Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 926 · 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.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) strengthen the weak part (c) load it with coins (d) read the challenge rules
2. 2.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
3. 3.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) strengthen the weak part (c) load it with coins (d) choose and draw one
4. 4.🔍 Which is the odd one out? (a) change lots at once (b) use the same load (c) record every result (d) change only one thing
5. 5.🧪 A paper bridge was tested three times. It held 370 g, 270 g and 290 g. What is the mean (average) load it held, in grams?
6. 6.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 170 g. Which design was the strongest? (a) design C (b) design A (c) design B
8. 8.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) strengthen the weak part (b) read the challenge rules
9. 9.True or false: to change lots at once is poor testing. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) use a new load each time (d) repeat each test
11. 11.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
12. 12.True or false: to guess, do not measure is poor testing. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) record every result (b) test it only once (c) change only one thing (d) repeat each test
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 390 g and design C held 340 g. Which design was the strongest? (a) design C (b) design A (c) design B
15. 15.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
16. 16.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
17. 17.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to test ideas cheaply (d) to avoid testing
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the weakest? (a) design A (b) design B (c) design C
19. 19.🧪 In a fair test, how many things do you change at a time? (a) one (b) two (c) all of them (d) none
20. 20.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
21. 21.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
22. 22.True or false: to guess, do not measure is good testing. (a) True (b) False
23. 23.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
24. 24.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) sketch three ideas (d) build it with straws
25. 25.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
26. 26.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design C (b) design B (c) design A
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 110 g and design C held 160 g. Which design was the strongest? (a) design B (b) design A (c) design C
29. 29.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) sketch three ideas (c) strengthen the weak part (d) load it with coins
30. 30.🧪 A paper bridge was tested three times. It held 330 g, 160 g and 290 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to hide a failed test is good testing. (a) False (b) True
32. 32.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
33. 33.🧪 A paper bridge was tested three times. It held 340 g, 150 g and 230 g. What is the mean (average) load it held, in grams?
34. 34.🧪 A paper bridge was tested three times. It held 320 g, 230 g and 170 g. What is the mean (average) load it held, in grams?
35. 35.🧪 A paper bridge was tested three times. It held 230 g, 90 g and 190 g. What is the mean (average) load it held, in grams?
36. 36.🔍 Which is the odd one out? (a) skip writing results (b) use the same load (c) record every result (d) measure the same way
37. 37.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
38. 38.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
39. 39.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) build it with straws (b) read the challenge rules
40. 40.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) record every result (d) measure the same way

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