Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 476 · 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.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
2. 2.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
3. 3.🔍 Which is the odd one out? (a) skip writing results (b) use a new load each time (c) record every result (d) hide a failed test
4. 4.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) change lots at once (d) use the same load
5. 5.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
6. 6.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 180 g. Which design was the weakest? (a) design A (b) design B (c) design C
8. 8.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to test ideas cheaply (c) to decorate a room (d) to sell them at once
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design B (b) design C (c) design A
10. 10.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
11. 11.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
12. 12.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) build it with straws (c) choose and draw one (d) load it with coins
13. 13.True or false: to skip writing results is good testing. (a) True (b) False
14. 14.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) one (d) two
15. 15.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) use a new load each time (d) repeat each test
16. 16.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
17. 17.🧪 A paper bridge was tested three times. It held 260 g, 240 g and 280 g. What is the mean (average) load it held, in grams?
18. 18.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) strengthen the weak part (c) sketch three ideas (d) choose and draw one
19. 19.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 90 g. How many more grams did it hold?
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design C (b) design B (c) design A
21. 21.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) strengthen the weak part (b) load it with coins (c) sketch three ideas (d) build it with straws
22. 22.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
23. 23.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
24. 24.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) build it with straws (c) choose and draw one (d) load it with coins
25. 25.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) it looks busy (d) to get reliable results
26. 26.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) build it with straws (c) load it with coins (d) sketch three ideas
27. 27.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) measure the same way (d) use the same load
28. 28.True or false: to use the same load is poor testing. (a) True (b) False
29. 29.True or false: to record every result is good testing. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) use a new load each time (b) use the same load (c) repeat each test (d) change only one thing
31. 31.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
32. 32.True or false: to repeat each test is poor testing. (a) False (b) True
33. 33.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
34. 34.True or false: to repeat each test is good testing. (a) True (b) False
35. 35.🧪 A paper bridge was tested three times. It held 300 g, 280 g and 320 g. What is the mean (average) load it held, in grams?
36. 36.True or false: to use a new load each time is poor testing. (a) False (b) True
37. 37.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
38. 38.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) load it with coins (b) choose and draw one
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design A (b) design C (c) design B
40. 40.🧪 A paper bridge was tested three times. It held 240 g, 120 g and 120 g. What is the mean (average) load it held, in grams?

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