Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 150 · 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.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) use a new load each time (d) record every result
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 270 g and design C held 220 g. Which design was the weakest? (a) design C (b) design B (c) design A
3. 3.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
4. 4.🔍 Which is the odd one out? (a) guess, do not measure (b) measure the same way (c) repeat each test (d) use the same load
5. 5.True or false: to use a new load each time is poor testing. (a) False (b) True
6. 6.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) sketch three ideas (c) choose and draw one (d) build it with straws
7. 7.🧪 A paper bridge was tested three times. It held 250 g, 200 g and 150 g. What is the mean (average) load it held, in grams?
8. 8.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) none (d) two
9. 9.True or false: to test it only once is good testing. (a) False (b) True
10. 10.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) the final product (d) a broken part
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 280 g. Which design was the weakest? (a) design C (b) design B (c) design A
12. 12.True or false: to skip writing results is good testing. (a) True (b) False
13. 13.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
14. 14.🧪 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
15. 15.True or false: to record every result is poor testing. (a) True (b) False
16. 16.True or false: to record every result is good testing. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) measure the same way (b) skip writing results (c) change only one thing (d) repeat each test
18. 18.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) sketch three ideas (b) choose and draw one
19. 19.True or false: to use the same load is good testing. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) use the same load (d) change lots at once
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 140 g and design C held 190 g. Which design was the weakest? (a) design B (b) design A (c) design C
22. 22.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) build it with straws (c) read the challenge rules (d) load it with coins
23. 23.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
24. 24.True or false: to test it only once is poor testing. (a) False (b) True
25. 25.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
26. 26.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
27. 27.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
28. 28.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) change lots at once (d) change only one thing
29. 29.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
30. 30.🧪 A paper bridge was tested three times. It held 280 g, 180 g and 380 g. What is the mean (average) load it held, in grams?
31. 31.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
32. 32.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
33. 33.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
34. 34.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) build it with straws (c) read the challenge rules (d) sketch three ideas
35. 35.True or false: to use a new load each time is good testing. (a) True (b) False
36. 36.🧪 A paper bridge was tested three times. It held 220 g, 170 g and 120 g. What is the mean (average) load it held, in grams?
37. 37.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) build it with straws (b) read the challenge rules
38. 38.True or false: to hide a failed test is poor testing. (a) True (b) False
39. 39.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
40. 40.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) load it with coins (b) sketch three ideas

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