Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 95 · 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.True or false: to record every result is poor testing. (a) True (b) False
2. 2.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) build it with straws (c) load it with coins (d) choose and draw one
3. 3.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) strengthen the weak part (c) choose and draw one (d) sketch three ideas
4. 4.🔍 Which is the odd one out? (a) hide a failed test (b) record every result (c) use a new load each time (d) change lots at once
5. 5.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 170 g. What is the mean (average) load it held, in grams?
6. 6.🧪 A paper bridge was tested three times. It held 240 g, 170 g and 130 g. What is the mean (average) load it held, in grams?
7. 7.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
8. 8.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
9. 9.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) strengthen the weak part (b) choose and draw one
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the strongest? (a) design C (b) design A (c) design B
11. 11.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
12. 12.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) change only one thing (d) use a new load each time
13. 13.🔍 Which is the odd one out? (a) measure the same way (b) skip writing results (c) change lots at once (d) guess, do not measure
14. 14.🧪 A paper bridge was tested three times. It held 310 g, 180 g and 140 g. What is the mean (average) load it held, in grams?
15. 15.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
16. 16.🔍 Which is the odd one out? (a) guess, do not measure (b) record every result (c) use the same load (d) repeat each test
17. 17.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
18. 18.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 250 g and design C held 200 g. Which design was the strongest? (a) design B (b) design A (c) design C
20. 20.🔢 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) read the challenge rules (d) strengthen the weak part
21. 21.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) sketch three ideas (c) build it with straws (d) read the challenge rules
22. 22.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) all of them (d) one
23. 23.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) change only one thing (d) test it only once
24. 24.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
25. 25.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
26. 26.🧪 A paper bridge was tested three times. It held 280 g, 170 g and 330 g. What is the mean (average) load it held, in grams?
27. 27.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) sketch three ideas (b) read the challenge rules
28. 28.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 380 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
30. 30.True or false: to test it only once is poor testing. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) guess, do not measure (d) change lots at once
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 360 g. Which design was the weakest? (a) design A (b) design B (c) design C
33. 33.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
34. 34.🧪 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 strongest? (a) design C (b) design B (c) design A
35. 35.🧪 A paper bridge was tested three times. It held 370 g, 220 g and 280 g. What is the mean (average) load it held, in grams?
36. 36.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
37. 37.🔍 Which is the odd one out? (a) hide a failed test (b) use the same load (c) repeat each test (d) change only one thing
38. 38.True or false: to use a new load each time is good testing. (a) True (b) False
39. 39.🧪 A paper bridge was tested three times. It held 370 g, 280 g and 370 g. What is the mean (average) load it held, in grams?
40. 40.🔍 Which is the odd one out? (a) skip writing results (b) use the same load (c) measure the same way (d) change only one thing

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