Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 500 · 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.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
2. 2.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
3. 3.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
4. 4.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
5. 5.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) the final product (d) an early test model
6. 6.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) load it with coins (c) read the challenge rules (d) build it with straws
7. 7.🔍 Which is the odd one out? (a) hide a failed test (b) measure the same way (c) skip writing results (d) guess, do not measure
8. 8.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
9. 9.True or false: to use a new load each time is poor testing. (a) False (b) True
10. 10.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to decorate a room (d) to test ideas cheaply
11. 11.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
12. 12.🧪 A paper bridge was tested three times. It held 340 g, 140 g and 240 g. What is the mean (average) load it held, in grams?
13. 13.True or false: to use a new load each time is good testing. (a) True (b) False
14. 14.🔢 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
15. 15.True or false: to record every result is poor testing. (a) True (b) False
16. 16.🧪 A paper bridge was tested three times. It held 260 g, 150 g and 100 g. What is the mean (average) load it held, in grams?
17. 17.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) measure the same way (d) guess, do not measure
18. 18.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) hide a failed test (d) guess, do not measure
19. 19.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
20. 20.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) build it with straws (b) choose and draw one
21. 21.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “build it with straws”? (a) sketch three ideas (b) build it with straws
22. 22.True or false: to use the same load is good testing. (a) False (b) True
23. 23.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) read the challenge rules (c) strengthen the weak part (d) choose and draw one
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 240 g and design C held 190 g. Which design was the strongest? (a) design C (b) design B (c) design A
25. 25.🧪 A paper bridge was tested three times. It held 310 g, 250 g and 340 g. What is the mean (average) load it held, in grams?
26. 26.True or false: to change only one thing is poor testing. (a) True (b) False
27. 27.True or false: to change lots at once is poor testing. (a) True (b) False
28. 28.🧪 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 weakest? (a) design B (b) design A (c) design C
29. 29.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) measure the same way (d) use a new load each time
30. 30.🧪 A paper bridge was tested three times. It held 270 g, 210 g and 300 g. What is the mean (average) load it held, in grams?
31. 31.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
32. 32.🧪 A paper bridge was tested three times. It held 190 g, 130 g and 130 g. What is the mean (average) load it held, in grams?
33. 33.🧪 A paper bridge was tested three times. It held 350 g, 180 g and 250 g. What is the mean (average) load it held, in grams?
34. 34.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
35. 35.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) choose and draw one (d) sketch three ideas
36. 36.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) test it only once (d) repeat each test
37. 37.🧪 A paper bridge was tested three times. It held 260 g, 110 g and 110 g. What is the mean (average) load it held, in grams?
38. 38.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
39. 39.🧪 A paper bridge was tested three times. It held 280 g, 190 g and 160 g. What is the mean (average) load it held, in grams?
40. 40.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing

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