Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 724 · 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.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) change only one thing (d) measure the same way
2. 2.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) test it only once (d) measure the same way
3. 3.True or false: to skip writing results is good testing. (a) True (b) False
4. 4.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
5. 5.True or false: to change only one thing is poor testing. (a) False (b) True
6. 6.🧪 A paper bridge was tested three times. It held 400 g, 290 g and 240 g. What is the mean (average) load it held, in grams?
7. 7.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
8. 8.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
9. 9.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
10. 10.True or false: to skip writing results is poor testing. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) use a new load each time (b) change lots at once (c) hide a failed test (d) use the same load
12. 12.🧪 A paper bridge was tested three times. It held 390 g, 220 g and 290 g. What is the mean (average) load it held, in grams?
13. 13.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
14. 14.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) guess, do not measure (d) hide a failed test
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 390 g. Which design was the strongest? (a) design B (b) design C (c) design A
16. 16.🔢 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
17. 17.🔢 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
18. 18.🧪 A paper bridge was tested three times. It held 390 g, 250 g and 410 g. What is the mean (average) load it held, in grams?
19. 19.🔍 Which is the odd one out? (a) hide a failed test (b) change lots at once (c) test it only once (d) change only one thing
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 380 g. Which design was the weakest? (a) design B (b) design A (c) design C
21. 21.True or false: to test it only once is good testing. (a) True (b) False
22. 22.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
23. 23.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) two (d) all of them
24. 24.True or false: to guess, do not measure is poor testing. (a) False (b) True
25. 25.🧪 A paper bridge was tested three times. It held 230 g, 160 g and 240 g. What is the mean (average) load it held, in grams?
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 330 g and design C held 280 g. Which design was the strongest? (a) design B (b) design C (c) design A
27. 27.True or false: to hide a failed test is poor testing. (a) True (b) False
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 150 g and design C held 200 g. Which design was the weakest? (a) design A (b) design B (c) design C
29. 29.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
30. 30.🧪 A paper bridge was tested three times. It held 210 g, 130 g and 230 g. What is the mean (average) load it held, in grams?
31. 31.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 390 g. Which design was the weakest? (a) design A (b) design C (c) design B
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 120 g. Which design was the weakest? (a) design C (b) design A (c) design B
34. 34.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) sketch three ideas (c) load it with coins (d) strengthen the weak part
35. 35.True or false: to record every result is good testing. (a) True (b) False
36. 36.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) build it with straws
37. 37.🔢 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
38. 38.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
39. 39.🧪 A paper bridge was tested three times. It held 310 g, 210 g and 290 g. What is the mean (average) load it held, in grams?
40. 40.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) choose and draw one (c) load it with coins (d) build it with straws

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