Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 481 · 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) use a new load each time (b) record every result (c) repeat each test (d) change only one thing
2. 2.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
3. 3.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to test ideas cheaply (c) to decorate a room (d) to sell them at once
4. 4.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
5. 5.True or false: to measure the same way is good testing. (a) True (b) False
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 130 g. Which design was the weakest? (a) design B (b) design C (c) design A
7. 7.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) choose and draw one (c) build it with straws (d) strengthen the weak part
8. 8.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) strengthen the weak part (c) read the challenge rules (d) sketch three ideas
9. 9.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
10. 10.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
11. 11.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
12. 12.True or false: to hide a failed test is poor testing. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) change only one thing (d) hide a failed test
14. 14.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
15. 15.🔍 Which is the odd one out? (a) use a new load each time (b) measure the same way (c) test it only once (d) change lots at once
16. 16.True or false: to hide a failed test is good testing. (a) True (b) False
17. 17.🧪 A paper bridge was tested three times. It held 360 g, 330 g and 360 g. What is the mean (average) load it held, in grams?
18. 18.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
19. 19.🧪 A paper bridge was tested three times. It held 350 g, 330 g and 310 g. What is the mean (average) load it held, in grams?
20. 20.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
21. 21.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
22. 22.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
23. 23.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
24. 24.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) skip writing results (d) change only one thing
25. 25.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
26. 26.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) repeat each test (d) use a new load each time
27. 27.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) the final product (d) a broken part
28. 28.🔍 Which is the odd one out? (a) record every result (b) guess, do not measure (c) use a new load each time (d) skip writing results
29. 29.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
30. 30.True or false: to use a new load each time is poor testing. (a) True (b) False
31. 31.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) load it with coins (b) strengthen the weak part
32. 32.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) use the same load (d) change lots at once
33. 33.🔢 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
34. 34.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
35. 35.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
36. 36.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) load it with coins (c) build it with straws (d) sketch three ideas
37. 37.🧪 A paper bridge was tested three times. It held 260 g, 130 g and 270 g. What is the mean (average) load it held, in grams?
38. 38.True or false: to test it only once is good testing. (a) False (b) True
39. 39.🧪 A paper bridge was tested three times. It held 250 g, 60 g and 170 g. What is the mean (average) load it held, in grams?
40. 40.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing

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