Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 720 · 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.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
2. 2.🔢 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
3. 3.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) to get reliable results (d) it looks busy
4. 4.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) choose and draw one (d) read the challenge rules
5. 5.True or false: to repeat each test is good testing. (a) False (b) True
6. 6.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) sketch three ideas (b) read the challenge rules
7. 7.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
8. 8.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
9. 9.True or false: to hide a failed test is poor testing. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) use the same load (d) skip writing results
11. 11.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
12. 12.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) sketch three ideas (c) load it with coins (d) strengthen the weak part
13. 13.🧪 A paper bridge was tested three times. It held 280 g, 250 g and 280 g. What is the mean (average) load it held, in grams?
14. 14.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) sketch three ideas (c) build it with straws (d) strengthen the weak part
15. 15.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to avoid testing (d) to decorate a room
16. 16.True or false: to record every result is poor testing. (a) False (b) True
17. 17.True or false: to guess, do not measure is poor testing. (a) True (b) False
18. 18.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 80 g. How many more grams did it hold?
19. 19.🔢 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
20. 20.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) use a new load each time (d) record every result
21. 21.🧪 A paper bridge was tested three times. It held 310 g, 200 g and 210 g. What is the mean (average) load it held, in grams?
22. 22.🧪 A paper bridge was tested three times. It held 370 g, 340 g and 340 g. What is the mean (average) load it held, in grams?
23. 23.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas
24. 24.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) load it with coins (b) sketch three ideas
25. 25.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) load it with coins (b) choose and draw one
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the weakest? (a) design B (b) design A (c) design C
27. 27.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) read the challenge rules (c) strengthen the weak part (d) choose and draw one
28. 28.🧪 A paper bridge was tested three times. It held 370 g, 270 g and 200 g. What is the mean (average) load it held, in grams?
29. 29.🔢 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
30. 30.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) read the challenge rules (b) strengthen the weak part
31. 31.🧪 A paper bridge was tested three times. It held 310 g, 280 g and 340 g. What is the mean (average) load it held, in grams?
32. 32.True or false: to change lots at once is good testing. (a) True (b) False
33. 33.🧪 A paper bridge was tested three times. It held 170 g, 100 g and 210 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to use a new load each time is poor testing. (a) True (b) False
35. 35.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
36. 36.True or false: to guess, do not measure is good testing. (a) True (b) False
37. 37.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
38. 38.True or false: to change lots at once is poor testing. (a) True (b) False
39. 39.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) choose and draw one (c) build it with straws (d) read the challenge rules
40. 40.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?

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