Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 43 · 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.True or false: to measure the same way is good testing. (a) False (b) True
2. 2.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
3. 3.🔍 Which is the odd one out? (a) record every result (b) hide a failed test (c) measure the same way (d) use the same load
4. 4.True or false: to record every result is poor testing. (a) True (b) False
5. 5.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
6. 6.🧪 A paper bridge was tested three times. It held 330 g, 310 g and 320 g. What is the mean (average) load it held, in grams?
7. 7.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) test it only once (d) change only one thing
8. 8.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
9. 9.🧪 A paper bridge was tested three times. It held 300 g, 170 g and 310 g. What is the mean (average) load it held, in grams?
10. 10.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) build it with straws (b) read the challenge rules (c) choose and draw one (d) strengthen the weak part
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 360 g. Which design was the strongest? (a) design A (b) design B (c) design C
12. 12.True or false: to use a new load each time is poor testing. (a) True (b) False
13. 13.True or false: to hide a failed test is good testing. (a) True (b) False
14. 14.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
15. 15.True or false: to change only one thing is poor testing. (a) False (b) True
16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 190 g. Which design was the weakest? (a) design B (b) design C (c) design A
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the strongest? (a) design A (b) design C (c) design B
18. 18.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
19. 19.🔢 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) sketch three ideas
20. 20.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
21. 21.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
22. 22.🧪 A paper bridge was tested three times. It held 260 g, 100 g and 210 g. What is the mean (average) load it held, in grams?
23. 23.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) choose and draw one (b) strengthen the weak part
24. 24.True or false: to repeat each test is good testing. (a) False (b) True
25. 25.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) load it with coins (b) build it with straws
26. 26.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
27. 27.True or false: to guess, do not measure is poor testing. (a) False (b) True
28. 28.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
29. 29.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
30. 30.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 430 g. How many more grams did it hold?
31. 31.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to avoid testing (d) to decorate a room
32. 32.True or false: to use the same load is poor testing. (a) True (b) False
33. 33.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
34. 34.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) choose and draw one (b) load it with coins
35. 35.True or false: to skip writing results is good testing. (a) True (b) False
36. 36.True or false: to hide a failed test is poor testing. (a) False (b) True
37. 37.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
38. 38.🔍 Which is the odd one out? (a) record every result (b) guess, do not measure (c) change only one thing (d) measure the same way
39. 39.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) build it with straws (b) strengthen the weak part
40. 40.🧪 A paper bridge was tested three times. It held 190 g, 190 g and 190 g. What is the mean (average) load it held, in grams?

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