Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 876 · 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) read the challenge rules (b) strengthen the weak part (c) sketch three ideas (d) build it with straws
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the strongest? (a) design B (b) design C (c) design A
3. 3.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
4. 4.True or false: to use the same load is good testing. (a) False (b) True
5. 5.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “build it with straws”? (a) sketch three ideas (b) build it with straws
6. 6.True or false: to use a new load each time is good testing. (a) True (b) False
7. 7.True or false: to hide a failed test is poor testing. (a) True (b) False
8. 8.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
9. 9.True or false: to use a new load each time is poor testing. (a) False (b) True
10. 10.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
11. 11.🧪 A paper bridge was tested three times. It held 260 g, 140 g and 200 g. What is the mean (average) load it held, in grams?
12. 12.🧪 A paper bridge was tested three times. It held 400 g, 330 g and 290 g. What is the mean (average) load it held, in grams?
13. 13.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 400 g. Which design was the weakest? (a) design C (b) design B (c) design A
15. 15.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
16. 16.🔍 Which is the odd one out? (a) change only one thing (b) change lots at once (c) use a new load each time (d) skip writing results
17. 17.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
18. 18.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) two (d) all of them
19. 19.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 370 g and design C held 320 g. Which design was the weakest? (a) design B (b) design C (c) design A
21. 21.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) record every result (d) use a new load each time
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 190 g and design C held 240 g. Which design was the strongest? (a) design C (b) design A (c) design B
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 110 g. Which design was the weakest? (a) design B (b) design C (c) design A
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 380 g. Which design was the strongest? (a) design A (b) design B (c) design C
25. 25.🧪 A paper bridge was tested three times. It held 360 g, 270 g and 420 g. What is the mean (average) load it held, in grams?
26. 26.🔢 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
27. 27.True or false: to record every result is poor testing. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) hide a failed test (b) skip writing results (c) guess, do not measure (d) measure the same way
29. 29.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) repeat each test (d) guess, do not measure
30. 30.True or false: to repeat each test is poor testing. (a) True (b) False
31. 31.True or false: to use the same load is poor testing. (a) True (b) False
32. 32.True or false: to test it only once is poor testing. (a) False (b) True
33. 33.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
34. 34.🔍 Which is the odd one out? (a) skip writing results (b) use a new load each time (c) hide a failed test (d) use the same load
35. 35.🔍 Which is the odd one out? (a) repeat each test (b) skip writing results (c) measure the same way (d) use the same load
36. 36.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to get reliable results (d) to use more paper
37. 37.🧪 What is a prototype? (a) the final product (b) a broken part (c) a sales poster (d) an early test model
38. 38.🧪 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 A (b) design B (c) design C
39. 39.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) record every result (d) test it only once
40. 40.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) read the challenge rules (b) load it with coins

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