Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 587 · 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) test it only once (b) use the same load (c) repeat each test (d) record every result
2. 2.🔢 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
3. 3.🧪 A paper bridge was tested three times. It held 220 g, 210 g and 200 g. What is the mean (average) load it held, in grams?
4. 4.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) sketch three ideas (b) strengthen the weak part
5. 5.🔢 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
6. 6.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
7. 7.🧪 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 B (c) design C
8. 8.True or false: to measure the same way is poor testing. (a) True (b) False
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 100 g. Which design was the strongest? (a) design A (b) design C (c) design B
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 330 g. Which design was the strongest? (a) design C (b) design A (c) design B
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 110 g and design C held 210 g. Which design was the weakest? (a) design B (b) design A (c) design C
12. 12.🔢 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
13. 13.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) use the same load (d) skip writing results
14. 14.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
15. 15.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
16. 16.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
17. 17.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 290 g and design C held 390 g. Which design was the weakest? (a) design A (b) design C (c) design B
19. 19.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
20. 20.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
21. 21.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) load it with coins (c) choose and draw one (d) sketch three ideas
22. 22.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
23. 23.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
24. 24.🧪 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?
25. 25.🔍 Which is the odd one out? (a) change lots at once (b) test it only once (c) use a new load each time (d) change only one thing
26. 26.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
27. 27.True or false: to guess, do not measure is good testing. (a) False (b) True
28. 28.🧪 A paper bridge was tested three times. It held 300 g, 140 g and 160 g. What is the mean (average) load it held, in grams?
29. 29.🧪 A paper bridge was tested three times. It held 240 g, 220 g and 230 g. What is the mean (average) load it held, in grams?
30. 30.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
31. 31.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
32. 32.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
33. 33.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) sketch three ideas (c) choose and draw one (d) read the challenge rules
34. 34.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
35. 35.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
36. 36.🔢 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
37. 37.🔢 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
38. 38.🧪 A paper bridge was tested three times. It held 380 g, 240 g and 280 g. What is the mean (average) load it held, in grams?
39. 39.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 200 g and design C held 250 g. Which design was the strongest? (a) design A (b) design B (c) design C

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