Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 678 · 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) poor testing (b) good testing
2. 2.🧪 A paper bridge was tested three times. It held 390 g, 270 g and 270 g. What is the mean (average) load it held, in grams?
3. 3.True or false: to guess, do not measure is poor testing. (a) True (b) False
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 170 g. Which design was the strongest? (a) design A (b) design C (c) design B
5. 5.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) measure the same way (d) test it only once
6. 6.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) sketch three ideas (c) strengthen the weak part (d) read the challenge rules
7. 7.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 380 g. Which design was the strongest? (a) design A (b) design C (c) design B
9. 9.True or false: to use a new load each time is good testing. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) use the same load (d) guess, do not measure
11. 11.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
12. 12.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
13. 13.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
14. 14.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) one (d) all of them
15. 15.🔍 Which is the odd one out? (a) use a new load each time (b) hide a failed test (c) test it only once (d) use the same load
16. 16.🧪 A paper bridge was tested three times. It held 220 g, 130 g and 220 g. What is the mean (average) load it held, in grams?
17. 17.🧪 A paper bridge was tested three times. It held 260 g, 220 g and 180 g. What is the mean (average) load it held, in grams?
18. 18.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) load it with coins (c) strengthen the weak part (d) choose and draw one
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 380 g, design B held 330 g and design C held 280 g. Which design was the weakest? (a) design A (b) design B (c) design C
20. 20.True or false: to hide a failed test is poor testing. (a) True (b) False
21. 21.True or false: to use the same load is good testing. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) test it only once (d) change only one thing
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 340 g. Which design was the strongest? (a) design A (b) design C (c) design B
24. 24.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) it looks busy (d) to use more paper
25. 25.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) sketch three ideas (b) strengthen the weak part
26. 26.🧪 A paper bridge was tested three times. It held 270 g, 220 g and 320 g. What is the mean (average) load it held, in grams?
27. 27.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
28. 28.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
29. 29.🧪 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
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 330 g and design C held 280 g. Which design was the weakest? (a) design C (b) design B (c) design A
31. 31.🧪 A paper bridge was tested three times. It held 310 g, 180 g and 200 g. What is the mean (average) load it held, in grams?
32. 32.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
33. 33.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
34. 34.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
35. 35.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) load it with coins (b) choose and draw one
36. 36.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) hide a failed test (d) record every result
37. 37.🧪 A paper bridge was tested three times. It held 230 g, 140 g and 140 g. What is the mean (average) load it held, in grams?
38. 38.🔍 Which is the odd one out? (a) use a new load each time (b) repeat each test (c) change only one thing (d) record every result
39. 39.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) sketch three ideas (b) load it with coins
40. 40.🧪 A paper bridge was tested three times. It held 160 g, 70 g and 250 g. What is the mean (average) load it held, in grams?

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