Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 936 · 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) test it only once (b) record every result (c) hide a failed test (d) use a new load each time
2. 2.🧪 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
3. 3.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
4. 4.🧪 A paper bridge was tested three times. It held 370 g, 230 g and 270 g. What is the mean (average) load it held, in grams?
5. 5.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
6. 6.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
7. 7.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) two (d) one
8. 8.🔍 Which is the odd one out? (a) skip writing results (b) use a new load each time (c) change lots at once (d) repeat each test
9. 9.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
10. 10.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) hide a failed test (d) repeat each test
11. 11.🔍 Which is the odd one out? (a) hide a failed test (b) measure the same way (c) change lots at once (d) test it only once
12. 12.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) build it with straws (b) load it with coins
13. 13.🧪 A paper bridge was tested three times. It held 330 g, 300 g and 270 g. What is the mean (average) load it held, in grams?
14. 14.True or false: to skip writing results is good testing. (a) True (b) False
15. 15.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
16. 16.🧪 A paper bridge was tested three times. It held 210 g, 150 g and 120 g. What is the mean (average) load it held, in grams?
17. 17.True or false: to measure the same way is good testing. (a) True (b) False
18. 18.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
19. 19.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) record every result (d) repeat each test
20. 20.True or false: to use a new load each time is good testing. (a) False (b) True
21. 21.🧪 A paper bridge was tested three times. It held 290 g, 260 g and 290 g. What is the mean (average) load it held, in grams?
22. 22.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
23. 23.True or false: to record every result is good testing. (a) False (b) True
24. 24.True or false: to hide a failed test is poor testing. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) use the same load (b) skip writing results (c) change only one thing (d) measure the same way
26. 26.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) measure the same way (d) change lots at once
27. 27.True or false: to test it only once is good testing. (a) False (b) True
28. 28.🧪 A paper bridge was tested three times. It held 330 g, 260 g and 250 g. What is the mean (average) load it held, in grams?
29. 29.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
30. 30.🧪 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
31. 31.True or false: to guess, do not measure is good testing. (a) True (b) False
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 150 g and design C held 200 g. Which design was the weakest? (a) design A (b) design C (c) design B
33. 33.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) use a new load each time (d) change lots at once
34. 34.True or false: to repeat each test is poor testing. (a) True (b) False
35. 35.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
36. 36.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) read the challenge rules (c) choose and draw one (d) strengthen the weak part
37. 37.🧪 A paper bridge was tested three times. It held 440 g, 350 g and 260 g. What is the mean (average) load it held, in grams?
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 320 g. Which design was the weakest? (a) design B (b) design A (c) design C
39. 39.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) build it with straws (b) read the challenge rules
40. 40.True or false: to use the same load is good testing. (a) True (b) False

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