Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 866 · 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) use a new load each time (b) use the same load (c) repeat each test (d) record every result
2. 2.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
3. 3.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
4. 4.True or false: to repeat each test is good testing. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) skip writing results (b) use the same load (c) measure the same way (d) change only one thing
6. 6.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
7. 7.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
8. 8.True or false: to hide a failed test is good testing. (a) True (b) False
9. 9.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) load it with coins (c) choose and draw one (d) strengthen the weak part
10. 10.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) change lots at once (d) use the same load
11. 11.🔍 Which is the odd one out? (a) change lots at once (b) test it only once (c) record every result (d) skip writing results
12. 12.True or false: to skip writing results is good testing. (a) False (b) True
13. 13.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) read the challenge rules (c) build it with straws (d) strengthen the weak part
14. 14.🔢 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
15. 15.🧪 A paper bridge was tested three times. It held 410 g, 270 g and 340 g. What is the mean (average) load it held, in grams?
16. 16.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
17. 17.🔍 Which is the odd one out? (a) use a new load each time (b) hide a failed test (c) repeat each test (d) test it only once
18. 18.True or false: to skip writing results is poor testing. (a) True (b) False
19. 19.🧪 A paper bridge was tested three times. It held 240 g, 220 g and 260 g. What is the mean (average) load it held, in grams?
20. 20.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) to get reliable results (d) the first is wrong
21. 21.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
22. 22.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?
23. 23.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
24. 24.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) test it only once (d) measure the same way
25. 25.🧪 A paper bridge was tested three times. It held 340 g, 250 g and 370 g. What is the mean (average) load it held, in grams?
26. 26.🧪 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 strongest? (a) design A (b) design C (c) design B
27. 27.🧪 A paper bridge was tested three times. It held 320 g, 260 g and 290 g. What is the mean (average) load it held, in grams?
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 210 g and design C held 160 g. Which design was the strongest? (a) design A (b) design C (c) design B
29. 29.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) choose and draw one (c) strengthen the weak part (d) load it with coins
30. 30.True or false: to guess, do not measure is good testing. (a) False (b) True
31. 31.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) build it with straws (c) load it with coins (d) read the challenge rules
32. 32.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
33. 33.True or false: to use a new load each time is good testing. (a) False (b) True
34. 34.🧪 A paper bridge was tested three times. It held 400 g, 290 g and 270 g. What is the mean (average) load it held, in grams?
35. 35.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
36. 36.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) two (d) one
37. 37.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
38. 38.True or false: to use the same load is poor testing. (a) False (b) True
39. 39.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
40. 40.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) hide a failed test (d) repeat each test

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