Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 10 · 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, which comes first: “read the challenge rules” or “build it with straws”? (a) build it with straws (b) read the challenge rules
2. 2.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) use the same load (d) change lots at once
3. 3.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
4. 4.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
5. 5.🔍 Which is the odd one out? (a) use a new load each time (b) repeat each test (c) change lots at once (d) guess, do not measure
6. 6.🔍 Which is the odd one out? (a) use a new load each time (b) measure the same way (c) guess, do not measure (d) test it only once
7. 7.🧪 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
8. 8.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to test ideas cheaply (d) to avoid testing
9. 9.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the strongest? (a) design C (b) design A (c) design B
11. 11.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
12. 12.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
13. 13.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 320 g and design C held 270 g. Which design was the weakest? (a) design C (b) design B (c) design A
15. 15.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
16. 16.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
17. 17.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) use the same load (d) repeat each test
18. 18.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
19. 19.True or false: to change lots at once is good testing. (a) True (b) False
20. 20.True or false: to measure the same way is poor testing. (a) True (b) False
21. 21.True or false: to repeat each test is poor testing. (a) True (b) False
22. 22.True or false: to test it only once is poor testing. (a) False (b) True
23. 23.True or false: to change only one thing is good testing. (a) False (b) True
24. 24.🧪 A paper bridge was tested three times. It held 310 g, 290 g and 330 g. What is the mean (average) load it held, in grams?
25. 25.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) test it only once (d) repeat each test
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the weakest? (a) design B (b) design A (c) design C
27. 27.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) repeat each test (d) hide a failed test
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design B (b) design A (c) design C
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 360 g and design C held 260 g. Which design was the strongest? (a) design A (b) design B (c) design C
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design C (b) design B (c) design A
31. 31.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) all of them (d) two
32. 32.True or false: to change lots at once is poor testing. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) guess, do not measure (d) repeat each test
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 170 g. Which design was the strongest? (a) design C (b) design B (c) design A
35. 35.🧪 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 strongest? (a) design C (b) design B (c) design A
36. 36.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) load it with coins (c) choose and draw one (d) strengthen the weak part
37. 37.🧪 A paper bridge was tested three times. It held 390 g, 260 g and 310 g. What is the mean (average) load it held, in grams?
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 160 g. Which design was the strongest? (a) design A (b) design C (c) design B
39. 39.🧪 A paper bridge was tested three times. It held 310 g, 260 g and 210 g. What is the mean (average) load it held, in grams?
40. 40.🧪 A paper bridge was tested three times. It held 290 g, 200 g and 170 g. What is the mean (average) load it held, in grams?

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