Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 728 · 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.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
2. 2.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) use a new load each time (d) change only one thing
3. 3.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) build it with straws (b) strengthen the weak part
4. 4.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
5. 5.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) a broken part (d) the final product
6. 6.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
7. 7.True or false: to change lots at once is good testing. (a) True (b) False
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 280 g. Which design was the weakest? (a) design C (b) design A (c) design B
9. 9.True or false: to repeat each test is good testing. (a) False (b) True
10. 10.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
11. 11.🧪 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 B (b) design A (c) design C
12. 12.True or false: to repeat each test is poor testing. (a) False (b) True
13. 13.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 360 g. Which design was the strongest? (a) design A (b) design B (c) design C
15. 15.🧪 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
16. 16.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) to get reliable results (d) it looks busy
17. 17.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
18. 18.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) use the same load (d) use a new load each time
19. 19.🧪 A paper bridge was tested three times. It held 280 g, 200 g and 180 g. What is the mean (average) load it held, in grams?
20. 20.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) build it with straws (c) read the challenge rules (d) sketch three ideas
21. 21.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) sketch three ideas
22. 22.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
23. 23.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules
24. 24.🧪 A paper bridge was tested three times. It held 180 g, 120 g and 240 g. What is the mean (average) load it held, in grams?
25. 25.True or false: to use the same load is poor testing. (a) True (b) False
26. 26.True or false: to record every result is good testing. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) change only one thing (d) hide a failed test
28. 28.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) choose and draw one (b) build it with straws
29. 29.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
30. 30.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
31. 31.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) hide a failed test (d) use a new load each time
32. 32.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 150 g and design C held 100 g. Which design was the weakest? (a) design B (b) design C (c) design A
34. 34.True or false: to hide a failed test is good testing. (a) True (b) False
35. 35.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
36. 36.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
37. 37.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) test it only once (d) record every result
38. 38.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
39. 39.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
40. 40.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing

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