Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 988 · 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.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) one (d) two
2. 2.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) choose and draw one (b) load it with coins
3. 3.🔍 Which is the odd one out? (a) change lots at once (b) test it only once (c) hide a failed test (d) repeat each test
4. 4.🧪 A paper bridge was tested three times. It held 180 g, 160 g and 170 g. What is the mean (average) load it held, in grams?
5. 5.🧪 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
6. 6.True or false: to measure the same way is poor testing. (a) False (b) True
7. 7.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) sketch three ideas (c) strengthen the weak part (d) load it with coins
8. 8.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) measure the same way (d) test it only once
9. 9.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
10. 10.🔍 Which is the odd one out? (a) hide a failed test (b) change only one thing (c) skip writing results (d) guess, do not measure
11. 11.🧪 What is a prototype? (a) a broken part (b) the final product (c) an early test model (d) a sales poster
12. 12.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
13. 13.🔍 Which is the odd one out? (a) use the same load (b) change lots at once (c) change only one thing (d) repeat each test
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design C (b) design B (c) design A
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 370 g and design C held 320 g. Which design was the strongest? (a) design A (b) design B (c) design C
16. 16.True or false: to measure the same way is good testing. (a) True (b) False
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 220 g. Which design was the strongest? (a) design B (b) design C (c) design A
18. 18.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
19. 19.🔍 Which is the odd one out? (a) use the same load (b) skip writing results (c) test it only once (d) hide a failed test
20. 20.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
21. 21.🧪 A paper bridge was tested three times. It held 360 g, 230 g and 220 g. What is the mean (average) load it held, in grams?
22. 22.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) hide a failed test (d) measure the same way
23. 23.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
24. 24.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
25. 25.🧪 A paper bridge was tested three times. It held 300 g, 110 g and 190 g. What is the mean (average) load it held, in grams?
26. 26.🔢 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
27. 27.True or false: to hide a failed test is poor testing. (a) False (b) True
28. 28.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
29. 29.🧪 A paper bridge was tested three times. It held 280 g, 100 g and 220 g. What is the mean (average) load it held, in grams?
30. 30.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) load it with coins (c) strengthen the weak part (d) build it with straws
31. 31.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 100 g and design C held 200 g. Which design was the strongest? (a) design A (b) design C (c) design B
33. 33.True or false: to record every result is poor testing. (a) False (b) True
34. 34.True or false: to guess, do not measure is poor testing. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) guess, do not measure (d) record every result
36. 36.🧪 A paper bridge was tested three times. It held 250 g, 160 g and 280 g. What is the mean (average) load it held, in grams?
37. 37.True or false: to test it only once is poor testing. (a) False (b) True
38. 38.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
39. 39.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
40. 40.True or false: to change only one thing is poor testing. (a) True (b) False

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