Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 303 · 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.🧪 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 C (b) design B (c) design A
2. 2.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
3. 3.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) build it with straws (b) read the challenge rules (c) load it with coins (d) choose and draw one
4. 4.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
5. 5.True or false: to measure the same way is poor testing. (a) True (b) False
6. 6.True or false: to change lots at once is good testing. (a) True (b) False
7. 7.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
8. 8.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
9. 9.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) the first is wrong (d) to get reliable results
10. 10.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) strengthen the weak part (b) read the challenge rules
11. 11.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
12. 12.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) all of them (d) two
13. 13.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
14. 14.🧪 A paper bridge was tested three times. It held 300 g, 180 g and 210 g. What is the mean (average) load it held, in grams?
15. 15.🧪 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 strongest? (a) design B (b) design C (c) design A
16. 16.True or false: to repeat each test is good testing. (a) False (b) True
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the weakest? (a) design B (b) design C (c) design A
18. 18.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) use a new load each time (d) change only one thing
19. 19.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) build it with straws (b) strengthen the weak part
20. 20.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
21. 21.True or false: to skip writing results is good testing. (a) True (b) False
22. 22.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
23. 23.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) strengthen the weak part (b) sketch three ideas
24. 24.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) strengthen the weak part (c) load it with coins (d) choose and draw one
25. 25.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) strengthen the weak part (c) sketch three ideas (d) read the challenge rules
26. 26.True or false: to hide a failed test is poor testing. (a) False (b) True
27. 27.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
28. 28.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) test it only once (d) repeat each test
29. 29.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
30. 30.🔢 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
31. 31.🧪 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 A (b) design C (c) design B
32. 32.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
33. 33.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
34. 34.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) measure the same way (d) skip writing results
35. 35.True or false: to change only one thing is poor testing. (a) True (b) False
36. 36.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to test ideas cheaply (d) to avoid testing
37. 37.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
38. 38.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) record every result (d) skip writing results
39. 39.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
40. 40.🔍 Which is the odd one out? (a) use the same load (b) guess, do not measure (c) change only one thing (d) record every result

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