Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 671 · 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.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to avoid testing (d) to decorate a room
2. 2.🔍 Which is the odd one out? (a) use a new load each time (b) use the same load (c) change lots at once (d) hide a failed test
3. 3.True or false: to skip writing results is good testing. (a) True (b) False
4. 4.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to get reliable results (d) to use more paper
5. 5.🔍 Which is the odd one out? (a) change only one thing (b) test it only once (c) measure the same way (d) repeat each test
6. 6.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 300 g. Which design was the strongest? (a) design A (b) design C (c) design B
8. 8.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) build it with straws (c) read the challenge rules (d) choose and draw one
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design C (b) design B (c) design A
10. 10.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
11. 11.True or false: to test it only once is poor testing. (a) True (b) False
12. 12.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 290 g and design C held 240 g. Which design was the weakest? (a) design B (b) design C (c) design A
14. 14.True or false: to change lots at once is poor testing. (a) False (b) True
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 230 g. Which design was the strongest? (a) design C (b) design B (c) design A
16. 16.🔍 Which is the odd one out? (a) skip writing results (b) record every result (c) change lots at once (d) use a new load each time
17. 17.🔍 Which is the odd one out? (a) use a new load each time (b) change only one thing (c) change lots at once (d) hide a failed test
18. 18.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
19. 19.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) one (d) all of them
20. 20.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 490 g. How many more grams did it hold?
21. 21.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) repeat each test (d) change lots at once
22. 22.True or false: to skip writing results is poor testing. (a) False (b) True
23. 23.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
24. 24.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
25. 25.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
26. 26.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) choose and draw one (c) read the challenge rules (d) build it with straws
27. 27.🔢 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
28. 28.True or false: to change only one thing is poor testing. (a) True (b) False
29. 29.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
30. 30.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
31. 31.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
32. 32.True or false: to guess, do not measure is good testing. (a) True (b) False
33. 33.True or false: to repeat each test is good testing. (a) False (b) True
34. 34.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
35. 35.🧪 A paper bridge was tested three times. It held 450 g, 290 g and 310 g. What is the mean (average) load it held, in grams?
36. 36.🧪 A paper bridge was tested three times. It held 300 g, 140 g and 280 g. What is the mean (average) load it held, in grams?
37. 37.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) change only one thing (d) guess, do not measure
38. 38.🧪 A paper bridge was tested three times. It held 310 g, 280 g and 250 g. What is the mean (average) load it held, in grams?
39. 39.🔍 Which is the odd one out? (a) use a new load each time (b) use the same load (c) measure the same way (d) record every result
40. 40.🔍 Which is the odd one out? (a) use a new load each time (b) skip writing results (c) hide a failed test (d) repeat each test

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