Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 816 · 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.True or false: to measure the same way is good testing. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) change lots at once (b) skip writing results (c) use a new load each time (d) use the same load
3. 3.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to test ideas cheaply (c) to decorate a room (d) to sell them at once
4. 4.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
5. 5.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
6. 6.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
7. 7.🧪 A paper bridge was tested three times. It held 250 g, 160 g and 130 g. What is the mean (average) load it held, in grams?
8. 8.True or false: to test it only once is good testing. (a) False (b) True
9. 9.True or false: to repeat each test is poor testing. (a) False (b) True
10. 10.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) it looks busy (d) the first is wrong
11. 11.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
12. 12.True or false: to skip writing results is poor testing. (a) True (b) False
13. 13.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) load it with coins (b) build it with straws
14. 14.🔍 Which is the odd one out? (a) use a new load each time (b) skip writing results (c) repeat each test (d) change lots at once
15. 15.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) record every result (d) hide a failed test
16. 16.🧪 A paper bridge was tested three times. It held 430 g, 240 g and 320 g. What is the mean (average) load it held, in grams?
17. 17.🔍 Which is the odd one out? (a) change only one thing (b) test it only once (c) hide a failed test (d) guess, do not measure
18. 18.🧪 A paper bridge was tested three times. It held 230 g, 100 g and 180 g. What is the mean (average) load it held, in grams?
19. 19.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
20. 20.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
21. 21.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
22. 22.🧪 A paper bridge was tested three times. It held 210 g, 90 g and 210 g. What is the mean (average) load it held, in grams?
23. 23.🧪 A paper bridge was tested three times. It held 280 g, 140 g and 120 g. What is the mean (average) load it held, in grams?
24. 24.🧪 A paper bridge was tested three times. It held 220 g, 120 g and 170 g. What is the mean (average) load it held, in grams?
25. 25.🧪 A paper bridge was tested three times. It held 290 g, 200 g and 290 g. What is the mean (average) load it held, in grams?
26. 26.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) read the challenge rules (c) strengthen the weak part (d) build it with straws
27. 27.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 200 g and design C held 150 g. Which design was the strongest? (a) design C (b) design A (c) design B
29. 29.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
30. 30.🔍 Which is the odd one out? (a) hide a failed test (b) guess, do not measure (c) use a new load each time (d) measure the same way
31. 31.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) choose and draw one (b) load it with coins
32. 32.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
33. 33.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
34. 34.🧪 A paper bridge was tested three times. It held 240 g, 180 g and 300 g. What is the mean (average) load it held, in grams?
35. 35.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
36. 36.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
37. 37.True or false: to test it only once is poor testing. (a) False (b) True
38. 38.True or false: to use a new load each time is poor testing. (a) True (b) False
39. 39.🧪 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 A (b) design C (c) design B
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 210 g and design C held 310 g. Which design was the strongest? (a) design B (b) design A (c) design C

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