Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 368 · 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 use the same load? (a) poor testing (b) good testing
2. 2.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to sell them at once (d) to avoid testing
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 120 g. Which design was the strongest? (a) design B (b) design A (c) design C
4. 4.🧪 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 C (b) design A (c) design B
5. 5.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) skip writing results (d) use a new load each time
6. 6.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) read the challenge rules (c) strengthen the weak part (d) load it with coins
7. 7.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) the first is wrong (d) to use more paper
8. 8.True or false: to hide a failed test is good testing. (a) False (b) True
9. 9.True or false: to measure the same way is good testing. (a) True (b) False
10. 10.🧪 A paper bridge was tested three times. It held 400 g, 350 g and 300 g. What is the mean (average) load it held, in grams?
11. 11.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) load it with coins (b) build it with straws
12. 12.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
13. 13.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) skip writing results (d) test it only once
14. 14.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) guess, do not measure (d) measure the same way
15. 15.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
16. 16.🧪 What is a prototype? (a) the final product (b) a broken part (c) a sales poster (d) an early test model
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 140 g. Which design was the strongest? (a) design C (b) design B (c) design A
18. 18.🧪 A paper bridge was tested three times. It held 250 g, 70 g and 130 g. What is the mean (average) load it held, in grams?
19. 19.🧪 A paper bridge was tested three times. It held 380 g, 290 g and 320 g. What is the mean (average) load it held, in grams?
20. 20.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
21. 21.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
22. 22.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
23. 23.🧪 A paper bridge was tested three times. It held 270 g, 250 g and 260 g. What is the mean (average) load it held, in grams?
24. 24.🧪 A paper bridge was tested three times. It held 370 g, 290 g and 360 g. What is the mean (average) load it held, in grams?
25. 25.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) choose and draw one (c) read the challenge rules (d) load it with coins
26. 26.🧪 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 B (b) design A (c) design C
27. 27.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
28. 28.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
29. 29.🔍 Which is the odd one out? (a) repeat each test (b) skip writing results (c) use a new load each time (d) change lots at once
30. 30.🧪 A paper bridge was tested three times. It held 440 g, 350 g and 260 g. What is the mean (average) load it held, in grams?
31. 31.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) choose and draw one (c) build it with straws (d) read the challenge rules
32. 32.🔍 Which is the odd one out? (a) test it only once (b) measure the same way (c) record every result (d) use the same load
33. 33.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
34. 34.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
35. 35.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
36. 36.True or false: to change only one thing is poor testing. (a) False (b) True
37. 37.True or false: to record every result is poor testing. (a) False (b) True
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 weakest? (a) design C (b) design B (c) design A
39. 39.🔢 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
40. 40.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing

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