Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 202 · 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 measure the same way is good testing. (a) False (b) True
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 130 g. Which design was the weakest? (a) design B (b) design C (c) design A
3. 3.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
4. 4.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) one (d) all of them
5. 5.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) test it only once (d) hide a failed test
6. 6.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) skip writing results (d) change only one thing
7. 7.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
8. 8.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
9. 9.True or false: to guess, do not measure is poor testing. (a) False (b) True
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 300 g. Which design was the weakest? (a) design B (b) design A (c) design C
11. 11.True or false: to hide a failed test is poor testing. (a) False (b) True
12. 12.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) the first is wrong (d) it looks busy
13. 13.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
14. 14.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
15. 15.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) a broken part (d) the final product
16. 16.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) build it with straws (c) load it with coins (d) read the challenge rules
17. 17.True or false: to repeat each test is good testing. (a) True (b) False
18. 18.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
19. 19.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
20. 20.True or false: to test it only once is poor testing. (a) False (b) True
21. 21.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
22. 22.True or false: to use the same load is good testing. (a) True (b) False
23. 23.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) build it with straws (b) strengthen the weak part
24. 24.🔍 Which is the odd one out? (a) use a new load each time (b) change only one thing (c) measure the same way (d) repeat each test
25. 25.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) read the challenge rules (c) sketch three ideas (d) strengthen the weak part
26. 26.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
27. 27.🧪 A paper bridge was tested three times. It held 250 g, 80 g and 180 g. What is the mean (average) load it held, in grams?
28. 28.🧪 A paper bridge was tested three times. It held 210 g, 120 g and 120 g. What is the mean (average) load it held, in grams?
29. 29.True or false: to change lots at once is poor testing. (a) False (b) True
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 250 g. Which design was the weakest? (a) design C (b) design B (c) design A
31. 31.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
32. 32.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
33. 33.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
34. 34.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) load it with coins
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 370 g. Which design was the strongest? (a) design B (b) design A (c) design C
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 180 g and design C held 230 g. Which design was the weakest? (a) design B (b) design A (c) design C
37. 37.True or false: to record every result is poor testing. (a) True (b) False
38. 38.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) strengthen the weak part (b) load it with coins
39. 39.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) use the same load (d) guess, do not measure
40. 40.🔍 Which is the odd one out? (a) measure the same way (b) hide a failed test (c) use the same load (d) record every result

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