Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 651 · 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 measure the same way? (a) poor testing (b) good testing
2. 2.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) guess, do not measure (d) test it only once
3. 3.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
4. 4.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
5. 5.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) load it with coins (c) choose and draw one (d) strengthen the weak part
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design C (b) design A (c) design B
7. 7.True or false: to measure the same way is poor testing. (a) True (b) False
8. 8.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
9. 9.True or false: to repeat each test is good testing. (a) True (b) False
10. 10.True or false: to skip writing results is poor testing. (a) True (b) False
11. 11.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
12. 12.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
13. 13.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
14. 14.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) repeat each test (d) hide a failed test
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 180 g. Which design was the weakest? (a) design B (b) design A (c) design C
16. 16.🧪 A paper bridge was tested three times. It held 280 g, 160 g and 100 g. What is the mean (average) load it held, in grams?
17. 17.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
18. 18.True or false: to hide a failed test is poor testing. (a) False (b) True
19. 19.True or false: to measure the same way is good testing. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) skip writing results (b) guess, do not measure (c) hide a failed test (d) measure the same way
21. 21.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
22. 22.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
23. 23.True or false: to guess, do not measure is good testing. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) use a new load each time (b) change only one thing (c) repeat each test (d) use the same load
25. 25.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) sketch three ideas (c) choose and draw one (d) build it with straws
26. 26.🔢 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
27. 27.🧪 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
28. 28.🧪 A paper bridge was tested three times. It held 350 g, 240 g and 400 g. What is the mean (average) load it held, in grams?
29. 29.🧪 What is a prototype? (a) the final product (b) an early test model (c) a broken part (d) a sales poster
30. 30.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
31. 31.🧪 A paper bridge was tested three times. It held 220 g, 100 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: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the strongest? (a) design A (b) design B (c) design C
34. 34.🔍 Which is the odd one out? (a) use the same load (b) guess, do not measure (c) skip writing results (d) use a new load each time
35. 35.🔢 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
36. 36.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) choose and draw one (b) load it with coins
37. 37.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) sketch three ideas (c) strengthen the weak part (d) load it with coins
38. 38.🔍 Which is the odd one out? (a) skip writing results (b) use the same load (c) measure the same way (d) repeat each test
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 130 g. Which design was the strongest? (a) design A (b) design C (c) design B
40. 40.🧪 A paper bridge was tested three times. It held 210 g, 140 g and 100 g. What is the mean (average) load it held, in grams?

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