Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 7 · 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) measure the same way (b) change only one thing (c) record every result (d) hide a failed test
2. 2.True or false: to use a new load each time is poor testing. (a) False (b) True
3. 3.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
4. 4.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) strengthen the weak part (b) read the challenge rules (c) build it with straws (d) load it with coins
5. 5.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) load it with coins (b) build it with straws
6. 6.True or false: to guess, do not measure is good testing. (a) True (b) False
7. 7.True or false: to hide a failed test is poor testing. (a) True (b) False
8. 8.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
9. 9.True or false: to hide a failed test is good testing. (a) False (b) True
10. 10.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
11. 11.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to use more paper (d) to get reliable results
12. 12.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
13. 13.🧪 A paper bridge was tested three times. It held 300 g, 200 g and 340 g. What is the mean (average) load it held, in grams?
14. 14.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
15. 15.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
16. 16.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) sketch three ideas (c) strengthen the weak part (d) build it with straws
17. 17.🧪 A paper bridge was tested three times. It held 380 g, 210 g and 250 g. What is the mean (average) load it held, in grams?
18. 18.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
19. 19.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) change only one thing (d) skip writing results
20. 20.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) test it only once (d) measure the same way
21. 21.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) choose and draw one (c) strengthen the weak part (d) build it with straws
22. 22.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) use the same load (d) skip writing results
23. 23.🧪 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 weakest? (a) design C (b) design B (c) design A
24. 24.True or false: to repeat each test is poor testing. (a) False (b) True
25. 25.True or false: to repeat each test is good testing. (a) True (b) False
26. 26.🧪 A paper bridge was tested three times. It held 330 g, 180 g and 240 g. What is the mean (average) load it held, in grams?
27. 27.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
28. 28.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
29. 29.🧪 A paper bridge was tested three times. It held 350 g, 340 g and 330 g. What is the mean (average) load it held, in grams?
30. 30.True or false: to measure the same way is poor testing. (a) False (b) True
31. 31.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) build it with straws (b) sketch three ideas
32. 32.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) read the challenge rules (c) load it with coins (d) choose and draw one
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 320 g. Which design was the weakest? (a) design B (b) design C (c) design A
34. 34.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to test ideas cheaply (d) to avoid testing
35. 35.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
36. 36.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
37. 37.🧪 A paper bridge was tested three times. It held 270 g, 90 g and 150 g. What is the mean (average) load it held, in grams?
38. 38.🔢 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
39. 39.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 320 g. Which design was the weakest? (a) design A (b) design C (c) design B

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