Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 961 · 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.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) hide a failed test (d) test it only once
3. 3.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
4. 4.True or false: to test it only once is good testing. (a) True (b) False
5. 5.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules
6. 6.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 140 g. What is the mean (average) load it held, in grams?
7. 7.🧪 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
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 160 g. Which design was the weakest? (a) design A (b) design B (c) design C
9. 9.True or false: to use a new load each time is poor testing. (a) True (b) False
10. 10.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
11. 11.🧪 A paper bridge was tested three times. It held 390 g, 300 g and 360 g. What is the mean (average) load it held, in grams?
12. 12.🧪 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
13. 13.🧪 A paper bridge was tested three times. It held 200 g, 60 g and 220 g. What is the mean (average) load it held, in grams?
14. 14.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) read the challenge rules (d) load it with coins
15. 15.True or false: to test it only once is poor testing. (a) True (b) False
16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 350 g and design C held 300 g. Which design was the weakest? (a) design B (b) design C (c) design A
17. 17.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) change only one thing (d) hide a failed test
18. 18.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
19. 19.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) read the challenge rules (c) build it with straws (d) choose and draw one
20. 20.🧪 A paper bridge was tested three times. It held 340 g, 230 g and 210 g. What is the mean (average) load it held, in grams?
21. 21.True or false: to change lots at once is good testing. (a) False (b) True
22. 22.True or false: to change lots at once is poor testing. (a) True (b) False
23. 23.🧪 A paper bridge was tested three times. It held 420 g, 240 g and 330 g. What is the mean (average) load it held, in grams?
24. 24.🧪 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 C (b) design A (c) design B
25. 25.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
26. 26.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
27. 27.True or false: to use the same load is good testing. (a) True (b) False
28. 28.🧪 A paper bridge was tested three times. It held 250 g, 70 g and 190 g. What is the mean (average) load it held, in grams?
29. 29.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) choose and draw one (c) build it with straws (d) load it with coins
30. 30.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) use the same load (d) hide a failed test
31. 31.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) use the same load (d) use a new load each time
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 290 g and design C held 340 g. Which design was the weakest? (a) design A (b) design B (c) design C
33. 33.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) record every result (d) change lots at once
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 130 g. Which design was the weakest? (a) design B (b) design C (c) design A
35. 35.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
36. 36.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas
37. 37.True or false: to use the same load is poor testing. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) test it only once (d) repeat each test
39. 39.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) skip writing results (d) change only one thing
40. 40.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing

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