Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 645 · 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) hide a failed test (b) change only one thing (c) use the same load (d) measure the same way
2. 2.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) build it with straws (c) choose and draw one (d) load it with coins
3. 3.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 400 g. Which design was the weakest? (a) design A (b) design B (c) design C
5. 5.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to decorate a room (d) to test ideas cheaply
6. 6.True or false: to measure the same way is poor testing. (a) True (b) False
7. 7.True or false: to use the same load is poor testing. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) change lots at once (d) measure the same way
9. 9.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) sketch three ideas (c) read the challenge rules (d) strengthen the weak part
10. 10.True or false: to use a new load each time is poor testing. (a) True (b) False
11. 11.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
12. 12.True or false: to record every result is poor testing. (a) True (b) False
13. 13.🧪 A paper bridge was tested three times. It held 430 g, 270 g and 350 g. What is the mean (average) load it held, in grams?
14. 14.True or false: to hide a failed test is good testing. (a) True (b) False
15. 15.True or false: to use a new load each time is good testing. (a) True (b) False
16. 16.True or false: to guess, do not measure is poor testing. (a) False (b) True
17. 17.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
18. 18.True or false: to change only one thing is good testing. (a) False (b) True
19. 19.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
20. 20.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) change lots at once (d) use a new load each time
21. 21.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
22. 22.🧪 A paper bridge was tested three times. It held 330 g, 270 g and 390 g. What is the mean (average) load it held, in grams?
23. 23.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
24. 24.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
25. 25.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
26. 26.🧪 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 A (b) design B (c) design C
27. 27.True or false: to repeat each test is poor testing. (a) False (b) True
28. 28.🧪 A paper bridge was tested three times. It held 200 g, 120 g and 220 g. What is the mean (average) load it held, in grams?
29. 29.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
30. 30.True or false: to test it only once is poor testing. (a) False (b) True
31. 31.🧪 A paper bridge was tested three times. It held 430 g, 250 g and 370 g. What is the mean (average) load it held, in grams?
32. 32.🧪 A paper bridge was tested three times. It held 190 g, 50 g and 210 g. What is the mean (average) load it held, in grams?
33. 33.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
34. 34.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
35. 35.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
36. 36.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
37. 37.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) load it with coins (c) sketch three ideas (d) read the challenge rules
38. 38.True or false: to skip writing results is good testing. (a) True (b) False
39. 39.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
40. 40.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?

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