Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 478 · 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.True or false: to record every result is poor testing. (a) True (b) False
2. 2.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
3. 3.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
4. 4.True or false: to skip writing results is poor testing. (a) True (b) False
5. 5.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
6. 6.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) two (d) one
7. 7.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) build it with straws (c) sketch three ideas (d) load it with coins
8. 8.🧪 A paper bridge was tested three times. It held 390 g, 240 g and 270 g. What is the mean (average) load it held, in grams?
9. 9.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
10. 10.🧪 A paper bridge was tested three times. It held 220 g, 180 g and 260 g. What is the mean (average) load it held, in grams?
11. 11.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
12. 12.True or false: to use the same load is poor testing. (a) False (b) True
13. 13.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
14. 14.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) change only one thing (d) change lots at once
15. 15.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) load it with coins (c) sketch three ideas (d) choose and draw one
16. 16.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 490 g. How many more grams did it hold?
17. 17.🔍 Which is the odd one out? (a) hide a failed test (b) guess, do not measure (c) change only one thing (d) change lots at once
18. 18.True or false: to skip writing results is good testing. (a) True (b) False
19. 19.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to decorate a room (c) to test ideas cheaply (d) to sell them at once
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 300 g. Which design was the strongest? (a) design B (b) design C (c) design A
21. 21.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) build it with straws (c) choose and draw one (d) read the challenge rules
22. 22.True or false: to change lots at once is good testing. (a) True (b) False
23. 23.True or false: to measure the same way is poor testing. (a) True (b) False
24. 24.True or false: to change only one thing is poor testing. (a) True (b) False
25. 25.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) load it with coins (b) sketch three ideas
26. 26.🧪 A paper bridge was tested three times. It held 190 g, 160 g and 190 g. What is the mean (average) load it held, in grams?
27. 27.🧪 A paper bridge was tested three times. It held 400 g, 300 g and 260 g. What is the mean (average) load it held, in grams?
28. 28.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) skip writing results (d) repeat each test
29. 29.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) read the challenge rules (c) sketch three ideas (d) build it with straws
30. 30.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 380 g and design C held 330 g. Which design was the strongest? (a) design A (b) design C (c) design B
32. 32.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
33. 33.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) choose and draw one (b) strengthen the weak part
34. 34.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) measure the same way (d) repeat each test
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 170 g and design C held 220 g. Which design was the strongest? (a) design A (b) design C (c) design B
36. 36.🧪 A paper bridge was tested three times. It held 380 g, 260 g and 380 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
38. 38.🔢 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
39. 39.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) sketch three ideas (b) strengthen the weak part
40. 40.🧪 A paper bridge was tested three times. It held 300 g, 230 g and 370 g. What is the mean (average) load it held, in grams?

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