Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 400 · 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) record every result (b) guess, do not measure (c) use the same load (d) repeat each test
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 330 g. Which design was the strongest? (a) design B (b) design A (c) design C
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 230 g and design C held 280 g. Which design was the weakest? (a) design B (b) design A (c) design C
4. 4.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
5. 5.True or false: to guess, do not measure is good testing. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) use a new load each time (b) guess, do not measure (c) test it only once (d) use the same load
7. 7.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
8. 8.True or false: to measure the same way is good testing. (a) False (b) True
9. 9.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) the first is wrong (d) to get reliable results
10. 10.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) sketch three ideas (c) strengthen the weak part (d) load it with coins
11. 11.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) load it with coins (c) choose and draw one (d) read the challenge rules
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 350 g and design C held 300 g. Which design was the weakest? (a) design C (b) design B (c) design A
13. 13.🧪 A paper bridge was tested three times. It held 280 g, 200 g and 360 g. What is the mean (average) load it held, in grams?
14. 14.🧪 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 weakest? (a) design C (b) design A (c) design B
15. 15.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) use a new load each time (d) change only one thing
16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 160 g and design C held 210 g. Which design was the weakest? (a) design A (b) design B (c) design C
17. 17.True or false: to measure the same way is poor testing. (a) True (b) False
18. 18.🧪 A paper bridge was tested three times. It held 340 g, 230 g and 390 g. What is the mean (average) load it held, in grams?
19. 19.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
20. 20.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
21. 21.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
22. 22.🔍 Which is the odd one out? (a) use a new load each time (b) change only one thing (c) record every result (d) repeat each test
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 400 g and design C held 350 g. Which design was the weakest? (a) design A (b) design B (c) design C
24. 24.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 350 g and design C held 300 g. Which design was the strongest? (a) design B (b) design A (c) design C
26. 26.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
27. 27.True or false: to change only one thing is poor testing. (a) True (b) False
28. 28.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 330 g. Which design was the weakest? (a) design A (b) design B (c) design C
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design A (b) design B (c) design C
31. 31.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
32. 32.🧪 A paper bridge was tested three times. It held 300 g, 210 g and 300 g. What is the mean (average) load it held, in grams?
33. 33.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) measure the same way (d) record every result
34. 34.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) load it with coins (c) strengthen the weak part (d) build it with straws
35. 35.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to test ideas cheaply (d) to sell them at once
36. 36.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
37. 37.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
38. 38.True or false: to change lots at once is poor testing. (a) True (b) False
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 290 g and design C held 390 g. Which design was the strongest? (a) design A (b) design B (c) design C
40. 40.🔍 Which is the odd one out? (a) record every result (b) hide a failed test (c) use the same load (d) measure the same way

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