Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 665 · 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) the final product (b) a sales poster (c) a broken part (d) an early test model
2. 2.🔍 Which is the odd one out? (a) change lots at once (b) test it only once (c) hide a failed test (d) record every result
3. 3.🔍 Which is the odd one out? (a) use the same load (b) change lots at once (c) repeat each test (d) record every result
4. 4.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
5. 5.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) record every result (d) test it only once
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the strongest? (a) design B (b) design A (c) design C
7. 7.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) repeat each test (d) hide a failed test
8. 8.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
9. 9.🔢 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
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 260 g. Which design was the weakest? (a) design A (b) design B (c) design C
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 300 g and design C held 350 g. Which design was the strongest? (a) design C (b) design A (c) design B
12. 12.🧪 A paper bridge was tested three times. It held 310 g, 230 g and 360 g. What is the mean (average) load it held, in grams?
13. 13.🧪 A paper bridge was tested three times. It held 360 g, 190 g and 290 g. What is the mean (average) load it held, in grams?
14. 14.🔢 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) choose and draw one
15. 15.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) build it with straws (b) read the challenge rules
16. 16.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) read the challenge rules (c) strengthen the weak part (d) build it with straws
17. 17.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
18. 18.🧪 Why repeat a test three times? (a) to get reliable results (b) the first is wrong (c) it looks busy (d) to use more paper
19. 19.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
20. 20.🧪 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 B (b) design A (c) design C
21. 21.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
22. 22.🧪 A paper bridge was tested three times. It held 270 g, 170 g and 130 g. What is the mean (average) load it held, in grams?
23. 23.🔍 Which is the odd one out? (a) change lots at once (b) skip writing results (c) guess, do not measure (d) measure the same way
24. 24.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
25. 25.True or false: to use the same load is poor testing. (a) False (b) True
26. 26.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
27. 27.True or false: to hide a failed test is good testing. (a) True (b) False
28. 28.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?
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 280 g, 120 g and 170 g. What is the mean (average) load it held, in grams?
31. 31.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) one (d) two
32. 32.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) change lots at once (d) hide a failed test
33. 33.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
34. 34.True or false: to change only one thing is good testing. (a) False (b) True
35. 35.🧪 A paper bridge was tested three times. It held 340 g, 190 g and 280 g. What is the mean (average) load it held, in grams?
36. 36.True or false: to change only one thing is poor testing. (a) False (b) True
37. 37.True or false: to test it only once is poor testing. (a) False (b) True
38. 38.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) strengthen the weak part (c) build it with straws (d) sketch three ideas
39. 39.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) strengthen the weak part (c) choose and draw one (d) build it with straws
40. 40.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas

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