Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 226 · 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 measure the same way? (a) poor testing (b) good testing
2. 2.🧪 A paper bridge was tested three times. It held 160 g, 130 g and 190 g. What is the mean (average) load it held, in grams?
3. 3.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 470 g. How many more grams did it hold?
4. 4.🔍 Which is the odd one out? (a) repeat each test (b) hide a failed test (c) use the same load (d) change only one thing
5. 5.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
6. 6.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) load it with coins (c) build it with straws (d) sketch three ideas
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 360 g, design B held 310 g and design C held 260 g. Which design was the weakest? (a) design B (b) design A (c) design C
8. 8.🧪 A paper bridge was tested three times. It held 280 g, 190 g and 310 g. What is the mean (average) load it held, in grams?
9. 9.True or false: to test it only once is poor testing. (a) True (b) False
10. 10.True or false: to measure the same way is good testing. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) test it only once (d) measure the same way
12. 12.True or false: to test it only once is good testing. (a) False (b) True
13. 13.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design A (b) design C (c) design B
15. 15.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
16. 16.True or false: to change only one thing is good testing. (a) False (b) True
17. 17.True or false: to change only one thing is poor testing. (a) True (b) False
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 340 g. Which design was the weakest? (a) design A (b) design C (c) design B
19. 19.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
20. 20.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
21. 21.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
22. 22.🧪 A paper bridge was tested three times. It held 230 g, 170 g and 260 g. What is the mean (average) load it held, in grams?
23. 23.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) build it with straws (c) strengthen the weak part (d) read the challenge rules
24. 24.True or false: to change lots at once is good testing. (a) True (b) False
25. 25.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to decorate a room (d) to test ideas cheaply
26. 26.True or false: to use a new load each time is poor testing. (a) False (b) True
27. 27.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
28. 28.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) build it with straws (c) sketch three ideas (d) read the challenge rules
29. 29.True or false: to use a new load each time is good testing. (a) True (b) False
30. 30.🧪 A paper bridge was tested three times. It held 360 g, 250 g and 380 g. What is the mean (average) load it held, in grams?
31. 31.🧪 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
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the weakest? (a) design A (b) design C (c) design B
33. 33.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) build it with straws (c) load it with coins (d) sketch three ideas
34. 34.True or false: to skip writing results is good testing. (a) False (b) True
35. 35.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
36. 36.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) record every result (d) skip writing results
37. 37.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) choose and draw one (b) strengthen the weak part
38. 38.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
39. 39.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
40. 40.🧪 A paper bridge was tested three times. It held 340 g, 240 g and 230 g. What is the mean (average) load it held, in grams?

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