Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 482 · 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 FIRST step? (a) sketch three ideas (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
2. 2.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) choose and draw one (c) sketch three ideas (d) load it with coins
3. 3.🔍 Which is the odd one out? (a) change only one thing (b) change lots at once (c) test it only once (d) guess, do not measure
4. 4.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
5. 5.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) test it only once (d) hide a failed test
6. 6.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 200 g and design C held 250 g. Which design was the weakest? (a) design C (b) design A (c) design B
8. 8.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
9. 9.True or false: to use the same load is poor testing. (a) True (b) False
10. 10.🧪 A paper bridge was tested three times. It held 220 g, 150 g and 230 g. What is the mean (average) load it held, in grams?
11. 11.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to decorate a room (c) to avoid testing (d) to sell them at once
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 130 g and design C held 230 g. Which design was the strongest? (a) design C (b) design A (c) design B
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 250 g. Which design was the strongest? (a) design B (b) design A (c) design C
14. 14.True or false: to measure the same way is poor testing. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) hide a failed test (b) record every result (c) change lots at once (d) skip writing results
16. 16.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to get reliable results (d) to use more paper
17. 17.🧪 In a fair test, how many things do you change at a time? (a) two (b) one (c) all of them (d) none
18. 18.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) choose and draw one
19. 19.True or false: to use a new load each time is good testing. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) record every result (d) repeat each test
21. 21.True or false: to hide a failed test is poor testing. (a) True (b) False
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 300 g. Which design was the strongest? (a) design B (b) design C (c) design A
23. 23.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
24. 24.True or false: to guess, do not measure is poor testing. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) skip writing results (b) use the same load (c) repeat each test (d) record every result
26. 26.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
27. 27.True or false: to record every result is poor testing. (a) True (b) False
28. 28.True or false: to use a new load each time is poor testing. (a) True (b) False
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design A (b) design B (c) design C
30. 30.🔢 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) read the challenge rules (d) load it with coins
31. 31.🧪 A paper bridge was tested three times. It held 300 g, 240 g and 270 g. What is the mean (average) load it held, in grams?
32. 32.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
33. 33.True or false: to test it only once is good testing. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) hide a failed test (d) record every result
35. 35.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) read the challenge rules (c) strengthen the weak part (d) sketch three ideas
36. 36.True or false: to repeat each test is poor testing. (a) False (b) True
37. 37.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
38. 38.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) sketch three ideas (b) read the challenge rules
39. 39.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) build it with straws (c) sketch three ideas (d) strengthen the weak part
40. 40.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?

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