Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 432 · 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 measure the same way is poor testing. (a) True (b) False
2. 2.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) sketch three ideas (b) strengthen the weak part
3. 3.🔍 Which is the odd one out? (a) change lots at once (b) skip writing results (c) test it only once (d) change only one thing
4. 4.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
5. 5.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) strengthen the weak part (b) choose and draw one
6. 6.True or false: to skip writing results is good testing. (a) True (b) False
7. 7.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
8. 8.True or false: to test it only once is good testing. (a) False (b) True
9. 9.True or false: to hide a failed test is good testing. (a) False (b) True
10. 10.🔢 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
11. 11.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
12. 12.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 400 g and design C held 350 g. Which design was the weakest? (a) design C (b) design A (c) design B
14. 14.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the weakest? (a) design A (b) design B (c) design C
16. 16.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 320 g and design C held 270 g. Which design was the strongest? (a) design A (b) design C (c) design B
18. 18.True or false: to repeat each test is good testing. (a) False (b) True
19. 19.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 330 g. Which design was the strongest? (a) design A (b) design C (c) design B
21. 21.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to avoid testing (d) to test ideas cheaply
22. 22.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
23. 23.🔍 Which is the odd one out? (a) measure the same way (b) test it only once (c) use the same load (d) change only one thing
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 340 g. Which design was the weakest? (a) design B (b) design C (c) design A
25. 25.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
26. 26.True or false: to change only one thing is good testing. (a) False (b) True
27. 27.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
28. 28.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) test it only once (d) use a new load each time
29. 29.🧪 A paper bridge was tested three times. It held 270 g, 240 g and 240 g. What is the mean (average) load it held, in grams?
30. 30.🧪 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 B (b) design A (c) design C
31. 31.True or false: to measure the same way is good testing. (a) False (b) True
32. 32.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
33. 33.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) load it with coins (b) choose and draw one
34. 34.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) measure the same way (d) use a new load each time
35. 35.🧪 A paper bridge was tested three times. It held 410 g, 350 g and 290 g. What is the mean (average) load it held, in grams?
36. 36.🧪 A paper bridge was tested three times. It held 330 g, 170 g and 220 g. What is the mean (average) load it held, in grams?
37. 37.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) load it with coins (c) strengthen the weak part (d) read the challenge rules
38. 38.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
39. 39.🧪 In a fair test, how many things do you change at a time? (a) one (b) two (c) none (d) all of them
40. 40.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) to get reliable results (d) it looks busy

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