Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 567 · 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.True or false: to repeat each test is good testing. (a) False (b) True
2. 2.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
3. 3.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
4. 4.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
5. 5.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 140 g and design C held 240 g. Which design was the weakest? (a) design C (b) design A (c) design B
7. 7.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
8. 8.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) it looks busy (d) to get reliable results
9. 9.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
10. 10.True or false: to hide a failed test is good testing. (a) True (b) False
11. 11.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
12. 12.🧪 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 weakest? (a) design C (b) design B (c) design A
13. 13.True or false: to change only one thing is good testing. (a) True (b) False
14. 14.🔢 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
15. 15.True or false: to use a new load each time is good testing. (a) True (b) False
16. 16.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) choose and draw one (b) sketch three ideas
17. 17.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
18. 18.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
19. 19.True or false: to use the same load is poor testing. (a) True (b) False
20. 20.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
21. 21.True or false: to use a new load each time is poor testing. (a) True (b) False
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 330 g. Which design was the weakest? (a) design A (b) design B (c) design C
23. 23.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
24. 24.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to decorate a room (c) to test ideas cheaply (d) to sell them at once
25. 25.🔍 Which is the odd one out? (a) change only one thing (b) hide a failed test (c) measure the same way (d) record every result
26. 26.True or false: to measure the same way is poor testing. (a) False (b) True
27. 27.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) build it with straws (b) read the challenge rules
28. 28.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) strengthen the weak part (b) build it with straws
29. 29.🔍 Which is the odd one out? (a) hide a failed test (b) guess, do not measure (c) use a new load each time (d) measure the same way
30. 30.🔢 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
31. 31.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) two (d) one
32. 32.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) hide a failed test (d) repeat each test
33. 33.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) record every result (d) change lots at once
34. 34.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) load it with coins (c) strengthen the weak part (d) build it with straws
35. 35.🧪 A paper bridge was tested three times. It held 240 g, 120 g and 210 g. What is the mean (average) load it held, in grams?
36. 36.🧪 A paper bridge was tested three times. It held 310 g, 170 g and 150 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
38. 38.🧪 A paper bridge was tested three times. It held 210 g, 140 g and 190 g. What is the mean (average) load it held, in grams?
39. 39.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) measure the same way (d) use the same load
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 340 g and design C held 290 g. Which design was the weakest? (a) design A (b) design B (c) design C

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