Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 122 · 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.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
3. 3.True or false: to use a new load each time is good testing. (a) True (b) False
4. 4.🧪 A paper bridge was tested three times. It held 320 g, 200 g and 140 g. What is the mean (average) load it held, in grams?
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 210 g. Which design was the weakest? (a) design B (b) design A (c) design C
6. 6.🧪 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
7. 7.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
8. 8.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 100 g and design C held 200 g. Which design was the strongest? (a) design A (b) design C (c) design B
10. 10.True or false: to test it only once is poor testing. (a) False (b) True
11. 11.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
12. 12.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 300 g and design C held 200 g. Which design was the strongest? (a) design C (b) design B (c) design A
14. 14.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to avoid testing (d) to decorate a room
15. 15.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
16. 16.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) change only one thing (d) test it only once
17. 17.True or false: to use the same load is poor testing. (a) False (b) True
18. 18.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) read the challenge rules (c) sketch three ideas (d) strengthen the weak part
19. 19.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
20. 20.True or false: to change only one thing is good testing. (a) False (b) True
21. 21.True or false: to change lots at once is good testing. (a) True (b) False
22. 22.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
23. 23.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 160 g and design C held 210 g. Which design was the weakest? (a) design A (b) design B (c) design C
25. 25.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
26. 26.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
27. 27.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
28. 28.🔍 Which is the odd one out? (a) repeat each test (b) guess, do not measure (c) record every result (d) change only one thing
29. 29.🧪 A paper bridge was tested three times. It held 150 g, 130 g and 170 g. What is the mean (average) load it held, in grams?
30. 30.🧪 A paper bridge was tested three times. It held 300 g, 240 g and 360 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to use the same load is good testing. (a) False (b) True
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the strongest? (a) design B (b) design C (c) design A
33. 33.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) measure the same way (d) test it only once
34. 34.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
35. 35.🧪 A paper bridge was tested three times. It held 420 g, 270 g and 300 g. What is the mean (average) load it held, in grams?
36. 36.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
37. 37.🧪 A paper bridge was tested three times. It held 200 g, 150 g and 130 g. What is the mean (average) load it held, in grams?
38. 38.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
39. 39.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) use the same load (d) skip writing results
40. 40.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) use the same load (d) change lots at once

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