Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 710 · 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.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
2. 2.🧪 A paper bridge was tested three times. It held 250 g, 140 g and 270 g. What is the mean (average) load it held, in grams?
3. 3.True or false: to change lots at once is good testing. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) guess, do not measure (b) use the same load (c) measure the same way (d) repeat each test
5. 5.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) build it with straws (c) sketch three ideas (d) strengthen the weak part
6. 6.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) use the same load (d) record every result
7. 7.True or false: to measure the same way is good testing. (a) True (b) False
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 200 g. Which design was the weakest? (a) design C (b) design A (c) design B
9. 9.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) build it with straws (b) choose and draw one
10. 10.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) sketch three ideas (c) build it with straws (d) read the challenge rules
11. 11.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
12. 12.True or false: to guess, do not measure is good testing. (a) True (b) False
13. 13.True or false: to skip writing results is poor testing. (a) False (b) True
14. 14.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 150 g. Which design was the weakest? (a) design B (b) design C (c) design A
16. 16.🧪 A paper bridge was tested three times. It held 330 g, 220 g and 320 g. What is the mean (average) load it held, in grams?
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 220 g and design C held 270 g. Which design was the weakest? (a) design A (b) design C (c) design B
18. 18.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) record every result (d) skip writing results
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design C (b) design A (c) design B
20. 20.True or false: to change only one thing is poor testing. (a) True (b) False
21. 21.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) load it with coins (b) sketch three ideas
22. 22.True or false: to repeat each test is good testing. (a) False (b) True
23. 23.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
24. 24.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
25. 25.🧪 A paper bridge was tested three times. It held 190 g, 120 g and 140 g. What is the mean (average) load it held, in grams?
26. 26.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
27. 27.🔍 Which is the odd one out? (a) hide a failed test (b) measure the same way (c) repeat each test (d) change only one thing
28. 28.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
29. 29.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
30. 30.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
31. 31.🔍 Which is the odd one out? (a) use the same load (b) test it only once (c) use a new load each time (d) hide a failed test
32. 32.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
33. 33.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) strengthen the weak part (b) sketch three ideas
34. 34.🧪 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 weakest? (a) design A (b) design C (c) design B
35. 35.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) choose and draw one (c) strengthen the weak part (d) sketch three ideas
36. 36.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) load it with coins (c) sketch three ideas (d) strengthen the weak part
37. 37.True or false: to repeat each test is poor testing. (a) False (b) True
38. 38.True or false: to guess, do not measure is poor testing. (a) False (b) True
39. 39.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to test ideas cheaply (d) to decorate a room
40. 40.🧪 A paper bridge was tested three times. It held 300 g, 190 g and 350 g. What is the mean (average) load it held, in grams?

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