Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 170 · 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) an early test model (c) the final product (d) a broken part
2. 2.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) use the same load (d) record every result
3. 3.🧪 A paper bridge was tested three times. It held 230 g, 210 g and 190 g. What is the mean (average) load it held, in grams?
4. 4.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) sketch three ideas (b) build it with straws
5. 5.True or false: to measure the same way is good testing. (a) False (b) True
6. 6.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) read the challenge rules (c) strengthen the weak part (d) build it with straws
7. 7.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
8. 8.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) load it with coins (c) strengthen the weak part (d) build it with straws
9. 9.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) test it only once (d) use the same load
10. 10.🔍 Which is the odd one out? (a) measure the same way (b) skip writing results (c) use the same load (d) change only one thing
11. 11.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) it looks busy (d) to use more paper
12. 12.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) sketch three ideas (c) strengthen the weak part (d) read the challenge rules
13. 13.🧪 A paper bridge was tested three times. It held 410 g, 280 g and 360 g. What is the mean (average) load it held, in grams?
14. 14.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) none (d) one
15. 15.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
16. 16.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to test ideas cheaply (d) to decorate a room
17. 17.True or false: to test it only once is good testing. (a) True (b) False
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 210 g and design C held 160 g. Which design was the weakest? (a) design C (b) design B (c) design A
19. 19.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 330 g. Which design was the strongest? (a) design B (b) design A (c) design C
21. 21.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 230 g. Which design was the strongest? (a) design B (b) design C (c) design A
23. 23.🧪 A paper bridge was tested three times. It held 380 g, 230 g and 350 g. What is the mean (average) load it held, in grams?
24. 24.True or false: to skip writing results is poor testing. (a) True (b) False
25. 25.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
26. 26.🔍 Which is the odd one out? (a) hide a failed test (b) change only one thing (c) repeat each test (d) measure the same way
27. 27.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) build it with straws (c) sketch three ideas (d) load it with coins
28. 28.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
29. 29.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) strengthen the weak part (b) build it with straws
30. 30.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
31. 31.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
32. 32.True or false: to repeat each test is poor testing. (a) False (b) True
33. 33.True or false: to guess, do not measure is good testing. (a) False (b) True
34. 34.True or false: to measure the same way is poor testing. (a) True (b) False
35. 35.True or false: to use the same load is poor testing. (a) False (b) True
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 360 g. Which design was the weakest? (a) design A (b) design C (c) design B
37. 37.True or false: to use a new load each time is good testing. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) use the same load (d) change lots at once
39. 39.🧪 A paper bridge was tested three times. It held 380 g, 210 g and 310 g. What is the mean (average) load it held, in grams?
40. 40.🧪 A paper bridge was tested three times. It held 270 g, 90 g and 180 g. What is the mean (average) load it held, in grams?

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