Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 195 · 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 only one thing? (a) poor testing (b) good testing
2. 2.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) choose and draw one (d) load it with coins
3. 3.🧪 A paper bridge was tested three times. It held 210 g, 150 g and 90 g. What is the mean (average) load it held, in grams?
4. 4.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) all of them (d) two
5. 5.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
6. 6.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) choose and draw one
7. 7.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
8. 8.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to avoid testing (d) to decorate a room
9. 9.True or false: to test it only once is good testing. (a) False (b) True
10. 10.🧪 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?
11. 11.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
12. 12.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
13. 13.🧪 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 strongest? (a) design B (b) design A (c) design C
14. 14.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
15. 15.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) strengthen the weak part (c) sketch three ideas (d) read the challenge rules
16. 16.True or false: to change lots at once is good testing. (a) False (b) True
17. 17.True or false: to hide a failed test is good testing. (a) True (b) False
18. 18.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
19. 19.🔍 Which is the odd one out? (a) measure the same way (b) guess, do not measure (c) skip writing results (d) hide a failed test
20. 20.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
21. 21.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
22. 22.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
23. 23.🧪 A paper bridge was tested three times. It held 220 g, 130 g and 130 g. What is the mean (average) load it held, in grams?
24. 24.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
25. 25.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) use a new load each time (d) record every result
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 190 g. Which design was the strongest? (a) design B (b) design A (c) design C
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 170 g and design C held 220 g. Which design was the strongest? (a) design C (b) design B (c) design A
28. 28.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
29. 29.True or false: to use a new load each time is poor testing. (a) True (b) False
30. 30.True or false: to guess, do not measure is good testing. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) hide a failed test (b) measure the same way (c) change only one thing (d) repeat each test
32. 32.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) measure the same way (d) test it only once
33. 33.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
34. 34.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 100 g and design C held 200 g. Which design was the weakest? (a) design B (b) design C (c) design A
36. 36.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) choose and draw one (b) strengthen the weak part
37. 37.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) repeat each test (d) measure the same way
38. 38.🧪 A paper bridge was tested three times. It held 260 g, 100 g and 150 g. What is the mean (average) load it held, in grams?
39. 39.🔍 Which is the odd one out? (a) guess, do not measure (b) hide a failed test (c) record every result (d) test it only once
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the strongest? (a) design C (b) design B (c) design A

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