Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 682 · 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 repeat each test? (a) poor testing (b) good testing
2. 2.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) one (d) all of them
3. 3.🔍 Which is the odd one out? (a) change lots at once (b) test it only once (c) record every result (d) hide a failed test
4. 4.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
5. 5.🧪 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 C (b) design B (c) design A
6. 6.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) measure the same way (d) use a new load each time
7. 7.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design C (b) design B (c) design A
9. 9.🧪 A paper bridge was tested three times. It held 280 g, 250 g and 250 g. What is the mean (average) load it held, in grams?
10. 10.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) choose and draw one (d) build it with straws
11. 11.🧪 A paper bridge was tested three times. It held 250 g, 160 g and 160 g. What is the mean (average) load it held, in grams?
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 150 g. Which design was the strongest? (a) design B (b) design A (c) design C
13. 13.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
14. 14.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) repeat each test (d) hide a failed test
15. 15.True or false: to use the same load is poor testing. (a) False (b) True
16. 16.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
17. 17.🧪 A paper bridge was tested three times. It held 180 g, 100 g and 170 g. What is the mean (average) load it held, in grams?
18. 18.True or false: to measure the same way is poor testing. (a) True (b) False
19. 19.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
20. 20.🧪 A paper bridge was tested three times. It held 330 g, 310 g and 320 g. What is the mean (average) load it held, in grams?
21. 21.True or false: to hide a failed test is poor testing. (a) False (b) True
22. 22.🧪 A paper bridge was tested three times. It held 310 g, 220 g and 400 g. What is the mean (average) load it held, in grams?
23. 23.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) choose and draw one (b) sketch three ideas
24. 24.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
25. 25.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
26. 26.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) build it with straws (b) load it with coins
27. 27.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
28. 28.🔍 Which is the odd one out? (a) guess, do not measure (b) hide a failed test (c) skip writing results (d) repeat each test
29. 29.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
30. 30.True or false: to change lots at once is poor testing. (a) False (b) True
31. 31.🧪 A paper bridge was tested three times. It held 340 g, 320 g and 300 g. What is the mean (average) load it held, in grams?
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the weakest? (a) design C (b) design A (c) design B
33. 33.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) change only one thing (d) skip writing results
34. 34.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to decorate a room (d) to sell them at once
35. 35.True or false: to guess, do not measure is poor testing. (a) True (b) False
36. 36.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
37. 37.True or false: to use a new load each time is poor testing. (a) False (b) True
38. 38.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
39. 39.🧪 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 C (c) design A
40. 40.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing

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