Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 985 · 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.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
2. 2.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design A (b) design C (c) design B
4. 4.🧪 What is a prototype? (a) the final product (b) an early test model (c) a sales poster (d) a broken part
5. 5.🧪 A paper bridge was tested three times. It held 360 g, 200 g and 250 g. What is the mean (average) load it held, in grams?
6. 6.🔢 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
7. 7.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to get reliable results (d) to use more paper
8. 8.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
9. 9.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) guess, do not measure (d) measure the same way
10. 10.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
11. 11.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to test ideas cheaply (d) to sell them at once
12. 12.True or false: to change lots at once is poor testing. (a) True (b) False
13. 13.True or false: to repeat each test is poor testing. (a) False (b) True
14. 14.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) sketch three ideas (d) load it with coins
15. 15.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) load it with coins (c) build it with straws (d) sketch three ideas
16. 16.🧪 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 weakest? (a) design C (b) design A (c) design B
17. 17.True or false: to change only one thing is good testing. (a) False (b) True
18. 18.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
19. 19.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) use the same load (d) measure the same way
20. 20.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 110 g. Which design was the weakest? (a) design A (b) design C (c) design B
22. 22.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
23. 23.True or false: to change only one thing is poor testing. (a) True (b) False
24. 24.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
25. 25.🧪 A paper bridge was tested three times. It held 400 g, 300 g and 260 g. What is the mean (average) load it held, in grams?
26. 26.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
27. 27.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) strengthen the weak part (c) load it with coins (d) choose and draw one
28. 28.🔢 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) load it with coins (d) sketch three ideas
29. 29.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
30. 30.True or false: to measure the same way is good testing. (a) True (b) False
31. 31.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
32. 32.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) use the same load (d) record every result
33. 33.🧪 A paper bridge was tested three times. It held 320 g, 230 g and 410 g. What is the mean (average) load it held, in grams?
34. 34.🧪 A paper bridge was tested three times. It held 390 g, 300 g and 270 g. What is the mean (average) load it held, in grams?
35. 35.True or false: to change lots at once is good testing. (a) False (b) True
36. 36.True or false: to use the same load is good testing. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) change lots at once (d) test it only once
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design A (b) design C (c) design B
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 180 g. Which design was the weakest? (a) design A (b) design C (c) design B
40. 40.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) load it with coins (b) sketch three ideas

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