Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 628 · 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.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
2. 2.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) build it with straws (b) choose and draw one
3. 3.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) load it with coins (c) strengthen the weak part (d) read the challenge rules
4. 4.True or false: to repeat each test is poor testing. (a) False (b) True
5. 5.🧪 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
6. 6.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
7. 7.🧪 A paper bridge was tested three times. It held 240 g, 160 g and 320 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to decorate a room (d) to test ideas cheaply
9. 9.🧪 A paper bridge was tested three times. It held 180 g, 100 g and 260 g. What is the mean (average) load it held, in grams?
10. 10.🔍 Which is the odd one out? (a) change only one thing (b) change lots at once (c) record every result (d) measure the same way
11. 11.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) build it with straws (c) load it with coins (d) read the challenge rules
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 180 g. Which design was the strongest? (a) design A (b) design C (c) design B
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 390 g. Which design was the weakest? (a) design A (b) design B (c) design C
14. 14.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to get reliable results (d) to use more paper
15. 15.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
16. 16.True or false: to guess, do not measure is poor testing. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) measure the same way (d) skip writing results
18. 18.True or false: to use the same load is poor testing. (a) False (b) True
19. 19.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
20. 20.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
21. 21.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 140 g and design C held 240 g. Which design was the strongest? (a) design A (b) design B (c) design C
23. 23.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
24. 24.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 380 g, design B held 280 g and design C held 330 g. Which design was the weakest? (a) design B (b) design A (c) design C
26. 26.🧪 A paper bridge was tested three times. It held 260 g, 140 g and 80 g. What is the mean (average) load it held, in grams?
27. 27.🧪 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 C (b) design B (c) design A
28. 28.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
29. 29.🧪 A paper bridge was tested three times. It held 370 g, 310 g and 280 g. What is the mean (average) load it held, in grams?
30. 30.True or false: to change lots at once is poor testing. (a) True (b) False
31. 31.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
32. 32.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
33. 33.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
34. 34.True or false: to test it only once is good testing. (a) False (b) True
35. 35.True or false: to use a new load each time is poor testing. (a) True (b) False
36. 36.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) choose and draw one
37. 37.🧪 A paper bridge was tested three times. It held 290 g, 220 g and 150 g. What is the mean (average) load it held, in grams?
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 380 g. Which design was the strongest? (a) design B (b) design A (c) design C
39. 39.🧪 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 C (b) design A (c) design B
40. 40.🧪 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 strongest? (a) design C (b) design A (c) design B

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