Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 486 · 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 guess, do not measure is poor testing. (a) True (b) False
2. 2.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 150 g and design C held 200 g. Which design was the weakest? (a) design C (b) design B (c) design A
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 190 g. Which design was the weakest? (a) design A (b) design B (c) design C
5. 5.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
6. 6.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
7. 7.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to avoid testing (d) to decorate a room
8. 8.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
9. 9.🔍 Which is the odd one out? (a) change lots at once (b) skip writing results (c) use a new load each time (d) measure the same way
10. 10.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
11. 11.🔍 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
12. 12.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
13. 13.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
14. 14.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) read the challenge rules (b) strengthen the weak part
15. 15.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) strengthen the weak part (b) read the challenge rules (c) build it with straws (d) sketch three ideas
16. 16.🧪 A paper bridge was tested three times. It held 170 g, 170 g and 170 g. What is the mean (average) load it held, in grams?
17. 17.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
18. 18.🧪 A paper bridge was tested three times. It held 190 g, 170 g and 180 g. What is the mean (average) load it held, in grams?
19. 19.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) use the same load (d) use a new load each time
20. 20.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
21. 21.🧪 A paper bridge was tested three times. It held 230 g, 160 g and 300 g. What is the mean (average) load it held, in grams?
22. 22.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
23. 23.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) build it with straws (d) sketch three ideas
24. 24.True or false: to test it only once is poor testing. (a) True (b) False
25. 25.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
26. 26.True or false: to use the same load is good testing. (a) False (b) True
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 390 g and design C held 340 g. Which design was the strongest? (a) design A (b) design B (c) design C
28. 28.🧪 A paper bridge was tested three times. It held 290 g, 190 g and 120 g. What is the mean (average) load it held, in grams?
29. 29.🔢 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) build it with straws
30. 30.True or false: to change lots at once is poor testing. (a) False (b) True
31. 31.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 290 g. Which design was the strongest? (a) design C (b) design B (c) design A
33. 33.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) record every result (d) change only one thing
34. 34.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
35. 35.True or false: to measure the same way is poor testing. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) guess, do not measure (d) repeat each test
37. 37.🧪 A paper bridge was tested three times. It held 360 g, 200 g and 280 g. What is the mean (average) load it held, in grams?
38. 38.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
39. 39.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
40. 40.True or false: to change only one thing is poor testing. (a) True (b) False

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