Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 168 · 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 test ideas cheaply (b) to avoid testing (c) to sell them at once (d) to decorate a room
2. 2.True or false: to test it only once is poor testing. (a) True (b) False
3. 3.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
4. 4.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) change only one thing (d) change lots at once
5. 5.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) build it with straws (c) sketch three ideas (d) strengthen the weak part
6. 6.🧪 A paper bridge was tested three times. It held 300 g, 180 g and 150 g. What is the mean (average) load it held, in grams?
7. 7.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
8. 8.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) repeat each test (d) record every result
9. 9.True or false: to use a new load each time is good testing. (a) True (b) False
10. 10.True or false: to record every result is good testing. (a) False (b) True
11. 11.True or false: to test it only once is good testing. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) change only one thing (d) guess, do not measure
13. 13.🧪 A paper bridge was tested three times. It held 410 g, 230 g and 290 g. What is the mean (average) load it held, in grams?
14. 14.🧪 A paper bridge was tested three times. It held 330 g, 270 g and 240 g. What is the mean (average) load it held, in grams?
15. 15.True or false: to hide a failed test is good testing. (a) False (b) True
16. 16.True or false: to record every result is poor testing. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) change only one thing (d) change lots at once
18. 18.True or false: to skip writing results is poor testing. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) skip writing results (d) record every result
20. 20.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) one (d) none
21. 21.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) to get reliable results (d) it looks busy
22. 22.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 210 g and design C held 310 g. Which design was the strongest? (a) design A (b) design C (c) design B
24. 24.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
25. 25.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) sketch three ideas (c) read the challenge rules (d) choose and draw one
26. 26.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
27. 27.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?
28. 28.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
29. 29.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
30. 30.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) strengthen the weak part (c) build it with straws (d) choose and draw one
31. 31.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) repeat each test (d) skip writing results
32. 32.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
33. 33.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
34. 34.True or false: to measure the same way is poor testing. (a) True (b) False
35. 35.True or false: to use the same load is good testing. (a) False (b) True
36. 36.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) strengthen the weak part (b) read the challenge rules
37. 37.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) hide a failed test (d) measure the same way
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 130 g and design C held 230 g. Which design was the strongest? (a) design B (b) design C (c) design A
39. 39.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
40. 40.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) sketch three ideas

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