Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 332 · 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 record every result? (a) good testing (b) poor testing
2. 2.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
3. 3.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
4. 4.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) two (d) one
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the weakest? (a) design A (b) design C (c) design B
6. 6.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) build it with straws (c) strengthen the weak part (d) choose and draw one
7. 7.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
8. 8.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
9. 9.🔍 Which is the odd one out? (a) record every result (b) test it only once (c) guess, do not measure (d) use a new load each time
10. 10.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
11. 11.🧪 Is it good or poor testing to guess, do not measure? (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.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) change lots at once (d) measure the same way
14. 14.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) sketch three ideas (b) choose and draw one
15. 15.True or false: to use a new load each time is poor testing. (a) False (b) True
16. 16.True or false: to change only one thing is poor testing. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) repeat each test (d) hide a failed test
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 360 g, design B held 260 g and design C held 310 g. Which design was the weakest? (a) design C (b) design A (c) design B
19. 19.🧪 A paper bridge was tested three times. It held 290 g, 200 g and 380 g. What is the mean (average) load it held, in grams?
20. 20.True or false: to record every result is poor testing. (a) False (b) True
21. 21.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
22. 22.🧪 A paper bridge was tested three times. It held 210 g, 180 g and 180 g. What is the mean (average) load it held, in grams?
23. 23.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) record every result (d) hide a failed test
24. 24.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 280 g. Which design was the strongest? (a) design B (b) design C (c) design A
26. 26.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) repeat each test (d) skip writing results
27. 27.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) repeat each test (d) measure the same way
28. 28.True or false: to test it only once is good testing. (a) True (b) False
29. 29.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
30. 30.True or false: to hide a failed test is poor testing. (a) False (b) True
31. 31.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
32. 32.True or false: to measure the same way is good testing. (a) False (b) True
33. 33.🧪 A paper bridge was tested three times. It held 180 g, 110 g and 190 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to change only one thing is good testing. (a) False (b) True
35. 35.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 210 g and design C held 160 g. Which design was the weakest? (a) design C (b) design B (c) design A
37. 37.🔢 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
38. 38.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
39. 39.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) repeat each test (d) test it only once
40. 40.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) build it with straws (c) strengthen the weak part (d) sketch three ideas

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