Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 184 · 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.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) one (d) none
2. 2.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
3. 3.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) hide a failed test (d) use a new load each time
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 180 g and design C held 130 g. Which design was the weakest? (a) design B (b) design A (c) design C
5. 5.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
6. 6.True or false: to measure the same way is poor testing. (a) False (b) True
7. 7.🧪 What is a prototype? (a) the final product (b) a broken part (c) a sales poster (d) an early test model
8. 8.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
9. 9.🧪 A paper bridge was tested three times. It held 420 g, 240 g and 330 g. What is the mean (average) load it held, in grams?
10. 10.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) sketch three ideas (c) strengthen the weak part (d) choose and draw one
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 290 g. Which design was the weakest? (a) design C (b) design B (c) design A
12. 12.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) use the same load (d) change only one thing
13. 13.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 250 g and design C held 200 g. Which design was the strongest? (a) design A (b) design B (c) design C
15. 15.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
16. 16.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?
17. 17.🧪 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 strongest? (a) design B (b) design A (c) design C
18. 18.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) choose and draw one (b) strengthen the weak part
19. 19.🔍 Which is the odd one out? (a) hide a failed test (b) measure the same way (c) skip writing results (d) change lots at once
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 250 g. Which design was the weakest? (a) design C (b) design B (c) design A
21. 21.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
22. 22.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) change only one thing (d) hide a failed test
23. 23.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) sketch three ideas (b) choose and draw one
24. 24.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
25. 25.True or false: to use the same load is poor testing. (a) True (b) False
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 300 g and design C held 350 g. Which design was the weakest? (a) design C (b) design A (c) design B
27. 27.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
28. 28.🧪 A paper bridge was tested three times. It held 410 g, 210 g and 310 g. What is the mean (average) load it held, in grams?
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 200 g. Which design was the weakest? (a) design B (b) design A (c) design C
30. 30.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
31. 31.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
32. 32.🔍 Which is the odd one out? (a) use a new load each time (b) record every result (c) use the same load (d) change only one thing
33. 33.True or false: to measure the same way is good testing. (a) False (b) True
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 190 g and design C held 240 g. Which design was the strongest? (a) design B (b) design C (c) design A
35. 35.True or false: to skip writing results is poor testing. (a) True (b) False
36. 36.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) strengthen the weak part (b) build it with straws (c) load it with coins (d) read the challenge rules
37. 37.True or false: to record every result is poor testing. (a) False (b) True
38. 38.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
39. 39.True or false: to hide a failed test is good testing. (a) True (b) False
40. 40.True or false: to guess, do not measure is good testing. (a) False (b) True

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