Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 846 · 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 a new load each time? (a) good testing (b) poor testing
2. 2.True or false: to use a new load each time is poor testing. (a) True (b) False
3. 3.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
4. 4.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) skip writing results (d) measure the same way
5. 5.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) use the same load (d) hide a failed test
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 370 g and design C held 320 g. Which design was the weakest? (a) design C (b) design A (c) design B
7. 7.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
8. 8.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) choose and draw one (c) sketch three ideas (d) load it with coins
9. 9.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
10. 10.True or false: to use the same load is poor testing. (a) True (b) False
11. 11.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to decorate a room (d) to test ideas cheaply
12. 12.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
13. 13.True or false: to record every result is good testing. (a) True (b) False
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 260 g. Which design was the strongest? (a) design B (b) design A (c) design C
15. 15.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) test it only once (d) measure the same way
16. 16.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) load it with coins (c) choose and draw one (d) strengthen the weak part
17. 17.🧪 A paper bridge was tested three times. It held 350 g, 280 g and 240 g. What is the mean (average) load it held, in grams?
18. 18.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 350 g and design C held 300 g. Which design was the strongest? (a) design B (b) design A (c) design C
20. 20.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
21. 21.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) read the challenge rules (c) choose and draw one (d) build it with straws
22. 22.🔢 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
23. 23.🧪 A paper bridge was tested three times. It held 240 g, 130 g and 290 g. What is the mean (average) load it held, in grams?
24. 24.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) to get reliable results (d) it looks busy
25. 25.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) load it with coins (b) choose and draw one
26. 26.🧪 A paper bridge was tested three times. It held 370 g, 240 g and 320 g. What is the mean (average) load it held, in grams?
27. 27.True or false: to repeat each test is poor testing. (a) True (b) False
28. 28.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
29. 29.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) record every result (d) change only one thing
30. 30.True or false: to hide a failed test is good testing. (a) False (b) True
31. 31.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
32. 32.True or false: to use a new load each time is good testing. (a) True (b) False
33. 33.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
34. 34.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
35. 35.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) choose and draw one (c) read the challenge rules (d) load it with coins
36. 36.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
37. 37.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
38. 38.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) repeat each test (d) guess, do not measure
39. 39.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
40. 40.🔍 Which is the odd one out? (a) hide a failed test (b) skip writing results (c) use the same load (d) use a new load each time

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