Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 246 · 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.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) the final product (d) an early test model
2. 2.🧪 A paper bridge was tested three times. It held 360 g, 270 g and 360 g. What is the mean (average) load it held, in grams?
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 170 g and design C held 220 g. Which design was the weakest? (a) design A (b) design B (c) design C
4. 4.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
5. 5.True or false: to measure the same way is poor testing. (a) True (b) False
6. 6.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
7. 7.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 350 g and design C held 300 g. Which design was the strongest? (a) design B (b) design A (c) design C
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 290 g and design C held 340 g. Which design was the strongest? (a) design B (b) design A (c) design C
10. 10.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
11. 11.True or false: to change only one thing is poor testing. (a) True (b) False
12. 12.True or false: to measure the same way is good testing. (a) False (b) True
13. 13.True or false: to skip writing results is good testing. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) measure the same way (b) test it only once (c) change only one thing (d) repeat each test
15. 15.🔍 Which is the odd one out? (a) change lots at once (b) use the same load (c) record every result (d) change only one thing
16. 16.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
17. 17.True or false: to hide a failed test is good testing. (a) True (b) False
18. 18.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
19. 19.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to get reliable results (d) to use more paper
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 170 g. Which design was the strongest? (a) design B (b) design A (c) design C
21. 21.🧪 A paper bridge was tested three times. It held 290 g, 140 g and 290 g. What is the mean (average) load it held, in grams?
22. 22.🔍 Which is the odd one out? (a) guess, do not measure (b) measure the same way (c) change only one thing (d) repeat each test
23. 23.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) choose and draw one (c) read the challenge rules (d) build it with straws
24. 24.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
25. 25.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) hide a failed test (d) repeat each test
26. 26.🔢 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
27. 27.True or false: to change lots at once is good testing. (a) True (b) False
28. 28.🧪 A paper bridge was tested three times. It held 210 g, 180 g and 240 g. What is the mean (average) load it held, in grams?
29. 29.🔍 Which is the odd one out? (a) test it only once (b) use a new load each time (c) hide a failed test (d) record every result
30. 30.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
31. 31.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) choose and draw one (b) build it with straws
32. 32.True or false: to use a new load each time is poor testing. (a) False (b) True
33. 33.True or false: to change only one thing is good testing. (a) False (b) True
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 250 g. Which design was the weakest? (a) design B (b) design C (c) design A
35. 35.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) one (d) all of them
36. 36.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
37. 37.True or false: to skip writing results is poor testing. (a) True (b) False
38. 38.🧪 A paper bridge was tested three times. It held 240 g, 120 g and 240 g. What is the mean (average) load it held, in grams?
39. 39.🧪 A paper bridge was tested three times. It held 240 g, 150 g and 270 g. What is the mean (average) load it held, in grams?
40. 40.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules

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