Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 391 · 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.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
2. 2.True or false: to record every result is poor testing. (a) True (b) False
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 150 g. Which design was the strongest? (a) design C (b) design A (c) design B
4. 4.True or false: to skip writing results is poor testing. (a) False (b) True
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 250 g. Which design was the weakest? (a) design A (b) design B (c) design C
6. 6.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
7. 7.🧪 A paper bridge was tested three times. It held 350 g, 220 g and 390 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) the first is wrong (d) to get reliable results
9. 9.🔍 Which is the odd one out? (a) record every result (b) change lots at once (c) guess, do not measure (d) hide a failed test
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 130 g and design C held 230 g. Which design was the weakest? (a) design B (b) design C (c) design A
11. 11.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) build it with straws
12. 12.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to sell them at once (d) to decorate a room
13. 13.🧪 A paper bridge was tested three times. It held 350 g, 280 g and 390 g. What is the mean (average) load it held, in grams?
14. 14.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) load it with coins
15. 15.🧪 A paper bridge was tested three times. It held 210 g, 120 g and 270 g. What is the mean (average) load it held, in grams?
16. 16.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
17. 17.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) strengthen the weak part (b) build it with straws
18. 18.True or false: to change lots at once is good testing. (a) False (b) True
19. 19.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
20. 20.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
21. 21.🧪 A paper bridge was tested three times. It held 330 g, 330 g and 330 g. What is the mean (average) load it held, in grams?
22. 22.🔢 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) load it with coins (d) read the challenge rules
23. 23.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) use a new load each time (d) test it only once
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 370 g. Which design was the strongest? (a) design C (b) design A (c) design B
25. 25.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
26. 26.🔍 Which is the odd one out? (a) hide a failed test (b) skip writing results (c) measure the same way (d) use a new load each time
27. 27.True or false: to test it only once is good testing. (a) True (b) False
28. 28.🧪 What is a prototype? (a) an early test model (b) a broken part (c) a sales poster (d) the final product
29. 29.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) measure the same way (d) test it only once
30. 30.🧪 A paper bridge was tested three times. It held 180 g, 170 g and 160 g. What is the mean (average) load it held, in grams?
31. 31.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
32. 32.🧪 A paper bridge was tested three times. It held 290 g, 190 g and 210 g. What is the mean (average) load it held, in grams?
33. 33.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) change lots at once (d) guess, do not measure
34. 34.🧪 A paper bridge was tested three times. It held 230 g, 150 g and 280 g. What is the mean (average) load it held, in grams?
35. 35.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) change only one thing (d) skip writing results
36. 36.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) use a new load each time (d) use the same load
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 290 g and design C held 240 g. Which design was the weakest? (a) design C (b) design A (c) design B
38. 38.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
39. 39.🧪 A paper bridge was tested three times. It held 450 g, 320 g and 280 g. What is the mean (average) load it held, in grams?
40. 40.True or false: to hide a failed test is poor testing. (a) False (b) True

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