Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 339 · 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 is the FIRST step? (a) read the challenge rules (b) sketch three ideas (c) load it with coins (d) choose and draw one
2. 2.True or false: to change lots at once is poor testing. (a) False (b) True
3. 3.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
4. 4.True or false: to change only one thing is poor testing. (a) True (b) False
5. 5.🧪 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 A (c) design C
6. 6.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 440 g. How many more grams did it hold?
7. 7.🔍 Which is the odd one out? (a) record every result (b) hide a failed test (c) repeat each test (d) change only one thing
8. 8.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
9. 9.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
10. 10.🔢 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
11. 11.True or false: to skip writing results is poor testing. (a) False (b) True
12. 12.True or false: to repeat each test is good testing. (a) False (b) True
13. 13.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to decorate a room (c) to avoid testing (d) to sell them at once
14. 14.🧪 A paper bridge was tested three times. It held 260 g, 250 g and 240 g. What is the mean (average) load it held, in grams?
15. 15.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
16. 16.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
17. 17.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
18. 18.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
19. 19.🧪 A paper bridge was tested three times. It held 390 g, 310 g and 260 g. What is the mean (average) load it held, in grams?
20. 20.True or false: to repeat each test is poor testing. (a) False (b) True
21. 21.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 160 g and design C held 210 g. Which design was the strongest? (a) design A (b) design C (c) design B
23. 23.🧪 A paper bridge was tested three times. It held 260 g, 100 g and 120 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 140 g, design B held 190 g and design C held 240 g. Which design was the strongest? (a) design C (b) design B (c) design A
25. 25.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
26. 26.🔍 Which is the odd one out? (a) use a new load each time (b) measure the same way (c) change only one thing (d) record every result
27. 27.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
28. 28.🧪 A paper bridge was tested three times. It held 260 g, 190 g and 180 g. What is the mean (average) load it held, in grams?
29. 29.🔍 Which is the odd one out? (a) change only one thing (b) test it only once (c) change lots at once (d) hide a failed test
30. 30.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 180 g and design C held 130 g. Which design was the weakest? (a) design A (b) design C (c) design B
32. 32.🧪 A paper bridge was tested three times. It held 400 g, 320 g and 270 g. What is the mean (average) load it held, in grams?
33. 33.True or false: to guess, do not measure is good testing. (a) False (b) True
34. 34.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) read the challenge rules (c) choose and draw one (d) strengthen the weak part
35. 35.🧪 A paper bridge was tested three times. It held 350 g, 270 g and 250 g. What is the mean (average) load it held, in grams?
36. 36.True or false: to measure the same way is poor testing. (a) True (b) False
37. 37.True or false: to record every result is good testing. (a) False (b) True
38. 38.🧪 A paper bridge was tested three times. It held 250 g, 210 g and 290 g. What is the mean (average) load it held, in grams?
39. 39.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
40. 40.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) change lots at once (d) guess, do not measure

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