Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 203 · 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 hide a failed test? (a) good testing (b) poor testing
2. 2.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) choose and draw one (c) load it with coins (d) strengthen the weak part
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design C (b) design B (c) design A
4. 4.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
5. 5.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
6. 6.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
7. 7.True or false: to record every result is good testing. (a) False (b) True
8. 8.True or false: to measure the same way is good testing. (a) True (b) False
9. 9.🧪 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
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 340 g. Which design was the strongest? (a) design B (b) design A (c) design C
11. 11.🔍 Which is the odd one out? (a) use the same load (b) repeat each test (c) hide a failed test (d) measure the same way
12. 12.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
13. 13.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
14. 14.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 320 g. What is the mean (average) load it held, in grams?
15. 15.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
16. 16.🧪 A paper bridge was tested three times. It held 210 g, 160 g and 140 g. What is the mean (average) load it held, in grams?
17. 17.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
18. 18.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
19. 19.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
20. 20.🧪 A paper bridge was tested three times. It held 400 g, 260 g and 300 g. What is the mean (average) load it held, in grams?
21. 21.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) choose and draw one (c) strengthen the weak part (d) read the challenge rules
22. 22.🔍 Which is the odd one out? (a) repeat each test (b) guess, do not measure (c) use the same load (d) change only one thing
23. 23.🔍 Which is the odd one out? (a) guess, do not measure (b) hide a failed test (c) measure the same way (d) use a new load each time
24. 24.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) sketch three ideas (c) read the challenge rules (d) choose and draw one
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 270 g. Which design was the strongest? (a) design A (b) design B (c) design C
26. 26.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
27. 27.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
28. 28.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) measure the same way (d) change lots at once
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 100 g. Which design was the strongest? (a) design C (b) design A (c) design B
30. 30.🧪 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
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the weakest? (a) design C (b) design A (c) design B
32. 32.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
33. 33.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) change lots at once (d) test it only once
34. 34.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) sketch three ideas (c) choose and draw one (d) strengthen the weak part
35. 35.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) load it with coins (c) choose and draw one (d) strengthen the weak part
36. 36.🧪 A paper bridge was tested three times. It held 290 g, 250 g and 270 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) to get reliable results (d) the first is wrong
38. 38.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) change only one thing (d) test it only once
39. 39.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
40. 40.True or false: to guess, do not measure is poor testing. (a) True (b) False

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