Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 722 · 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) repeat each test (b) record every result (c) test it only once (d) use the same load
2. 2.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
3. 3.🔢 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
4. 4.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) read the challenge rules (c) sketch three ideas (d) strengthen the weak part
5. 5.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) hide a failed test (d) change only one thing
6. 6.True or false: to measure the same way is good testing. (a) False (b) True
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 300 g and design C held 250 g. Which design was the weakest? (a) design A (b) design B (c) design C
8. 8.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) guess, do not measure (d) repeat each test
9. 9.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
10. 10.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) strengthen the weak part (b) choose and draw one
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design B (b) design C (c) design A
12. 12.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
13. 13.True or false: to change only one thing is good testing. (a) True (b) False
14. 14.🧪 A paper bridge was tested three times. It held 240 g, 140 g and 250 g. What is the mean (average) load it held, in grams?
15. 15.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) change only one thing (d) repeat each test
16. 16.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
17. 17.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) one (d) all of them
18. 18.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
19. 19.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
20. 20.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
21. 21.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
22. 22.True or false: to skip writing results is good testing. (a) True (b) False
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 400 g and design C held 300 g. Which design was the weakest? (a) design A (b) design C (c) design B
24. 24.True or false: to test it only once is good testing. (a) True (b) False
25. 25.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) the final product (d) an early test model
26. 26.True or false: to use a new load each time is good testing. (a) True (b) False
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 190 g. Which design was the weakest? (a) design A (b) design B (c) design C
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 110 g. Which design was the strongest? (a) design C (b) design A (c) design B
29. 29.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
30. 30.True or false: to change lots at once is good testing. (a) True (b) False
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design A (b) design B (c) design C
32. 32.True or false: to change only one thing is poor testing. (a) True (b) False
33. 33.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
34. 34.🔍 Which is the odd one out? (a) hide a failed test (b) record every result (c) guess, do not measure (d) test it only once
35. 35.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) load it with coins (c) read the challenge rules (d) choose and draw one
36. 36.🔢 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
37. 37.True or false: to guess, do not measure is good testing. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) repeat each test (b) skip writing results (c) change lots at once (d) hide a failed test
39. 39.🔢 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
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 150 g. Which design was the weakest? (a) design C (b) design A (c) design B

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids