Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 32 · 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 avoid testing (b) to test ideas cheaply (c) to sell them at once (d) to decorate a room
2. 2.True or false: to hide a failed test is poor testing. (a) True (b) False
3. 3.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 340 g and design C held 290 g. Which design was the strongest? (a) design B (b) design C (c) design A
5. 5.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the weakest? (a) design C (b) design B (c) design A
7. 7.True or false: to hide a failed test is good testing. (a) True (b) False
8. 8.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
9. 9.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
10. 10.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) change only one thing (d) record every result
11. 11.True or false: to change lots at once is poor testing. (a) True (b) False
12. 12.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
13. 13.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 430 g. How many more grams did it hold?
14. 14.🧪 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
15. 15.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) build it with straws (b) load it with coins
16. 16.True or false: to measure the same way is good testing. (a) True (b) False
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the strongest? (a) design C (b) design B (c) design A
18. 18.True or false: to use the same load is poor testing. (a) False (b) True
19. 19.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
20. 20.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) build it with straws (d) choose and draw one
21. 21.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
22. 22.🧪 A paper bridge was tested three times. It held 270 g, 230 g and 280 g. What is the mean (average) load it held, in grams?
23. 23.True or false: to record every result is good testing. (a) False (b) True
24. 24.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
25. 25.True or false: to repeat each test is poor testing. (a) False (b) True
26. 26.🧪 A paper bridge was tested three times. It held 340 g, 220 g and 400 g. What is the mean (average) load it held, in grams?
27. 27.🔢 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
28. 28.True or false: to use a new load each time is good testing. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) change lots at once (d) use the same load
30. 30.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
31. 31.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
32. 32.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) read the challenge rules (c) strengthen the weak part (d) build it with straws
33. 33.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) load it with coins (c) strengthen the weak part (d) read the challenge rules
34. 34.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 90 g. How many more grams did it hold?
35. 35.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
36. 36.🔍 Which is the odd one out? (a) skip writing results (b) use the same load (c) measure the same way (d) change only one thing
37. 37.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) hide a failed test (d) measure the same way
38. 38.🧪 A paper bridge was tested three times. It held 310 g, 240 g and 320 g. What is the mean (average) load it held, in grams?
39. 39.True or false: to record every result is poor testing. (a) True (b) False
40. 40.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing

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