Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 57 · 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.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) the final product (d) a broken part
2. 2.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) choose and draw one (c) read the challenge rules (d) build it with straws
3. 3.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) measure the same way (d) hide a failed test
4. 4.🔢 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
5. 5.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the strongest? (a) design B (b) design C (c) design A
7. 7.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) choose and draw one (c) read the challenge rules (d) load it with coins
8. 8.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) the first is wrong (d) it looks busy
9. 9.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
10. 10.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
11. 11.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 250 g. Which design was the weakest? (a) design A (b) design C (c) design B
13. 13.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
14. 14.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) hide a failed test (d) change lots at once
15. 15.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
16. 16.True or false: to test it only once is good testing. (a) True (b) False
17. 17.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
18. 18.🧪 A paper bridge was tested three times. It held 220 g, 110 g and 270 g. What is the mean (average) load it held, in grams?
19. 19.🔍 Which is the odd one out? (a) use the same load (b) test it only once (c) repeat each test (d) record every result
20. 20.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
21. 21.🧪 A paper bridge was tested three times. It held 240 g, 110 g and 280 g. What is the mean (average) load it held, in grams?
22. 22.🧪 A paper bridge was tested three times. It held 270 g, 160 g and 290 g. What is the mean (average) load it held, in grams?
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 360 g. Which design was the strongest? (a) design C (b) design A (c) design B
24. 24.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to decorate a room (d) to test ideas cheaply
25. 25.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) use a new load each time (d) repeat each test
26. 26.🧪 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 strongest? (a) design B (b) design A (c) design C
27. 27.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
28. 28.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
29. 29.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
30. 30.🧪 A paper bridge was tested three times. It held 230 g, 120 g and 280 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to record every result is poor testing. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) change only one thing (b) change lots at once (c) use the same load (d) record every result
33. 33.True or false: to skip writing results is good testing. (a) False (b) True
34. 34.🧪 A paper bridge was tested three times. It held 370 g, 250 g and 280 g. What is the mean (average) load it held, in grams?
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 340 g and design C held 290 g. Which design was the weakest? (a) design A (b) design B (c) design C
36. 36.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
37. 37.🧪 A paper bridge was tested three times. It held 420 g, 330 g and 240 g. What is the mean (average) load it held, in grams?
38. 38.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
39. 39.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) sketch three ideas (b) read the challenge rules
40. 40.True or false: to change lots at once is good testing. (a) True (b) False

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