Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 853 · 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.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to test ideas cheaply (d) to decorate a room
2. 2.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) read the challenge rules (c) sketch three ideas (d) load it with coins
3. 3.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
4. 4.🧪 A paper bridge was tested three times. It held 230 g, 120 g and 100 g. What is the mean (average) load it held, in grams?
5. 5.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
6. 6.True or false: to record every result is good testing. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) change lots at once (d) record every result
8. 8.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
9. 9.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) one (d) two
10. 10.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) test it only once (d) repeat each test
11. 11.🔢 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
12. 12.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
13. 13.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
14. 14.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
15. 15.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) hide a failed test (d) change lots at once
16. 16.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
17. 17.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 180 g. Which design was the weakest? (a) design C (b) design B (c) design A
19. 19.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
20. 20.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 130 g and design C held 180 g. Which design was the strongest? (a) design B (b) design A (c) design C
22. 22.🧪 Why repeat a test three times? (a) to get reliable results (b) the first is wrong (c) to use more paper (d) it looks busy
23. 23.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) skip writing results (d) measure the same way
24. 24.🧪 A paper bridge was tested three times. It held 220 g, 120 g and 110 g. What is the mean (average) load it held, in grams?
25. 25.🧪 A paper bridge was tested three times. It held 260 g, 130 g and 120 g. What is the mean (average) load it held, in grams?
26. 26.True or false: to guess, do not measure is good testing. (a) False (b) True
27. 27.True or false: to change only one thing is poor testing. (a) False (b) True
28. 28.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) strengthen the weak part (c) build it with straws (d) sketch three ideas
29. 29.True or false: to use a new load each time is good testing. (a) True (b) False
30. 30.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
31. 31.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
32. 32.🔢 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
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 380 g, design B held 330 g and design C held 280 g. Which design was the strongest? (a) design C (b) design A (c) design B
34. 34.🧪 A paper bridge was tested three times. It held 230 g, 200 g and 200 g. What is the mean (average) load it held, in grams?
35. 35.🔍 Which is the odd one out? (a) measure the same way (b) hide a failed test (c) skip writing results (d) guess, do not measure
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 160 g. Which design was the weakest? (a) design A (b) design B (c) design C
37. 37.🧪 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 strongest? (a) design A (b) design B (c) design C
38. 38.🔍 Which is the odd one out? (a) use a new load each time (b) guess, do not measure (c) change lots at once (d) change only one thing
39. 39.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) strengthen the weak part (b) choose and draw one
40. 40.🧪 A paper bridge was tested three times. It held 240 g, 140 g and 220 g. What is the mean (average) load it held, in grams?

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