Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 939 · 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.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) guess, do not measure (d) repeat each test
2. 2.🧪 In a fair test, how many things do you change at a time? (a) none (b) all of them (c) one (d) two
3. 3.True or false: to use a new load each time is good testing. (a) False (b) True
4. 4.True or false: to repeat each test is poor testing. (a) True (b) False
5. 5.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
6. 6.True or false: to skip writing results is good testing. (a) True (b) False
7. 7.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) build it with straws (c) read the challenge rules (d) strengthen the weak part
8. 8.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) load it with coins (b) strengthen the weak part
9. 9.🧪 A paper bridge was tested three times. It held 270 g, 170 g and 70 g. What is the mean (average) load it held, in grams?
10. 10.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) load it with coins (c) choose and draw one (d) strengthen the weak part
11. 11.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) record every result (d) change lots at once
12. 12.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) test it only once (d) change only one thing
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 180 g and design C held 230 g. Which design was the strongest? (a) design A (b) design C (c) design B
14. 14.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
15. 15.True or false: to use the same load is good testing. (a) True (b) False
16. 16.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
17. 17.True or false: to hide a failed test is poor testing. (a) True (b) False
18. 18.True or false: to skip writing results is poor testing. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) use a new load each time (b) use the same load (c) skip writing results (d) test it only once
20. 20.🧪 A paper bridge was tested three times. It held 250 g, 160 g and 340 g. What is the mean (average) load it held, in grams?
21. 21.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to test ideas cheaply (d) to decorate a room
22. 22.True or false: to measure the same way is poor testing. (a) False (b) True
23. 23.True or false: to use a new load each time is poor testing. (a) False (b) True
24. 24.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
25. 25.🔍 Which is the odd one out? (a) measure the same way (b) use a new load each time (c) test it only once (d) guess, do not measure
26. 26.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
27. 27.🧪 A paper bridge was tested three times. It held 210 g, 70 g and 200 g. What is the mean (average) load it held, in grams?
28. 28.True or false: to record every result is good testing. (a) True (b) False
29. 29.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
30. 30.True or false: to measure the same way is good testing. (a) True (b) False
31. 31.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
32. 32.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
33. 33.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
34. 34.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
35. 35.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
36. 36.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
37. 37.True or false: to test it only once is good testing. (a) True (b) False
38. 38.🧪 A paper bridge was tested three times. It held 360 g, 300 g and 330 g. What is the mean (average) load it held, in grams?
39. 39.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
40. 40.🧪 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 weakest? (a) design C (b) design A (c) design B

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