Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 552 · 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 hide a failed test? (a) poor testing (b) good testing
2. 2.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
3. 3.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) all of them (d) one
4. 4.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
5. 5.🔍 Which is the odd one out? (a) hide a failed test (b) record every result (c) skip writing results (d) use a new load each time
6. 6.🧪 A paper bridge was tested three times. It held 350 g, 240 g and 370 g. What is the mean (average) load it held, in grams?
7. 7.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 300 g and design C held 250 g. Which design was the weakest? (a) design C (b) design B (c) design A
9. 9.True or false: to test it only once is poor testing. (a) True (b) False
10. 10.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) sketch three ideas (c) load it with coins (d) strengthen the weak part
11. 11.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) read the challenge rules (b) sketch three ideas
12. 12.🧪 A paper bridge was tested three times. It held 200 g, 110 g and 170 g. What is the mean (average) load it held, in grams?
13. 13.True or false: to guess, do not measure is poor testing. (a) True (b) False
14. 14.True or false: to use a new load each time is poor testing. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) change only one thing (d) repeat each test
16. 16.True or false: to use the same load is poor testing. (a) True (b) False
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 300 g. Which design was the strongest? (a) design A (b) design C (c) design B
18. 18.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) strengthen the weak part (b) read the challenge rules
19. 19.True or false: to test it only once is good testing. (a) False (b) True
20. 20.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
21. 21.True or false: to skip writing results is good testing. (a) True (b) False
22. 22.🧪 A paper bridge was tested three times. It held 270 g, 150 g and 330 g. What is the mean (average) load it held, in grams?
23. 23.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
24. 24.🧪 A paper bridge was tested three times. It held 210 g, 120 g and 120 g. What is the mean (average) load it held, in grams?
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the strongest? (a) design B (b) design A (c) design C
26. 26.True or false: to measure the same way is good testing. (a) False (b) True
27. 27.True or false: to change lots at once is poor testing. (a) True (b) False
28. 28.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
29. 29.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
30. 30.🧪 A paper bridge was tested three times. It held 280 g, 170 g and 90 g. What is the mean (average) load it held, in grams?
31. 31.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) it looks busy (d) to use more paper
32. 32.True or false: to change only one thing is good testing. (a) False (b) True
33. 33.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) read the challenge rules (b) strengthen the weak part
34. 34.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
35. 35.🔢 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
36. 36.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) use a new load each time (d) repeat each test
37. 37.🧪 A paper bridge was tested three times. It held 270 g, 140 g and 310 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 280 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design B (b) design C (c) design A
39. 39.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) load it with coins (b) strengthen the weak part
40. 40.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) load it with coins (b) sketch three ideas

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