Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 63 · 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 use the same load? (a) poor testing (b) good testing
2. 2.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) the first is wrong (d) it looks busy
3. 3.True or false: to hide a failed test is poor testing. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) use the same load (d) guess, do not measure
5. 5.🧪 A paper bridge was tested three times. It held 230 g, 150 g and 130 g. What is the mean (average) load it held, in grams?
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 360 g, design B held 310 g and design C held 260 g. Which design was the strongest? (a) design B (b) design C (c) design A
7. 7.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 360 g and design C held 310 g. Which design was the strongest? (a) design A (b) design C (c) design B
9. 9.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) one (d) two
10. 10.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
11. 11.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
12. 12.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 360 g. Which design was the weakest? (a) design B (b) design C (c) design A
14. 14.True or false: to skip writing results is good testing. (a) False (b) True
15. 15.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
16. 16.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
17. 17.🧪 A paper bridge was tested three times. It held 360 g, 300 g and 240 g. What is the mean (average) load it held, in grams?
18. 18.True or false: to measure the same way is poor testing. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) test it only once (d) record every result
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the weakest? (a) design A (b) design C (c) design B
21. 21.🔍 Which is the odd one out? (a) use a new load each time (b) repeat each test (c) hide a failed test (d) guess, do not measure
22. 22.🧪 A paper bridge was tested three times. It held 270 g, 230 g and 250 g. What is the mean (average) load it held, in grams?
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 390 g. Which design was the weakest? (a) design A (b) design B (c) design C
24. 24.🧪 A paper bridge was tested three times. It held 270 g, 250 g and 290 g. What is the mean (average) load it held, in grams?
25. 25.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
26. 26.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
27. 27.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
28. 28.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the weakest? (a) design B (b) design C (c) design A
30. 30.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
31. 31.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
32. 32.True or false: to measure the same way is good testing. (a) False (b) True
33. 33.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
34. 34.🔍 Which is the odd one out? (a) use the same load (b) hide a failed test (c) repeat each test (d) record every result
35. 35.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to decorate a room (c) to sell them at once (d) to test ideas cheaply
36. 36.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) sketch three ideas (b) build it with straws
37. 37.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
38. 38.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) guess, do not measure (d) test it only once
39. 39.🧪 A paper bridge was tested three times. It held 230 g, 150 g and 100 g. What is the mean (average) load it held, in grams?
40. 40.🔍 Which is the odd one out? (a) measure the same way (b) change lots at once (c) use the same load (d) repeat each test

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