Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 641 · 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, which is the LAST step? (a) sketch three ideas (b) load it with coins (c) strengthen the weak part (d) read the challenge rules
2. 2.True or false: to use a new load each time is good testing. (a) True (b) False
3. 3.True or false: to test it only once is poor testing. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) record every result (b) change lots at once (c) measure the same way (d) repeat each test
5. 5.🧪 A paper bridge was tested three times. It held 310 g, 200 g and 390 g. What is the mean (average) load it held, in grams?
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 330 g. Which design was the strongest? (a) design B (b) design A (c) design C
7. 7.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
8. 8.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 300 g and design C held 350 g. Which design was the strongest? (a) design A (b) design B (c) design C
10. 10.🔍 Which is the odd one out? (a) change only one thing (b) use a new load each time (c) change lots at once (d) skip writing results
11. 11.🧪 A paper bridge was tested three times. It held 280 g, 160 g and 340 g. What is the mean (average) load it held, in grams?
12. 12.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) a broken part (d) the final product
13. 13.🔍 Which is the odd one out? (a) use the same load (b) hide a failed test (c) change lots at once (d) use a new load each time
14. 14.True or false: to repeat each test is good testing. (a) False (b) True
15. 15.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) all of them (d) one
16. 16.True or false: to measure the same way is poor testing. (a) True (b) False
17. 17.True or false: to change only one thing is good testing. (a) True (b) False
18. 18.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 380 g. Which design was the strongest? (a) design B (b) design A (c) design C
20. 20.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) sketch three ideas (c) load it with coins (d) read the challenge rules
21. 21.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
22. 22.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
23. 23.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
24. 24.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) strengthen the weak part (b) choose and draw one
25. 25.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) test it only once (d) record every result
26. 26.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) the first is wrong (d) it looks busy
27. 27.🧪 A paper bridge was tested three times. It held 360 g, 310 g and 380 g. What is the mean (average) load it held, in grams?
28. 28.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
29. 29.True or false: to hide a failed test is poor testing. (a) False (b) True
30. 30.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) choose and draw one (b) load it with coins
31. 31.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
32. 32.True or false: to record every result is good testing. (a) False (b) True
33. 33.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
34. 34.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) repeat each test (d) hide a failed test
35. 35.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
36. 36.True or false: to use a new load each time is poor testing. (a) True (b) False
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 210 g. Which design was the strongest? (a) design C (b) design A (c) design B
38. 38.🧪 A paper bridge was tested three times. It held 210 g, 180 g and 210 g. What is the mean (average) load it held, in grams?
39. 39.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
40. 40.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing

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