Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 162 · 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.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
2. 2.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
3. 3.True or false: to measure the same way is good testing. (a) True (b) False
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 250 g. Which design was the weakest? (a) design A (b) design B (c) design C
5. 5.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 140 g. Which design was the strongest? (a) design C (b) design A (c) design B
7. 7.True or false: to hide a failed test is poor testing. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) use a new load each time (b) repeat each test (c) use the same load (d) change only one thing
9. 9.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) build it with straws (b) load it with coins
10. 10.True or false: to repeat each test is poor testing. (a) True (b) False
11. 11.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
12. 12.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) load it with coins (c) build it with straws (d) read the challenge rules
13. 13.True or false: to skip writing results is poor testing. (a) False (b) True
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the weakest? (a) design C (b) design A (c) design B
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design A (b) design B (c) design C
16. 16.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) use a new load each time (d) measure the same way
17. 17.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
18. 18.True or false: to change only one thing is good testing. (a) True (b) False
19. 19.🔢 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) read the challenge rules (d) strengthen the weak part
20. 20.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) record every result (d) repeat each test
21. 21.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 370 g. Which design was the weakest? (a) design C (b) design B (c) design A
23. 23.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) it looks busy (d) to get reliable results
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design B (b) design C (c) design A
25. 25.🔍 Which is the odd one out? (a) repeat each test (b) skip writing results (c) record every result (d) use the same load
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 230 g. Which design was the weakest? (a) design B (b) design C (c) design A
27. 27.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) load it with coins (c) sketch three ideas (d) read the challenge rules
28. 28.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
29. 29.🔍 Which is the odd one out? (a) change only one thing (b) test it only once (c) measure the same way (d) record every result
30. 30.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
31. 31.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
32. 32.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) skip writing results (d) change only one thing
33. 33.🔍 Which is the odd one out? (a) record every result (b) guess, do not measure (c) use a new load each time (d) hide a failed test
34. 34.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) read the challenge rules (c) build it with straws (d) choose and draw one
35. 35.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to decorate a room (d) to sell them at once
36. 36.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
37. 37.🔍 Which is the odd one out? (a) hide a failed test (b) skip writing results (c) test it only once (d) repeat each test
38. 38.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 180 g and design C held 280 g. Which design was the strongest? (a) design B (b) design C (c) design A
40. 40.🧪 A paper bridge was tested three times. It held 300 g, 290 g and 280 g. What is the mean (average) load it held, in grams?

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