Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 383 · 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 repeat each test? (a) poor testing (b) good testing
2. 2.True or false: to change only one thing is good testing. (a) True (b) False
3. 3.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) read the challenge rules (c) build it with straws (d) strengthen the weak part
4. 4.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) repeat each test (d) record every result
5. 5.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
6. 6.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
7. 7.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) record every result (d) change lots at once
8. 8.True or false: to measure the same way is good testing. (a) True (b) False
9. 9.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) read the challenge rules (b) sketch three ideas
10. 10.True or false: to use a new load each time is good testing. (a) True (b) False
11. 11.🧪 Why repeat a test three times? (a) to get reliable results (b) it looks busy (c) the first is wrong (d) to use more paper
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the strongest? (a) design A (b) design B (c) design C
13. 13.🧪 A paper bridge was tested three times. It held 300 g, 170 g and 310 g. What is the mean (average) load it held, in grams?
14. 14.🧪 A paper bridge was tested three times. It held 270 g, 180 g and 90 g. What is the mean (average) load it held, in grams?
15. 15.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
16. 16.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
17. 17.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) load it with coins
18. 18.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) sketch three ideas (b) read the challenge rules
19. 19.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
20. 20.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) measure the same way (d) skip writing results
21. 21.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
22. 22.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to sell them at once (d) to test ideas cheaply
23. 23.🔍 Which is the odd one out? (a) test it only once (b) skip writing results (c) measure the same way (d) hide a failed test
24. 24.🧪 A paper bridge was tested three times. It held 380 g, 270 g and 340 g. What is the mean (average) load it held, in grams?
25. 25.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
26. 26.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) strengthen the weak part (c) read the challenge rules (d) sketch three ideas
27. 27.True or false: to repeat each test is good testing. (a) False (b) True
28. 28.🧪 A paper bridge was tested three times. It held 310 g, 210 g and 110 g. What is the mean (average) load it held, in grams?
29. 29.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) load it with coins (c) read the challenge rules (d) sketch three ideas
30. 30.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) repeat each test (d) use a new load each time
31. 31.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
32. 32.True or false: to repeat each test is poor testing. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) repeat each test (d) test it only once
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 120 g. Which design was the weakest? (a) design A (b) design B (c) design C
35. 35.True or false: to record every result is good testing. (a) False (b) True
36. 36.🧪 A paper bridge was tested three times. It held 360 g, 290 g and 370 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 400 g and design C held 300 g. Which design was the strongest? (a) design B (b) design A (c) design C
38. 38.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) use the same load (d) use a new load each time
39. 39.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) load it with coins
40. 40.🧪 A paper bridge was tested three times. It held 200 g, 100 g and 240 g. What is the mean (average) load it held, in grams?

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