Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 20 · 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 comes first: “build it with straws” or “read the challenge rules”? (a) build it with straws (b) read the challenge rules
2. 2.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
3. 3.True or false: to repeat each test is poor testing. (a) True (b) False
4. 4.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
5. 5.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
6. 6.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to test ideas cheaply (d) to decorate a room
7. 7.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
8. 8.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
9. 9.🔢 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
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 160 g. Which design was the strongest? (a) design B (b) design C (c) design A
11. 11.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
12. 12.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) sketch three ideas (c) build it with straws (d) choose and draw one
13. 13.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
14. 14.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
15. 15.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) guess, do not measure (d) use a new load each time
16. 16.🔍 Which is the odd one out? (a) change only one thing (b) hide a failed test (c) measure the same way (d) use the same load
17. 17.🧪 A paper bridge was tested three times. It held 320 g, 190 g and 270 g. What is the mean (average) load it held, in grams?
18. 18.🧪 A paper bridge was tested three times. It held 230 g, 150 g and 220 g. What is the mean (average) load it held, in grams?
19. 19.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
20. 20.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) skip writing results (d) repeat each test
21. 21.🧪 A paper bridge was tested three times. It held 170 g, 100 g and 210 g. What is the mean (average) load it held, in grams?
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.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 340 g and design C held 290 g. Which design was the strongest? (a) design B (b) design A (c) design C
24. 24.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
25. 25.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
26. 26.True or false: to repeat each test is good testing. (a) True (b) False
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 370 g and design C held 270 g. Which design was the strongest? (a) design B (b) design A (c) design C
28. 28.🧪 A paper bridge was tested three times. It held 370 g, 220 g and 370 g. What is the mean (average) load it held, in grams?
29. 29.🔍 Which is the odd one out? (a) repeat each test (b) guess, do not measure (c) test it only once (d) hide a failed test
30. 30.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) to use more paper (d) it looks busy
31. 31.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) build it with straws (c) choose and draw one (d) load it with coins
32. 32.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
33. 33.True or false: to hide a failed test is poor testing. (a) True (b) False
34. 34.True or false: to change only one thing is poor testing. (a) True (b) False
35. 35.🔢 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
36. 36.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the weakest? (a) design A (b) design B (c) design C
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the weakest? (a) design B (b) design C (c) design A
39. 39.🧪 A paper bridge was tested three times. It held 180 g, 70 g and 200 g. What is the mean (average) load it held, in grams?
40. 40.🔢 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

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