Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 148 · 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.🔍 Which is the odd one out? (a) hide a failed test (b) guess, do not measure (c) repeat each test (d) change lots at once
2. 2.True or false: to measure the same way is poor testing. (a) True (b) False
3. 3.True or false: to use the same load is good testing. (a) False (b) True
4. 4.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
5. 5.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) change lots at once (d) hide a failed test
6. 6.🧪 A paper bridge was tested three times. It held 260 g, 120 g and 160 g. What is the mean (average) load it held, in grams?
7. 7.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
8. 8.🧪 A paper bridge was tested three times. It held 360 g, 280 g and 260 g. What is the mean (average) load it held, in grams?
9. 9.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) load it with coins (b) strengthen the weak part
10. 10.🧪 A paper bridge was tested three times. It held 170 g, 80 g and 260 g. What is the mean (average) load it held, in grams?
11. 11.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
12. 12.🔍 Which is the odd one out? (a) guess, do not measure (b) hide a failed test (c) change lots at once (d) measure the same way
13. 13.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) sketch three ideas
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 160 g and design C held 210 g. Which design was the strongest? (a) design B (b) design A (c) design C
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 290 g and design C held 240 g. Which design was the weakest? (a) design A (b) design B (c) design C
16. 16.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) strengthen the weak part (c) sketch three ideas (d) build it with straws
17. 17.True or false: to use a new load each time is poor testing. (a) False (b) True
18. 18.🧪 A paper bridge was tested three times. It held 190 g, 150 g and 110 g. What is the mean (average) load it held, in grams?
19. 19.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
20. 20.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?
21. 21.🧪 What is a prototype? (a) the final product (b) an early test model (c) a broken part (d) a sales poster
22. 22.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) one (d) all of them
23. 23.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) record every result (d) skip writing results
24. 24.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) choose and draw one (c) load it with coins (d) sketch three ideas
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 250 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
26. 26.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
27. 27.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
28. 28.True or false: to record every result is good testing. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) hide a failed test (b) record every result (c) change only one thing (d) measure the same way
30. 30.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
31. 31.🧪 A paper bridge was tested three times. It held 340 g, 160 g and 220 g. What is the mean (average) load it held, in grams?
32. 32.🧪 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 A (b) design B (c) design C
33. 33.🧪 A paper bridge was tested three times. It held 200 g, 120 g and 220 g. What is the mean (average) load it held, in grams?
34. 34.🔍 Which is the odd one out? (a) record every result (b) guess, do not measure (c) measure the same way (d) repeat each test
35. 35.🧪 A paper bridge was tested three times. It held 400 g, 300 g and 350 g. What is the mean (average) load it held, in grams?
36. 36.True or false: to measure the same way is good testing. (a) False (b) True
37. 37.True or false: to guess, do not measure is good testing. (a) False (b) True
38. 38.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
39. 39.🧪 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 weakest? (a) design A (b) design C (c) design B
40. 40.True or false: to change only one thing is poor testing. (a) True (b) False

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