Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 217 · 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 use a new load each time? (a) good testing (b) poor testing
2. 2.True or false: to change lots at once is good testing. (a) True (b) False
3. 3.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) load it with coins (c) build it with straws (d) sketch three ideas
4. 4.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) hide a failed test (d) change only one thing
5. 5.True or false: to measure the same way is good testing. (a) False (b) True
6. 6.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
7. 7.True or false: to guess, do not measure is poor testing. (a) True (b) False
8. 8.True or false: to change lots at once is poor testing. (a) False (b) True
9. 9.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
10. 10.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
11. 11.🔍 Which is the odd one out? (a) measure the same way (b) test it only once (c) change lots at once (d) use a new load each time
12. 12.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to test ideas cheaply (d) to decorate a room
13. 13.True or false: to hide a failed test is good testing. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) guess, do not measure (b) use a new load each time (c) change lots at once (d) change only one thing
15. 15.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
16. 16.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
17. 17.🔍 Which is the odd one out? (a) guess, do not measure (b) record every result (c) change only one thing (d) repeat each test
18. 18.True or false: to hide a failed test is poor testing. (a) True (b) False
19. 19.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
20. 20.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
21. 21.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) the first is wrong (d) to get reliable results
22. 22.🔢 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
23. 23.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) build it with straws (c) read the challenge rules (d) strengthen the weak part
24. 24.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
25. 25.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) sketch three ideas (b) strengthen the weak part
26. 26.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) measure the same way (d) use a new load each time
27. 27.True or false: to record every result is poor testing. (a) False (b) True
28. 28.🧪 A paper bridge was tested three times. It held 250 g, 180 g and 110 g. What is the mean (average) load it held, in grams?
29. 29.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) load it with coins (c) strengthen the weak part (d) read the challenge rules
30. 30.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
31. 31.🧪 A paper bridge was tested three times. It held 260 g, 100 g and 120 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 210 g, design B held 310 g and design C held 260 g. Which design was the strongest? (a) design A (b) design C (c) design B
33. 33.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
34. 34.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “build it with straws”? (a) build it with straws (b) sketch three ideas
35. 35.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
36. 36.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
37. 37.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) change only one thing (d) change lots at once
38. 38.True or false: to change only one thing is good testing. (a) True (b) False
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 170 g. Which design was the strongest? (a) design B (b) design A (c) design C
40. 40.True or false: to test it only once is good testing. (a) False (b) True

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