules (d) load it with coins
6. 6.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) it looks busy (d) to get reliable results
7. 7.🔍 Which is the odd one out? (a) use the same load (b) hide a failed test (c) repeat each test (d) measure the same way
8. 8.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
9. 9.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to sell them at once (d) to decorate a room
10. 10.🔢 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) read the challenge rules
11. 11.True or false: to change lots at once is good testing. (a) False (b) True
12. 12.True or false: to guess, do not measure is poor testing. (a) True (b) False
13. 13.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 440 g. How many more grams did it hold?
14. 14.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) read the challenge rules (c) choose and draw one (d) load it with coins
15. 15.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
16. 16.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
17. 17.True or false: to change only one thing is good testing. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) measure the same way (b) guess, do not measure (c) test it only once (d) skip writing results
19. 19.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
20. 20.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) change lots at once (d) change only one thing
21. 21.🧪 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?
22. 22.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) build it with straws (c) choose and draw one (d) load it with coins
23. 23.True or false: to test it only once is poor testing. (a) False (b) True
24. 24.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
25. 25.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
26. 26.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
27. 27.🔢 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
28. 28.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
29. 29.🧪 A paper bridge was tested three times. It held 360 g, 280 g and 380 g. What is the mean (average) load it held, in grams?
30. 30.🧪 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 strongest? (a) design B (b) design C (c) design A
31. 31.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) build it with straws (b) choose and draw one
32. 32.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
33. 33.🧪 A paper bridge was tested three times. It held 250 g, 200 g and 240 g. What is the mean (average) load it held, in grams?
34. 34.🧪 A paper bridge was tested three times. It held 300 g, 250 g and 320 g. What is the mean (average) load it held, in grams?
35. 35.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
36. 36.🧪 A paper bridge was tested three times. It held 340 g, 260 g and 240 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
38. 38.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
39. 39.🔍 Which is the odd one out? (a) skip writing results (b) record every result (c) use a new load each time (d) guess, do not measure
40. 40.🔢 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

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