Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 311 · 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 comes first: “build it with straws” or “load it with coins”? (a) load it with coins (b) build it with straws
2. 2.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) sketch three ideas (c) strengthen the weak part (d) load it with coins
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 320 g. Which design was the strongest? (a) design B (b) design C (c) design A
4. 4.🧪 A paper bridge was tested three times. It held 290 g, 100 g and 180 g. What is the mean (average) load it held, in grams?
5. 5.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
6. 6.🔍 Which is the odd one out? (a) change only one thing (b) test it only once (c) repeat each test (d) measure the same way
7. 7.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
8. 8.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
9. 9.True or false: to measure the same way is poor testing. (a) False (b) True
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 140 g. Which design was the weakest? (a) design A (b) design B (c) design C
11. 11.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) skip writing results (d) measure the same way
12. 12.🔍 Which is the odd one out? (a) measure the same way (b) hide a failed test (c) record every result (d) repeat each test
13. 13.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
14. 14.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) all of them (d) one
15. 15.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) repeat each test (d) change lots at once
16. 16.True or false: to test it only once is good testing. (a) False (b) True
17. 17.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
18. 18.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) use a new load each time (d) record every result
19. 19.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
20. 20.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
21. 21.True or false: to change lots at once is good testing. (a) False (b) True
22. 22.True or false: to use the same load is good testing. (a) True (b) False
23. 23.True or false: to measure the same way is good testing. (a) False (b) True
24. 24.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) sketch three ideas (c) strengthen the weak part (d) choose and draw one
25. 25.🔍 Which is the odd one out? (a) hide a failed test (b) record every result (c) skip writing results (d) test it only once
26. 26.🧪 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 A (b) design C (c) design B
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 360 g, design B held 310 g and design C held 260 g. Which design was the weakest? (a) design A (b) design B (c) design C
28. 28.True or false: to guess, do not measure is poor testing. (a) False (b) True
29. 29.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
30. 30.🔢 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
31. 31.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
32. 32.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to sell them at once (d) to avoid testing
33. 33.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
34. 34.True or false: to record every result is good testing. (a) False (b) True
35. 35.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
36. 36.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
37. 37.True or false: to repeat each test is good testing. (a) False (b) True
38. 38.🔢 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) read the challenge rules
39. 39.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) strengthen the weak part (b) choose and draw one
40. 40.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) record every result (d) guess, do not measure

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