Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 258 · 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) use the same load (b) repeat each test (c) test it only once (d) change only one thing
2. 2.🧪 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
3. 3.🧪 A paper bridge was tested three times. It held 310 g, 200 g and 330 g. What is the mean (average) load it held, in grams?
4. 4.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) guess, do not measure (d) repeat each test
5. 5.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
6. 6.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) the final product (d) an early test model
7. 7.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
8. 8.🧪 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
9. 9.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
10. 10.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
11. 11.🧪 A paper bridge was tested three times. It held 340 g, 190 g and 280 g. What is the mean (average) load it held, in grams?
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 250 g. Which design was the weakest? (a) design A (b) design B (c) design C
13. 13.True or false: to change lots at once is poor testing. (a) True (b) False
14. 14.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
15. 15.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) strengthen the weak part (c) choose and draw one (d) sketch three ideas
16. 16.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
17. 17.🧪 A paper bridge was tested three times. It held 270 g, 240 g and 210 g. What is the mean (average) load it held, in grams?
18. 18.🔍 Which is the odd one out? (a) use a new load each time (b) record every result (c) use the same load (d) change only one thing
19. 19.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
20. 20.🧪 A paper bridge was tested three times. It held 210 g, 120 g and 150 g. What is the mean (average) load it held, in grams?
21. 21.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) skip writing results (d) use the same load
22. 22.🔍 Which is the odd one out? (a) hide a failed test (b) guess, do not measure (c) skip writing results (d) measure the same way
23. 23.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) read the challenge rules (b) choose and draw one
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 380 g and design C held 280 g. Which design was the weakest? (a) design C (b) design A (c) design B
25. 25.🔢 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) read the challenge rules (d) load it with coins
26. 26.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) use a new load each time (d) change only one thing
27. 27.True or false: to skip writing results is good testing. (a) False (b) True
28. 28.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) strengthen the weak part (b) read the challenge rules
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 130 g and design C held 230 g. Which design was the strongest? (a) design A (b) design B (c) design C
30. 30.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 430 g. How many more grams did it hold?
31. 31.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
32. 32.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
33. 33.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 450 g. How many more grams did it hold?
34. 34.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
35. 35.True or false: to record every result is poor testing. (a) True (b) False
36. 36.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 340 g. Which design was the strongest? (a) design A (b) design B (c) design C
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design A (b) design B (c) design C
39. 39.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to test ideas cheaply (d) to sell them at once
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 300 g and design C held 200 g. Which design was the strongest? (a) design C (b) design A (c) design B

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