Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 984 · 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.True or false: to guess, do not measure is good testing. (a) False (b) True
2. 2.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
3. 3.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
4. 4.True or false: to test it only once is good testing. (a) False (b) True
5. 5.🔢 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) read the challenge rules (d) build it with straws
6. 6.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) read the challenge rules (b) strengthen the weak part
7. 7.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
8. 8.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) read the challenge rules (b) sketch three ideas
9. 9.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) sketch three ideas
10. 10.🧪 What is a prototype? (a) the final product (b) a sales poster (c) an early test model (d) a broken part
11. 11.True or false: to repeat each test is good testing. (a) False (b) True
12. 12.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?
13. 13.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) guess, do not measure (d) change lots at once
14. 14.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
15. 15.🧪 A paper bridge was tested three times. It held 310 g, 160 g and 280 g. What is the mean (average) load it held, in grams?
16. 16.🔍 Which is the odd one out? (a) use a new load each time (b) repeat each test (c) change only one thing (d) use the same load
17. 17.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) strengthen the weak part (c) choose and draw one (d) build it with straws
18. 18.True or false: to use a new load each time is good testing. (a) False (b) True
19. 19.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the weakest? (a) design A (b) design C (c) design B
21. 21.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) it looks busy (d) the first is wrong
22. 22.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
23. 23.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
24. 24.True or false: to test it only once is poor testing. (a) False (b) True
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 220 g and design C held 270 g. Which design was the strongest? (a) design C (b) design B (c) design A
26. 26.True or false: to change only one thing is poor testing. (a) True (b) False
27. 27.True or false: to use a new load each time is poor testing. (a) False (b) True
28. 28.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
29. 29.🧪 A paper bridge was tested three times. It held 210 g, 200 g and 190 g. What is the mean (average) load it held, in grams?
30. 30.True or false: to measure the same way is good testing. (a) True (b) False
31. 31.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to test ideas cheaply (d) to decorate a room
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 390 g and design C held 290 g. Which design was the strongest? (a) design B (b) design C (c) design A
33. 33.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) sketch three ideas (b) load it with coins
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 190 g. Which design was the weakest? (a) design A (b) design B (c) design C
35. 35.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
36. 36.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
37. 37.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
38. 38.🔍 Which is the odd one out? (a) skip writing results (b) guess, do not measure (c) test it only once (d) use the same load
39. 39.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
40. 40.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) use a new load each time (d) change lots at once

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