Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 856 · 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 change lots at once? (a) good testing (b) poor testing
2. 2.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
3. 3.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
4. 4.True or false: to repeat each test is poor testing. (a) False (b) True
5. 5.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to decorate a room (d) to avoid testing
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 200 g and design C held 150 g. Which design was the weakest? (a) design B (b) design C (c) design A
7. 7.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
8. 8.True or false: to use the same load is good testing. (a) False (b) True
9. 9.True or false: to record every result is good testing. (a) False (b) True
10. 10.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) choose and draw one (c) build it with straws (d) load it with coins
11. 11.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) to get reliable results (d) the first is wrong
12. 12.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
13. 13.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) guess, do not measure (d) record every result
14. 14.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
15. 15.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) load it with coins (c) read the challenge rules (d) build it with straws
16. 16.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) change lots at once (d) hide a failed test
17. 17.🧪 A paper bridge was tested three times. It held 320 g, 300 g and 310 g. What is the mean (average) load it held, in grams?
18. 18.True or false: to repeat each test is good testing. (a) False (b) True
19. 19.🧪 A paper bridge was tested three times. It held 220 g, 130 g and 130 g. What is the mean (average) load it held, in grams?
20. 20.🧪 A paper bridge was tested three times. It held 380 g, 200 g and 290 g. What is the mean (average) load it held, in grams?
21. 21.🧪 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
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 240 g and design C held 190 g. Which design was the strongest? (a) design C (b) design A (c) design B
23. 23.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
24. 24.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) sketch three ideas (b) read the challenge rules
25. 25.🧪 A paper bridge was tested three times. It held 350 g, 230 g and 320 g. What is the mean (average) load it held, in grams?
26. 26.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) hide a failed test (d) change only one thing
27. 27.🔍 Which is the odd one out? (a) record every result (b) guess, do not measure (c) repeat each test (d) use the same load
28. 28.True or false: to measure the same way is good testing. (a) True (b) False
29. 29.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
30. 30.🧪 A paper bridge was tested three times. It held 260 g, 130 g and 210 g. What is the mean (average) load it held, in grams?
31. 31.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) load it with coins (c) strengthen the weak part (d) choose and draw one
32. 32.True or false: to measure the same way is poor testing. (a) False (b) True
33. 33.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) choose and draw one (c) load it with coins (d) strengthen the weak part
34. 34.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
35. 35.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
36. 36.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) use a new load each time (d) change lots at once
37. 37.True or false: to guess, do not measure is poor testing. (a) False (b) True
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the strongest? (a) design C (b) design A (c) design B
39. 39.🧪 What is a prototype? (a) the final product (b) a sales poster (c) an early test model (d) a broken part
40. 40.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) skip writing results (d) change only one thing

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