Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 154 · 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.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) all of them (d) two
2. 2.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) the first is wrong (d) it looks busy
3. 3.True or false: to use the same load is poor testing. (a) False (b) True
4. 4.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
5. 5.True or false: to record every result is poor testing. (a) False (b) True
6. 6.True or false: to repeat each test is poor testing. (a) True (b) False
7. 7.True or false: to change only one thing is poor testing. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) change lots at once (d) change only one thing
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 210 g and design C held 310 g. Which design was the weakest? (a) design B (b) design C (c) design A
10. 10.🧪 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 weakest? (a) design A (b) design C (c) design B
11. 11.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) the final product (d) an early test model
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 360 g, design B held 260 g and design C held 310 g. Which design was the strongest? (a) design B (b) design A (c) design C
13. 13.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
14. 14.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
15. 15.True or false: to skip writing results is good testing. (a) False (b) True
16. 16.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
17. 17.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
18. 18.True or false: to hide a failed test is good testing. (a) True (b) False
19. 19.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to test ideas cheaply (d) to sell them at once
20. 20.True or false: to use a new load each time is good testing. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) test it only once (d) measure the same way
22. 22.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
23. 23.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) hide a failed test (d) repeat each test
24. 24.🧪 A paper bridge was tested three times. It held 230 g, 120 g and 220 g. What is the mean (average) load it held, in grams?
25. 25.🧪 A paper bridge was tested three times. It held 290 g, 130 g and 240 g. What is the mean (average) load it held, in grams?
26. 26.🔍 Which is the odd one out? (a) guess, do not measure (b) measure the same way (c) hide a failed test (d) test it only once
27. 27.True or false: to record every result is good testing. (a) True (b) False
28. 28.🧪 A paper bridge was tested three times. It held 350 g, 160 g and 270 g. What is the mean (average) load it held, in grams?
29. 29.🧪 A paper bridge was tested three times. It held 210 g, 150 g and 180 g. What is the mean (average) load it held, in grams?
30. 30.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
31. 31.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) record every result (d) test it only once
32. 32.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
33. 33.🧪 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 weakest? (a) design A (b) design C (c) design B
34. 34.🧪 A paper bridge was tested three times. It held 370 g, 240 g and 350 g. What is the mean (average) load it held, in grams?
35. 35.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
36. 36.🧪 A paper bridge was tested three times. It held 250 g, 130 g and 190 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 270 g. Which design was the weakest? (a) design B (b) design C (c) design A
38. 38.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
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 240 g. After the team improved it, the new prototype held 440 g. How many more grams did it hold?

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