Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 69 · 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) change only one thing (b) use the same load (c) use a new load each time (d) measure the same way
2. 2.True or false: to repeat each test is poor testing. (a) True (b) False
3. 3.True or false: to test it only once is poor testing. (a) False (b) True
4. 4.🧪 A paper bridge was tested three times. It held 200 g, 110 g and 140 g. What is the mean (average) load it held, in grams?
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 140 g. Which design was the weakest? (a) design A (b) design B (c) design C
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 310 g. Which design was the strongest? (a) design A (b) design C (c) design B
7. 7.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) guess, do not measure (d) use the same load
8. 8.🧪 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
9. 9.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) strengthen the weak part (b) load it with coins
10. 10.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
11. 11.True or false: to use the same load is poor testing. (a) True (b) False
12. 12.🔢 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
13. 13.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
14. 14.🔍 Which is the odd one out? (a) record every result (b) test it only once (c) use the same load (d) change only one thing
15. 15.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
16. 16.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
17. 17.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) choose and draw one (b) build it with straws
18. 18.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) build it with straws
19. 19.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
20. 20.🧪 A paper bridge was tested three times. It held 290 g, 260 g and 290 g. What is the mean (average) load it held, in grams?
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 170 g. Which design was the strongest? (a) design A (b) design B (c) design C
22. 22.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
23. 23.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
24. 24.True or false: to measure the same way is good testing. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) hide a failed test (d) change only one thing
26. 26.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
27. 27.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 200 g and design C held 250 g. Which design was the weakest? (a) design A (b) design B (c) design C
29. 29.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 90 g. How many more grams did it hold?
30. 30.True or false: to test it only once is good testing. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) guess, do not measure (d) change lots at once
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 130 g. Which design was the strongest? (a) design A (b) design B (c) design C
33. 33.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
34. 34.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) read the challenge rules (b) sketch three ideas
35. 35.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) measure the same way (d) change only one thing
36. 36.True or false: to change lots at once is poor testing. (a) False (b) True
37. 37.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) read the challenge rules (c) build it with straws (d) strengthen the weak part
38. 38.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) measure the same way (d) guess, do not measure
39. 39.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
40. 40.🔍 Which is the odd one out? (a) test it only once (b) skip writing results (c) change lots at once (d) repeat each test

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