Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 865 · 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 skip writing results is poor testing. (a) True (b) False
2. 2.True or false: to use a new load each time is good testing. (a) True (b) False
3. 3.True or false: to change lots at once is good testing. (a) False (b) True
4. 4.True or false: to hide a failed test is good testing. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) use a new load each time (d) record every result
6. 6.True or false: to measure the same way is poor testing. (a) False (b) True
7. 7.True or false: to guess, do not measure is good testing. (a) False (b) True
8. 8.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) strengthen the weak part (b) read the challenge rules
9. 9.True or false: to change only one thing is good testing. (a) False (b) True
10. 10.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
11. 11.True or false: to repeat each test is poor testing. (a) True (b) False
12. 12.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to get reliable results (d) to use more paper
13. 13.🔍 Which is the odd one out? (a) skip writing results (b) guess, do not measure (c) repeat each test (d) hide a failed test
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 180 g and design C held 130 g. Which design was the strongest? (a) design C (b) design B (c) design A
15. 15.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
16. 16.True or false: to measure the same way is good testing. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) guess, do not measure (b) measure the same way (c) repeat each test (d) record every result
18. 18.🧪 A paper bridge was tested three times. It held 400 g, 260 g and 360 g. What is the mean (average) load it held, in grams?
19. 19.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
20. 20.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
21. 21.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) sketch three ideas (c) strengthen the weak part (d) load it with coins
22. 22.True or false: to repeat each test is good testing. (a) False (b) True
23. 23.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) read the challenge rules (b) build it with straws
24. 24.True or false: to use the same load is good testing. (a) False (b) True
25. 25.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
26. 26.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) repeat each test (d) hide a failed test
27. 27.🧪 A paper bridge was tested three times. It held 260 g, 220 g and 240 g. What is the mean (average) load it held, in grams?
28. 28.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) test it only once (d) repeat each test
29. 29.🧪 A paper bridge was tested three times. It held 190 g, 110 g and 180 g. What is the mean (average) load it held, in grams?
30. 30.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
31. 31.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) skip writing results (d) change only one thing
32. 32.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) choose and draw one (c) build it with straws (d) read the challenge rules
33. 33.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
34. 34.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) read the challenge rules (b) load it with coins
35. 35.True or false: to change only one thing is poor testing. (a) True (b) False
36. 36.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 70 g. How many more grams did it hold?
37. 37.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) test it only once (d) hide a failed test
38. 38.🔍 Which is the odd one out? (a) change lots at once (b) change only one thing (c) measure the same way (d) use the same load
39. 39.True or false: to skip writing results is good testing. (a) True (b) False
40. 40.🧪 A paper bridge was tested three times. It held 270 g, 250 g and 230 g. What is the mean (average) load it held, in grams?

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