Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 857 · 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.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) use a new load each time (d) hide a failed test
2. 2.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) sketch three ideas (c) load it with coins (d) strengthen the weak part
3. 3.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the strongest? (a) design A (b) design C (c) design B
5. 5.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) read the challenge rules (c) build it with straws (d) strengthen the weak part
6. 6.True or false: to guess, do not measure is poor testing. (a) True (b) False
7. 7.🧪 What is a prototype? (a) an early test model (b) the final product (c) a sales poster (d) a broken part
8. 8.True or false: to measure the same way is good testing. (a) True (b) False
9. 9.🧪 In a fair test, how many things do you change at a time? (a) two (b) one (c) none (d) all of them
10. 10.True or false: to use the same load is good testing. (a) False (b) True
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 230 g. Which design was the strongest? (a) design B (b) design A (c) design C
12. 12.True or false: to repeat each test is poor testing. (a) True (b) False
13. 13.True or false: to use the same load is poor testing. (a) False (b) True
14. 14.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
15. 15.🧪 A paper bridge was tested three times. It held 330 g, 270 g and 300 g. What is the mean (average) load it held, in grams?
16. 16.🧪 A paper bridge was tested three times. It held 420 g, 270 g and 360 g. What is the mean (average) load it held, in grams?
17. 17.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) change lots at once (d) use the same load
18. 18.🧪 A paper bridge was tested three times. It held 230 g, 180 g and 130 g. What is the mean (average) load it held, in grams?
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 160 g and design C held 210 g. Which design was the strongest? (a) design C (b) design A (c) design B
20. 20.🧪 A paper bridge was tested three times. It held 350 g, 230 g and 410 g. What is the mean (average) load it held, in grams?
21. 21.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
22. 22.🧪 A paper bridge was tested three times. It held 190 g, 90 g and 230 g. What is the mean (average) load it held, in grams?
23. 23.🔍 Which is the odd one out? (a) use the same load (b) change lots at once (c) record every result (d) repeat each test
24. 24.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
25. 25.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
26. 26.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
27. 27.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
28. 28.True or false: to use a new load each time is good testing. (a) True (b) False
29. 29.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to decorate a room (d) to test ideas cheaply
30. 30.🧪 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 C (b) design B (c) design A
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 300 g. Which design was the strongest? (a) design B (b) design C (c) design A
32. 32.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) build it with straws (c) strengthen the weak part (d) choose and draw one
33. 33.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) choose and draw one (c) load it with coins (d) read the challenge rules
34. 34.🧪 A paper bridge was tested three times. It held 310 g, 230 g and 210 g. What is the mean (average) load it held, in grams?
35. 35.True or false: to repeat each test is good testing. (a) True (b) False
36. 36.🧪 A paper bridge was tested three times. It held 220 g, 110 g and 210 g. What is the mean (average) load it held, in grams?
37. 37.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) test it only once (d) measure the same way
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 100 g. Which design was the weakest? (a) design A (b) design C (c) design B
39. 39.True or false: to hide a failed test is good testing. (a) False (b) True
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 340 g. Which design was the strongest? (a) design A (b) design B (c) design C

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