Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 977 · 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 lots at once? (a) poor testing (b) good testing
2. 2.🔍 Which is the odd one out? (a) test it only once (b) skip writing results (c) change lots at once (d) use the same load
3. 3.True or false: to change only one thing is poor testing. (a) False (b) True
4. 4.🧪 A paper bridge was tested three times. It held 310 g, 240 g and 350 g. What is the mean (average) load it held, in grams?
5. 5.🧪 A paper bridge was tested three times. It held 240 g, 230 g and 250 g. What is the mean (average) load it held, in grams?
6. 6.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
7. 7.🧪 A paper bridge was tested three times. It held 430 g, 260 g and 300 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
9. 9.True or false: to record every result is poor testing. (a) True (b) False
10. 10.🔢 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
11. 11.🔢 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
12. 12.True or false: to skip writing results is poor testing. (a) True (b) False
13. 13.True or false: to repeat each test is poor testing. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) record every result (d) guess, do not measure
15. 15.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) choose and draw one (b) sketch three ideas
16. 16.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
17. 17.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
18. 18.🧪 A paper bridge was tested three times. It held 280 g, 180 g and 290 g. What is the mean (average) load it held, in grams?
19. 19.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
20. 20.🧪 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 weakest? (a) design A (b) design C (c) design B
21. 21.🔍 Which is the odd one out? (a) repeat each test (b) hide a failed test (c) test it only once (d) use a new load each time
22. 22.🧪 A paper bridge was tested three times. It held 200 g, 130 g and 240 g. What is the mean (average) load it held, in grams?
23. 23.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
24. 24.🧪 A paper bridge was tested three times. It held 430 g, 330 g and 230 g. What is the mean (average) load it held, in grams?
25. 25.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
26. 26.🧪 A paper bridge was tested three times. It held 330 g, 300 g and 330 g. What is the mean (average) load it held, in grams?
27. 27.🧪 A paper bridge was tested three times. It held 160 g, 60 g and 260 g. What is the mean (average) load it held, in grams?
28. 28.🧪 A paper bridge was tested three times. It held 270 g, 230 g and 310 g. What is the mean (average) load it held, in grams?
29. 29.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to decorate a room (d) to avoid testing
30. 30.🔍 Which is the odd one out? (a) use a new load each time (b) measure the same way (c) test it only once (d) guess, do not measure
31. 31.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
32. 32.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) use the same load (d) use a new load each time
33. 33.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
34. 34.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
35. 35.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 330 g and design C held 280 g. Which design was the weakest? (a) design B (b) design A (c) design C
37. 37.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
38. 38.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) load it with coins (b) sketch three ideas
39. 39.🧪 A paper bridge was tested three times. It held 300 g, 200 g and 100 g. What is the mean (average) load it held, in grams?
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 100 g. Which design was the strongest? (a) design C (b) design A (c) design B

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