Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 870 · 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.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) sketch three ideas (c) choose and draw one (d) strengthen the weak part
2. 2.True or false: to change only one thing is good testing. (a) False (b) True
3. 3.🧪 A paper bridge was tested three times. It held 280 g, 100 g and 220 g. What is the mean (average) load it held, in grams?
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 400 g. Which design was the weakest? (a) design C (b) design A (c) design B
5. 5.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
6. 6.True or false: to repeat each test is poor testing. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) use the same load (d) record every result
8. 8.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) use a new load each time (d) change only one thing
9. 9.True or false: to use a new load each time is good testing. (a) False (b) True
10. 10.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
11. 11.🧪 A paper bridge was tested three times. It held 200 g, 170 g and 140 g. What is the mean (average) load it held, in grams?
12. 12.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
13. 13.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to sell them at once (d) to decorate a room
14. 14.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
15. 15.True or false: to test it only once is poor testing. (a) True (b) False
16. 16.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
17. 17.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
18. 18.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) repeat each test (d) measure the same way
19. 19.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) use the same load (d) measure the same way
20. 20.🧪 A paper bridge was tested three times. It held 350 g, 250 g and 390 g. What is the mean (average) load it held, in grams?
21. 21.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) build it with straws (b) strengthen the weak part
22. 22.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 440 g. How many more grams did it hold?
23. 23.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) change lots at once (d) record every result
24. 24.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
25. 25.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 300 g and design C held 350 g. Which design was the weakest? (a) design C (b) design B (c) design A
27. 27.True or false: to test it only once is good testing. (a) True (b) False
28. 28.🧪 Why repeat a test three times? (a) to get reliable results (b) it looks busy (c) to use more paper (d) the first is wrong
29. 29.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) two (d) all of them
30. 30.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) use the same load (d) use a new load each time
31. 31.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
32. 32.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
33. 33.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
34. 34.True or false: to measure the same way is poor testing. (a) True (b) False
35. 35.🧪 A paper bridge was tested three times. It held 190 g, 140 g and 120 g. What is the mean (average) load it held, in grams?
36. 36.🔍 Which is the odd one out? (a) hide a failed test (b) measure the same way (c) skip writing results (d) use a new load each time
37. 37.True or false: to hide a failed test is poor testing. (a) True (b) False
38. 38.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
39. 39.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
40. 40.True or false: to change lots at once is poor testing. (a) False (b) True

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