Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 34 · 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.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) two (d) none
2. 2.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
3. 3.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
4. 4.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
5. 5.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) repeat each test (d) change only one thing
6. 6.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
7. 7.🧪 A paper bridge was tested three times. It held 220 g, 150 g and 290 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 390 g and design C held 340 g. Which design was the weakest? (a) design A (b) design B (c) design C
9. 9.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
10. 10.True or false: to record every result is poor testing. (a) False (b) True
11. 11.🔢 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) load it with coins (d) build it with straws
12. 12.True or false: to change only one thing is good testing. (a) False (b) True
13. 13.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) build it with straws (c) sketch three ideas (d) strengthen the weak part
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the weakest? (a) design B (b) design C (c) design A
15. 15.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
16. 16.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
17. 17.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) build it with straws (b) load it with coins
18. 18.🧪 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
19. 19.True or false: to test it only once is good testing. (a) False (b) True
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design A (b) design B (c) design C
21. 21.🧪 A paper bridge was tested three times. It held 380 g, 290 g and 260 g. What is the mean (average) load it held, in grams?
22. 22.🧪 A paper bridge was tested three times. It held 370 g, 250 g and 280 g. What is the mean (average) load it held, in grams?
23. 23.🔢 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
24. 24.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) skip writing results (d) measure the same way
25. 25.True or false: to change lots at once is good testing. (a) True (b) False
26. 26.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
27. 27.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “build it with straws”? (a) sketch three ideas (b) build it with straws
28. 28.🧪 A paper bridge was tested three times. It held 270 g, 150 g and 210 g. What is the mean (average) load it held, in grams?
29. 29.🔍 Which is the odd one out? (a) guess, do not measure (b) use a new load each time (c) record every result (d) skip writing results
30. 30.🧪 A paper bridge was tested three times. It held 280 g, 140 g and 180 g. What is the mean (average) load it held, in grams?
31. 31.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) record every result (d) change only one thing
32. 32.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 110 g. What is the mean (average) load it held, in grams?
33. 33.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to get reliable results (d) to use more paper
34. 34.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 170 g. Which design was the strongest? (a) design B (b) design C (c) design A
36. 36.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
37. 37.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
38. 38.True or false: to use the same load is good testing. (a) True (b) False
39. 39.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) sketch three ideas (c) read the challenge rules (d) load it with coins
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 strongest? (a) design B (b) design A (c) design C

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