Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 801 · 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) good testing (b) poor testing
2. 2.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
3. 3.True or false: to change lots at once is poor testing. (a) True (b) False
4. 4.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
5. 5.🧪 A paper bridge was tested three times. It held 230 g, 90 g and 220 g. What is the mean (average) load it held, in grams?
6. 6.🔍 Which is the odd one out? (a) repeat each test (b) guess, do not measure (c) change only one thing (d) use the same load
7. 7.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
8. 8.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
9. 9.True or false: to change lots at once is good testing. (a) False (b) True
10. 10.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) load it with coins (c) choose and draw one (d) read the challenge rules
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 weakest? (a) design A (b) design C (c) design B
12. 12.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) build it with straws (c) strengthen the weak part (d) choose and draw one
13. 13.🔍 Which is the odd one out? (a) use a new load each time (b) hide a failed test (c) change lots at once (d) measure the same way
14. 14.🔍 Which is the odd one out? (a) use the same load (b) guess, do not measure (c) change lots at once (d) skip writing results
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 190 g and design C held 240 g. Which design was the strongest? (a) design B (b) design C (c) design A
16. 16.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) record every result (d) use the same load
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 220 g. Which design was the strongest? (a) design A (b) design C (c) design B
18. 18.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
19. 19.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
20. 20.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
21. 21.True or false: to repeat each test is poor testing. (a) True (b) False
22. 22.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) build it with straws (b) choose and draw one
23. 23.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to decorate a room (d) to test ideas cheaply
24. 24.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) change lots at once (d) use the same load
25. 25.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
26. 26.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
27. 27.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) load it with coins (b) strengthen the weak part
28. 28.True or false: to use the same load is poor testing. (a) True (b) False
29. 29.True or false: to guess, do not measure is poor testing. (a) False (b) True
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 230 g and design C held 280 g. Which design was the weakest? (a) design B (b) design A (c) design C
31. 31.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
32. 32.🧪 A paper bridge was tested three times. It held 360 g, 280 g and 200 g. What is the mean (average) load it held, in grams?
33. 33.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) hide a failed test (d) measure the same way
34. 34.True or false: to record every result is poor testing. (a) True (b) False
35. 35.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) build it with straws (c) choose and draw one (d) strengthen the weak part
36. 36.True or false: to hide a failed test is poor testing. (a) False (b) True
37. 37.🧪 A paper bridge was tested three times. It held 350 g, 250 g and 240 g. What is the mean (average) load it held, in grams?
38. 38.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
39. 39.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
40. 40.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) load it with coins (c) sketch three ideas (d) choose and draw one

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