Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 598 · 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) change only one thing (b) use the same load (c) hide a failed test (d) repeat each test
2. 2.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
3. 3.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
4. 4.True or false: to use the same load is good testing. (a) True (b) False
5. 5.🔢 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
6. 6.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
7. 7.🔍 Which is the odd one out? (a) hide a failed test (b) use a new load each time (c) test it only once (d) record every result
8. 8.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) use a new load each time (d) change only one thing
9. 9.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) use the same load (d) change only one thing
10. 10.🧪 A paper bridge was tested three times. It held 300 g, 270 g and 300 g. What is the mean (average) load it held, in grams?
11. 11.True or false: to measure the same way is good testing. (a) False (b) True
12. 12.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to test ideas cheaply (d) to decorate a room
13. 13.True or false: to skip writing results is good testing. (a) False (b) True
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 180 g and design C held 230 g. Which design was the weakest? (a) design B (b) design A (c) design C
15. 15.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
16. 16.True or false: to hide a failed test is good testing. (a) False (b) True
17. 17.🧪 A paper bridge was tested three times. It held 230 g, 80 g and 170 g. What is the mean (average) load it held, in grams?
18. 18.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
19. 19.True or false: to use a new load each time is poor testing. (a) False (b) True
20. 20.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
21. 21.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) choose and draw one (b) strengthen the weak part
22. 22.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
23. 23.🧪 A paper bridge was tested three times. It held 350 g, 330 g and 340 g. What is the mean (average) load it held, in grams?
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 330 g. Which design was the weakest? (a) design B (b) design A (c) design C
25. 25.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
26. 26.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) read the challenge rules (b) load it with coins
27. 27.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) it looks busy (d) to get reliable results
28. 28.🔍 Which is the odd one out? (a) use a new load each time (b) measure the same way (c) test it only once (d) guess, do not measure
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 250 g and design C held 200 g. Which design was the weakest? (a) design B (b) design A (c) design C
30. 30.🧪 A paper bridge was tested three times. It held 390 g, 240 g and 300 g. What is the mean (average) load it held, in grams?
31. 31.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) skip writing results (d) change only one thing
32. 32.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
33. 33.🧪 A paper bridge was tested three times. It held 380 g, 310 g and 240 g. What is the mean (average) load it held, in grams?
34. 34.🔍 Which is the odd one out? (a) use a new load each time (b) use the same load (c) repeat each test (d) measure the same way
35. 35.🧪 A paper bridge was tested three times. It held 330 g, 170 g and 310 g. What is the mean (average) load it held, in grams?
36. 36.True or false: to guess, do not measure is good testing. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) repeat each test (d) skip writing results
38. 38.🧪 A paper bridge was tested three times. It held 290 g, 120 g and 160 g. What is the mean (average) load it held, in grams?
39. 39.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
40. 40.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing

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