Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 315 · 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) skip writing results (b) hide a failed test (c) test it only once (d) change only one thing
2. 2.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) build it with straws (c) strengthen the weak part (d) choose and draw one
3. 3.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) repeat each test (d) hide a failed test
4. 4.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 400 g. Which design was the weakest? (a) design B (b) design C (c) design A
6. 6.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) to get reliable results (d) the first is wrong
7. 7.True or false: to measure the same way is poor testing. (a) True (b) False
8. 8.True or false: to record every result is good testing. (a) True (b) False
9. 9.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
10. 10.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
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 change lots at once? (a) poor testing (b) good testing
13. 13.🔍 Which is the odd one out? (a) record every result (b) guess, do not measure (c) change only one thing (d) measure the same way
14. 14.🧪 A paper bridge was tested three times. It held 350 g, 290 g and 260 g. What is the mean (average) load it held, in grams?
15. 15.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) measure the same way (d) skip writing results
16. 16.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
17. 17.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 320 g. Which design was the weakest? (a) design B (b) design C (c) design A
19. 19.🧪 A paper bridge was tested three times. It held 430 g, 240 g and 350 g. What is the mean (average) load it held, in grams?
20. 20.🧪 A paper bridge was tested three times. It held 220 g, 90 g and 260 g. What is the mean (average) load it held, in grams?
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 100 g and design C held 200 g. Which design was the weakest? (a) design A (b) design C (c) design B
22. 22.True or false: to change only one thing is good testing. (a) False (b) True
23. 23.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 380 g and design C held 330 g. Which design was the weakest? (a) design C (b) design B (c) design A
25. 25.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
26. 26.True or false: to change lots at once is good testing. (a) False (b) True
27. 27.🧪 A paper bridge was tested three times. It held 240 g, 130 g and 80 g. What is the mean (average) load it held, in grams?
28. 28.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) change only one thing (d) measure the same way
29. 29.🧪 A paper bridge was tested three times. It held 190 g, 140 g and 180 g. What is the mean (average) load it held, in grams?
30. 30.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 350 g and design C held 300 g. Which design was the weakest? (a) design C (b) design A (c) design B
32. 32.🔢 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
33. 33.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) sketch three ideas (b) read the challenge rules
34. 34.🧪 A paper bridge was tested three times. It held 290 g, 190 g and 90 g. What is the mean (average) load it held, in grams?
35. 35.🔍 Which is the odd one out? (a) use the same load (b) change lots at once (c) record every result (d) change only one thing
36. 36.🧪 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 strongest? (a) design A (b) design B (c) design C
37. 37.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
38. 38.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) sketch three ideas (c) choose and draw one (d) load it with coins
39. 39.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
40. 40.🧪 A paper bridge was tested three times. It held 340 g, 310 g and 370 g. What is the mean (average) load it held, in grams?

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