Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 709 · 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 change only one thing? (a) good testing (b) poor testing
2. 2.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) repeat each test (d) use a new load each time
3. 3.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
4. 4.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) change only one thing (d) use the same load
5. 5.True or false: to record every result is poor testing. (a) True (b) False
6. 6.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) load it with coins (b) choose and draw one
7. 7.True or false: to use a new load each time is good testing. (a) True (b) False
8. 8.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
9. 9.True or false: to measure the same way is good testing. (a) True (b) False
10. 10.True or false: to hide a failed test is poor testing. (a) True (b) False
11. 11.True or false: to test it only once is poor testing. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) use the same load (d) hide a failed test
13. 13.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) repeat each test (d) use a new load each time
14. 14.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) one (d) none
15. 15.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to decorate a room (d) to sell them at once
16. 16.True or false: to change lots at once is good testing. (a) False (b) True
17. 17.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
18. 18.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
19. 19.🧪 A paper bridge was tested three times. It held 250 g, 130 g and 70 g. What is the mean (average) load it held, in grams?
20. 20.🧪 A paper bridge was tested three times. It held 360 g, 250 g and 170 g. What is the mean (average) load it held, in grams?
21. 21.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) measure the same way (d) test it only once
22. 22.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) to use more paper (d) it looks busy
23. 23.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
24. 24.True or false: to guess, do not measure is good testing. (a) False (b) True
25. 25.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 180 g. Which design was the weakest? (a) design B (b) design C (c) design A
27. 27.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) measure the same way (d) guess, do not measure
28. 28.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) skip writing results (d) use the same load
29. 29.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
30. 30.True or false: to repeat each test is poor testing. (a) False (b) True
31. 31.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
32. 32.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) build it with straws (d) load it with coins
33. 33.🧪 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 A (b) design B (c) design C
34. 34.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 270 g. Which design was the strongest? (a) design A (b) design B (c) design C
36. 36.True or false: to hide a failed test is good testing. (a) True (b) False
37. 37.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
38. 38.🔍 Which is the odd one out? (a) use the same load (b) change lots at once (c) repeat each test (d) record every result
39. 39.True or false: to skip writing results is poor testing. (a) False (b) True
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 250 g and design C held 300 g. Which design was the strongest? (a) design B (b) design A (c) design C

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