Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 160 · 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.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
2. 2.🔍 Which is the odd one out? (a) record every result (b) test it only once (c) change only one thing (d) repeat each test
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 270 g. Which design was the weakest? (a) design B (b) design C (c) design A
4. 4.True or false: to change lots at once is good testing. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) test it only once (d) hide a failed test
6. 6.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 340 g. Which design was the strongest? (a) design B (b) design A (c) design C
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 380 g. Which design was the weakest? (a) design C (b) design A (c) design B
9. 9.🔍 Which is the odd one out? (a) measure the same way (b) test it only once (c) hide a failed test (d) guess, do not measure
10. 10.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) choose and draw one (c) strengthen the weak part (d) read the challenge rules
11. 11.True or false: to use the same load is good testing. (a) False (b) True
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 110 g and design C held 160 g. Which design was the strongest? (a) design A (b) design B (c) design C
13. 13.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
14. 14.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
15. 15.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
16. 16.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
17. 17.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
18. 18.🧪 A paper bridge was tested three times. It held 280 g, 130 g and 160 g. What is the mean (average) load it held, in grams?
19. 19.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
20. 20.🧪 A paper bridge was tested three times. It held 280 g, 160 g and 130 g. What is the mean (average) load it held, in grams?
21. 21.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 80 g. How many more grams did it hold?
22. 22.True or false: to skip writing results is good testing. (a) True (b) False
23. 23.🧪 A paper bridge was tested three times. It held 260 g, 150 g and 130 g. What is the mean (average) load it held, in grams?
24. 24.🧪 A paper bridge was tested three times. It held 320 g, 160 g and 180 g. What is the mean (average) load it held, in grams?
25. 25.True or false: to change only one thing is good testing. (a) False (b) True
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 140 g. Which design was the weakest? (a) design C (b) design B (c) design A
27. 27.True or false: to hide a failed test is poor testing. (a) True (b) False
28. 28.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) sketch three ideas (b) read the challenge rules
29. 29.🧪 A paper bridge was tested three times. It held 270 g, 220 g and 320 g. What is the mean (average) load it held, in grams?
30. 30.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) test it only once (d) change only one thing
31. 31.🔍 Which is the odd one out? (a) guess, do not measure (b) record every result (c) repeat each test (d) change only one thing
32. 32.🧪 A paper bridge was tested three times. It held 160 g, 120 g and 200 g. What is the mean (average) load it held, in grams?
33. 33.🧪 A paper bridge was tested three times. It held 350 g, 170 g and 260 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to change lots at once is poor testing. (a) False (b) True
35. 35.🧪 A paper bridge was tested three times. It held 350 g, 260 g and 410 g. What is the mean (average) load it held, in grams?
36. 36.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
37. 37.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
38. 38.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to sell them at once (d) to avoid testing
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 250 g. Which design was the strongest? (a) design B (b) design C (c) design A
40. 40.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?

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