Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 370 · 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.True or false: to skip writing results is poor testing. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) skip writing results (b) measure the same way (c) test it only once (d) use a new load each time
3. 3.🧪 A paper bridge was tested three times. It held 260 g, 90 g and 190 g. What is the mean (average) load it held, in grams?
4. 4.True or false: to measure the same way is poor testing. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) hide a failed test (b) skip writing results (c) test it only once (d) change only one thing
6. 6.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
7. 7.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
8. 8.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 120 g and design C held 220 g. Which design was the weakest? (a) design A (b) design C (c) design B
10. 10.🧪 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
11. 11.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to test ideas cheaply (d) to sell them at once
12. 12.True or false: to use the same load is good testing. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) change lots at once (d) repeat each test
14. 14.🧪 A paper bridge was tested three times. It held 230 g, 100 g and 270 g. What is the mean (average) load it held, in grams?
15. 15.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) strengthen the weak part (b) build it with straws
16. 16.True or false: to repeat each test is good testing. (a) True (b) False
17. 17.🧪 A paper bridge was tested three times. It held 210 g, 150 g and 150 g. What is the mean (average) load it held, in grams?
18. 18.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
19. 19.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
20. 20.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) all of them (d) one
21. 21.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) sketch three ideas (b) strengthen the weak part
22. 22.True or false: to use the same load is poor testing. (a) True (b) False
23. 23.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
24. 24.True or false: to repeat each test is poor testing. (a) True (b) False
25. 25.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
26. 26.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the weakest? (a) design C (b) design B (c) design A
28. 28.True or false: to use a new load each time is poor testing. (a) False (b) True
29. 29.🔢 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) choose and draw one (d) strengthen the weak part
30. 30.🧪 A paper bridge was tested three times. It held 280 g, 150 g and 290 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to measure the same way is good testing. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) skip writing results (d) record every result
33. 33.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
34. 34.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) sketch three ideas (b) load it with coins
35. 35.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) choose and draw one (c) build it with straws (d) load it with coins
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 140 g and design C held 240 g. Which design was the strongest? (a) design C (b) design A (c) design B
37. 37.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) use a new load each time (d) guess, do not measure
38. 38.True or false: to use a new load each time is good testing. (a) False (b) True
39. 39.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
40. 40.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing

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