Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 718 · 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.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) sketch three ideas (c) load it with coins (d) strengthen the weak part
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the weakest? (a) design B (b) design A (c) design C
3. 3.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
4. 4.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
5. 5.True or false: to measure the same way is poor testing. (a) False (b) True
6. 6.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) build it with straws (b) read the challenge rules
7. 7.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
8. 8.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
9. 9.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) choose and draw one (c) load it with coins (d) build it with straws
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design B (b) design A (c) design C
11. 11.True or false: to change only one thing is poor testing. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) hide a failed test (d) change lots at once
13. 13.True or false: to test it only once is poor testing. (a) False (b) True
14. 14.True or false: to guess, do not measure is poor testing. (a) True (b) False
15. 15.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
16. 16.🔍 Which is the odd one out? (a) use a new load each time (b) change lots at once (c) measure the same way (d) skip writing results
17. 17.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
18. 18.True or false: to use the same load is poor testing. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) skip writing results (d) record every result
20. 20.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) test it only once (d) use the same load
21. 21.True or false: to hide a failed test is poor testing. (a) True (b) False
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 370 g. Which design was the weakest? (a) design C (b) design B (c) design A
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 290 g. Which design was the strongest? (a) design B (b) design A (c) design C
24. 24.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) all of them (d) two
25. 25.True or false: to use the same load is good testing. (a) True (b) False
26. 26.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
27. 27.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
28. 28.🧪 A paper bridge was tested three times. It held 200 g, 130 g and 180 g. What is the mean (average) load it held, in grams?
29. 29.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
30. 30.🔍 Which is the odd one out? (a) use a new load each time (b) skip writing results (c) change only one thing (d) test it only once
31. 31.🧪 A paper bridge was tested three times. It held 230 g, 170 g and 200 g. What is the mean (average) load it held, in grams?
32. 32.True or false: to guess, do not measure is good testing. (a) True (b) False
33. 33.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas
34. 34.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
35. 35.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) sketch three ideas (b) build it with straws
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design B (b) design A (c) design C
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 270 g. Which design was the weakest? (a) design A (b) design C (c) design B
38. 38.True or false: to repeat each test is poor testing. (a) False (b) True
39. 39.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
40. 40.🧪 A paper bridge was tested three times. It held 320 g, 200 g and 290 g. What is the mean (average) load it held, in grams?

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