Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 523 · 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 hide a failed test is poor testing. (a) True (b) False
2. 2.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
3. 3.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) two (d) one
4. 4.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) hide a failed test (d) use the same load
5. 5.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
6. 6.🧪 A paper bridge was tested three times. It held 360 g, 290 g and 340 g. What is the mean (average) load it held, in grams?
7. 7.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) strengthen the weak part (c) choose and draw one (d) load it with coins
8. 8.True or false: to measure the same way is good testing. (a) False (b) True
9. 9.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
10. 10.True or false: to guess, do not measure is good testing. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) use the same load (b) skip writing results (c) repeat each test (d) measure the same way
12. 12.🧪 What is a prototype? (a) the final product (b) a broken part (c) a sales poster (d) an early test model
13. 13.True or false: to record every result is good testing. (a) True (b) False
14. 14.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
15. 15.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) record every result (d) repeat each test
16. 16.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 300 g. Which design was the weakest? (a) design C (b) design A (c) design B
18. 18.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
19. 19.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) sketch three ideas (b) choose and draw one
20. 20.True or false: to change lots at once is good testing. (a) True (b) False
21. 21.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 470 g. How many more grams did it hold?
22. 22.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) it looks busy (d) to get reliable results
23. 23.🧪 A paper bridge was tested three times. It held 230 g, 150 g and 100 g. What is the mean (average) load it held, in grams?
24. 24.True or false: to change lots at once is poor testing. (a) False (b) True
25. 25.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to avoid testing (d) to sell them at once
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 190 g and design C held 240 g. Which design was the strongest? (a) design A (b) design C (c) design B
27. 27.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
28. 28.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
29. 29.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) change only one thing (d) guess, do not measure
30. 30.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) record every result (d) change lots at once
31. 31.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
32. 32.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) repeat each test (d) change only one thing
33. 33.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “build it with straws”? (a) sketch three ideas (b) build it with straws
34. 34.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
35. 35.🔢 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
36. 36.True or false: to guess, do not measure is poor testing. (a) True (b) False
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 220 g. Which design was the strongest? (a) design B (b) design C (c) design A
38. 38.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
39. 39.True or false: to change only one thing is poor testing. (a) False (b) True
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 200 g and design C held 150 g. Which design was the weakest? (a) design A (b) design C (c) design B

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