Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 594 · 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, what comes right after “build it with straws”? (a) load it with coins (b) strengthen the weak part (c) choose and draw one (d) sketch three ideas
2. 2.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) use the same load (d) hide a failed test
3. 3.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) change only one thing (d) hide a failed test
4. 4.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
5. 5.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
6. 6.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
7. 7.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) read the challenge rules (b) load it with coins
8. 8.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) use a new load each time (d) repeat each test
9. 9.🔍 Which is the odd one out? (a) use the same load (b) test it only once (c) change only one thing (d) record every result
10. 10.🔍 Which is the odd one out? (a) skip writing results (b) record every result (c) use a new load each time (d) change lots at once
11. 11.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) build it with straws (c) load it with coins (d) choose and draw one
12. 12.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
13. 13.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
14. 14.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design A (b) design C (c) design B
16. 16.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design A (b) design B (c) design C
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 350 g and design C held 300 g. Which design was the strongest? (a) design A (b) design C (c) design B
19. 19.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) to get reliable results (d) the first is wrong
20. 20.True or false: to test it only once is poor testing. (a) False (b) True
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 250 g and design C held 200 g. Which design was the strongest? (a) design C (b) design A (c) design B
22. 22.🧪 A paper bridge was tested three times. It held 360 g, 270 g and 180 g. What is the mean (average) load it held, in grams?
23. 23.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) guess, do not measure (d) repeat each test
24. 24.True or false: to record every result is poor testing. (a) True (b) False
25. 25.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
26. 26.True or false: to change only one thing is good testing. (a) False (b) True
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 320 g. Which design was the weakest? (a) design B (b) design C (c) design A
28. 28.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) choose and draw one (c) build it with straws (d) sketch three ideas
29. 29.True or false: to measure the same way is good testing. (a) True (b) False
30. 30.True or false: to guess, do not measure is good testing. (a) False (b) True
31. 31.🧪 A paper bridge was tested three times. It held 200 g, 60 g and 190 g. What is the mean (average) load it held, in grams?
32. 32.True or false: to skip writing results is good testing. (a) True (b) False
33. 33.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
34. 34.True or false: to guess, do not measure is poor testing. (a) False (b) True
35. 35.True or false: to record every result is good testing. (a) False (b) True
36. 36.🧪 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
37. 37.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
38. 38.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
39. 39.🔍 Which is the odd one out? (a) skip writing results (b) measure the same way (c) hide a failed test (d) guess, do not measure
40. 40.🧪 A paper bridge was tested three times. It held 190 g, 80 g and 270 g. What is the mean (average) load it held, in grams?

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