Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 614 · 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) repeat each test (b) use the same load (c) use a new load each time (d) change only one thing
2. 2.🧪 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 B (b) design C (c) design A
3. 3.True or false: to change only one thing is poor testing. (a) False (b) True
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 240 g and design C held 290 g. Which design was the strongest? (a) design B (b) design C (c) design A
5. 5.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
6. 6.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
7. 7.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) change only one thing (d) use the same load
8. 8.🧪 A paper bridge was tested three times. It held 310 g, 250 g and 310 g. What is the mean (average) load it held, in grams?
9. 9.🔍 Which is the odd one out? (a) use a new load each time (b) skip writing results (c) use the same load (d) change lots at once
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 360 g and design C held 310 g. Which design was the strongest? (a) design A (b) design C (c) design B
11. 11.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
12. 12.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) build it with straws (b) strengthen the weak part
13. 13.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) choose and draw one (c) sketch three ideas (d) build it with straws
14. 14.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
15. 15.🧪 What is a prototype? (a) an early test model (b) the final product (c) a broken part (d) a sales poster
16. 16.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to decorate a room (c) to test ideas cheaply (d) to sell them at once
17. 17.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design B (b) design C (c) design A
19. 19.True or false: to guess, do not measure is good testing. (a) False (b) True
20. 20.🧪 A paper bridge was tested three times. It held 370 g, 260 g and 210 g. What is the mean (average) load it held, in grams?
21. 21.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) repeat each test (d) change only one thing
22. 22.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
23. 23.🧪 A paper bridge was tested three times. It held 240 g, 180 g and 210 g. What is the mean (average) load it held, in grams?
24. 24.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) none (d) one
25. 25.🧪 A paper bridge was tested three times. It held 240 g, 140 g and 160 g. What is the mean (average) load it held, in grams?
26. 26.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
27. 27.🧪 A paper bridge was tested three times. It held 200 g, 190 g and 180 g. What is the mean (average) load it held, in grams?
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 150 g. Which design was the strongest? (a) design C (b) design A (c) design B
29. 29.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) change only one thing (d) measure the same way
30. 30.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) sketch three ideas (b) strengthen the weak part
31. 31.🧪 A paper bridge was tested three times. It held 290 g, 180 g and 250 g. What is the mean (average) load it held, in grams?
32. 32.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) strengthen the weak part (b) read the challenge rules
33. 33.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) guess, do not measure (d) measure the same way
34. 34.True or false: to change lots at once is poor testing. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) use a new load each time (d) skip writing results
36. 36.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) skip writing results (d) change only one thing
37. 37.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 370 g. Which design was the strongest? (a) design B (b) design A (c) design C
39. 39.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) record every result (d) change lots at once
40. 40.True or false: to hide a failed test is poor testing. (a) False (b) True

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