Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 976 · 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) repeat each test (b) record every result (c) hide a failed test (d) measure the same way
2. 2.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to avoid testing (d) to test ideas cheaply
3. 3.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) repeat each test (d) use the same load
4. 4.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) all of them (d) one
5. 5.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) sketch three ideas (c) strengthen the weak part (d) read the challenge rules
6. 6.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) build it with straws (c) sketch three ideas (d) strengthen the weak part
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 300 g and design C held 250 g. Which design was the weakest? (a) design A (b) design C (c) design B
8. 8.🧪 A paper bridge was tested three times. It held 230 g, 120 g and 310 g. What is the mean (average) load it held, in grams?
9. 9.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
10. 10.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
11. 11.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
12. 12.True or false: to record every result is poor testing. (a) True (b) False
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 200 g. Which design was the weakest? (a) design B (b) design C (c) design A
14. 14.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) measure the same way (d) change only one thing
15. 15.🔍 Which is the odd one out? (a) measure the same way (b) guess, do not measure (c) test it only once (d) use a new load each time
16. 16.🧪 A paper bridge was tested three times. It held 220 g, 210 g and 230 g. What is the mean (average) load it held, in grams?
17. 17.🧪 A paper bridge was tested three times. It held 330 g, 200 g and 340 g. What is the mean (average) load it held, in grams?
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 270 g and design C held 320 g. Which design was the strongest? (a) design C (b) design B (c) design A
19. 19.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
20. 20.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
21. 21.True or false: to measure the same way is good testing. (a) True (b) False
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 140 g. Which design was the weakest? (a) design C (b) design B (c) design A
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design B (b) design A (c) design C
24. 24.🧪 A paper bridge was tested three times. It held 180 g, 160 g and 140 g. What is the mean (average) load it held, in grams?
25. 25.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) use the same load (d) skip writing results
26. 26.True or false: to change lots at once is poor testing. (a) True (b) False
27. 27.🧪 What is a prototype? (a) the final product (b) a broken part (c) a sales poster (d) an early test model
28. 28.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) change only one thing (d) test it only once
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 260 g. Which design was the weakest? (a) design A (b) design C (c) design B
30. 30.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
31. 31.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
32. 32.True or false: to use a new load each time is good testing. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) skip writing results (b) repeat each test (c) change only one thing (d) use the same load
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 330 g. Which design was the weakest? (a) design A (b) design C (c) design B
35. 35.True or false: to skip writing results is poor testing. (a) False (b) True
36. 36.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
37. 37.True or false: to measure the same way is poor testing. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) use the same load (d) test it only once
39. 39.🧪 A paper bridge was tested three times. It held 250 g, 120 g and 170 g. What is the mean (average) load it held, in grams?
40. 40.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) sketch three ideas (b) load it with coins

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