Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 248 · 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 skip writing results? (a) poor testing (b) good testing
2. 2.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) two (d) all of them
3. 3.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
4. 4.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) choose and draw one (c) load it with coins (d) read the challenge rules
5. 5.🔍 Which is the odd one out? (a) use the same load (b) skip writing results (c) change only one thing (d) repeat each test
6. 6.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) repeat each test (d) test it only once
7. 7.🧪 A paper bridge was tested three times. It held 230 g, 110 g and 170 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
9. 9.🧪 A paper bridge was tested three times. It held 230 g, 130 g and 120 g. What is the mean (average) load it held, in grams?
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 130 g and design C held 230 g. Which design was the weakest? (a) design A (b) design B (c) design C
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 270 g. Which design was the strongest? (a) design A (b) design B (c) design C
12. 12.True or false: to guess, do not measure is poor testing. (a) False (b) True
13. 13.True or false: to change only one thing is poor testing. (a) True (b) False
14. 14.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 340 g and design C held 290 g. Which design was the weakest? (a) design A (b) design C (c) design B
16. 16.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
17. 17.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
18. 18.True or false: to test it only once is poor testing. (a) False (b) True
19. 19.True or false: to measure the same way is good testing. (a) True (b) False
20. 20.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 300 g and design C held 350 g. Which design was the strongest? (a) design B (b) design A (c) design C
22. 22.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
23. 23.🧪 A paper bridge was tested three times. It held 380 g, 220 g and 330 g. What is the mean (average) load it held, in grams?
24. 24.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) strengthen the weak part (c) sketch three ideas (d) read the challenge rules
25. 25.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) measure the same way (d) guess, do not measure
26. 26.🧪 A paper bridge was tested three times. It held 340 g, 320 g and 300 g. What is the mean (average) load it held, in grams?
27. 27.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) strengthen the weak part (c) load it with coins (d) read the challenge rules
28. 28.True or false: to repeat each test is good testing. (a) True (b) False
29. 29.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
30. 30.True or false: to use a new load each time is good testing. (a) False (b) True
31. 31.True or false: to record every result is good testing. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) change only one thing (d) use a new load each time
33. 33.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to sell them at once (d) to avoid testing
34. 34.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
35. 35.🧪 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 B (b) design C (c) design A
36. 36.🧪 A paper bridge was tested three times. It held 280 g, 160 g and 130 g. What is the mean (average) load it held, in grams?
37. 37.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) test it only once (d) use the same load
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 320 g. Which design was the strongest? (a) design B (b) design A (c) design C
39. 39.True or false: to hide a failed test is poor testing. (a) True (b) False
40. 40.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing

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