Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 489 · 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) change lots at once (b) skip writing results (c) change only one thing (d) use a new load each time
2. 2.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
3. 3.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
4. 4.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design B (b) design A (c) design C
6. 6.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
7. 7.True or false: to use a new load each time is poor testing. (a) False (b) True
8. 8.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
9. 9.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
10. 10.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
11. 11.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) load it with coins (c) strengthen the weak part (d) read the challenge rules
12. 12.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
13. 13.True or false: to change lots at once is good testing. (a) False (b) True
14. 14.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 250 g. Which design was the strongest? (a) design A (b) design C (c) design B
16. 16.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
17. 17.🧪 A paper bridge was tested three times. It held 400 g, 300 g and 290 g. What is the mean (average) load it held, in grams?
18. 18.🧪 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 A (b) design C (c) design B
19. 19.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
20. 20.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) guess, do not measure (d) record every result
21. 21.🔍 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
22. 22.🔍 Which is the odd one out? (a) measure the same way (b) use a new load each time (c) use the same load (d) record every result
23. 23.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
24. 24.True or false: to use a new load each time is good testing. (a) False (b) True
25. 25.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
26. 26.True or false: to test it only once is good testing. (a) True (b) False
27. 27.True or false: to repeat each test is good testing. (a) False (b) True
28. 28.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) strengthen the weak part (b) sketch three ideas
29. 29.🧪 A paper bridge was tested three times. It held 350 g, 220 g and 300 g. What is the mean (average) load it held, in grams?
30. 30.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) choose and draw one
31. 31.🧪 A paper bridge was tested three times. It held 330 g, 170 g and 220 g. What is the mean (average) load it held, in grams?
32. 32.True or false: to measure the same way is poor testing. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) use the same load (b) hide a failed test (c) repeat each test (d) record every result
34. 34.True or false: to skip writing results is good testing. (a) True (b) False
35. 35.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
36. 36.True or false: to record every result is poor testing. (a) False (b) True
37. 37.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) load it with coins (b) choose and draw one
38. 38.True or false: to change lots at once is poor testing. (a) True (b) False
39. 39.True or false: to change only one thing is good testing. (a) False (b) True
40. 40.🧪 A paper bridge was tested three times. It held 260 g, 200 g and 260 g. What is the mean (average) load it held, in grams?

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