Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 221 · 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) an early test model (c) a sales poster (d) a broken part
2. 2.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) read the challenge rules (b) build it with straws
3. 3.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
4. 4.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
5. 5.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
6. 6.🧪 A paper bridge was tested three times. It held 400 g, 240 g and 320 g. What is the mean (average) load it held, in grams?
7. 7.🧪 A paper bridge was tested three times. It held 290 g, 260 g and 290 g. What is the mean (average) load it held, in grams?
8. 8.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 320 g. Which design was the weakest? (a) design C (b) design A (c) design B
10. 10.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) strengthen the weak part (c) load it with coins (d) read the challenge rules
11. 11.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
12. 12.True or false: to hide a failed test is good testing. (a) False (b) True
13. 13.True or false: to guess, do not measure is good testing. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) use the same load (d) test it only once
15. 15.True or false: to repeat each test is good testing. (a) True (b) False
16. 16.🔢 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) build it with straws (d) strengthen the weak part
17. 17.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
18. 18.True or false: to change lots at once is good testing. (a) False (b) True
19. 19.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
20. 20.🔍 Which is the odd one out? (a) measure the same way (b) change lots at once (c) hide a failed test (d) use a new load each time
21. 21.True or false: to change only one thing is good testing. (a) True (b) False
22. 22.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) build it with straws (c) sketch three ideas (d) read the challenge rules
23. 23.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
24. 24.🔍 Which is the odd one out? (a) record every result (b) change lots at once (c) test it only once (d) use a new load each time
25. 25.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) read the challenge rules (b) choose and draw one
26. 26.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
27. 27.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) choose and draw one
28. 28.True or false: to test it only once is poor testing. (a) False (b) True
29. 29.True or false: to measure the same way is poor testing. (a) True (b) False
30. 30.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) none (d) two
31. 31.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) hide a failed test (d) measure the same way
32. 32.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
33. 33.True or false: to measure the same way is good testing. (a) False (b) True
34. 34.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
35. 35.🔍 Which is the odd one out? (a) record every result (b) guess, do not measure (c) change only one thing (d) use the same load
36. 36.🧪 A paper bridge was tested three times. It held 250 g, 170 g and 150 g. What is the mean (average) load it held, in grams?
37. 37.True or false: to record every result is poor testing. (a) True (b) False
38. 38.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
39. 39.🔢 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
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 320 g and design C held 270 g. Which design was the strongest? (a) design A (b) design B (c) design C

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