Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 557 · 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.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 280 g. Which design was the strongest? (a) design C (b) design B (c) design A
3. 3.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) one (d) two
4. 4.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
5. 5.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) repeat each test (d) use a new load each time
6. 6.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) guess, do not measure (d) hide a failed test
7. 7.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) sketch three ideas (c) read the challenge rules (d) build it with straws
8. 8.🧪 A paper bridge was tested three times. It held 390 g, 240 g and 330 g. What is the mean (average) load it held, in grams?
9. 9.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) change lots at once (d) use a new load each time
10. 10.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
11. 11.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) choose and draw one (c) load it with coins (d) build it with straws
12. 12.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) hide a failed test (d) repeat each test
13. 13.🧪 A paper bridge was tested three times. It held 260 g, 150 g and 250 g. What is the mean (average) load it held, in grams?
14. 14.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) test it only once (d) measure the same way
15. 15.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) to use more paper (d) it looks busy
16. 16.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
17. 17.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
18. 18.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
19. 19.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
20. 20.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
21. 21.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
22. 22.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) choose and draw one (d) load it with coins
23. 23.True or false: to record every result is good testing. (a) True (b) False
24. 24.True or false: to change lots at once is good testing. (a) False (b) True
25. 25.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
26. 26.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) skip writing results (d) use the same load
27. 27.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
28. 28.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) strengthen the weak part (c) sketch three ideas (d) build it with straws
29. 29.True or false: to use a new load each time is poor testing. (a) False (b) True
30. 30.🧪 A paper bridge was tested three times. It held 290 g, 190 g and 240 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to use the same load is poor testing. (a) True (b) False
32. 32.🧪 A paper bridge was tested three times. It held 400 g, 230 g and 360 g. What is the mean (average) load it held, in grams?
33. 33.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to decorate a room (d) to test ideas cheaply
34. 34.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
35. 35.🔍 Which is the odd one out? (a) guess, do not measure (b) test it only once (c) change lots at once (d) use the same load
36. 36.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
37. 37.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
38. 38.True or false: to repeat each test is poor testing. (a) True (b) False
39. 39.True or false: to change only one thing is good testing. (a) True (b) False
40. 40.🧪 A paper bridge was tested three times. It held 260 g, 160 g and 180 g. What is the mean (average) load it held, in grams?

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