Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 161 · 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.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) load it with coins (b) strengthen the weak part
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 340 g and design C held 290 g. Which design was the strongest? (a) design C (b) design B (c) design A
3. 3.True or false: to use the same load is poor testing. (a) False (b) True
4. 4.True or false: to repeat each test is poor testing. (a) False (b) True
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design B (b) design C (c) design A
6. 6.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) build it with straws (b) strengthen the weak part
7. 7.🧪 A paper bridge was tested three times. It held 260 g, 230 g and 230 g. What is the mean (average) load it held, in grams?
8. 8.🔍 Which is the odd one out? (a) test it only once (b) repeat each test (c) hide a failed test (d) guess, do not measure
9. 9.True or false: to change only one thing is good testing. (a) False (b) True
10. 10.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 70 g. How many more grams did it hold?
11. 11.🔍 Which is the odd one out? (a) record every result (b) hide a failed test (c) use a new load each time (d) change lots at once
12. 12.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
13. 13.🧪 A paper bridge was tested three times. It held 220 g, 170 g and 210 g. What is the mean (average) load it held, in grams?
14. 14.True or false: to skip writing results is poor testing. (a) True (b) False
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 160 g. Which design was the weakest? (a) design C (b) design B (c) design A
16. 16.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to decorate a room (d) to test ideas cheaply
17. 17.🧪 A paper bridge was tested three times. It held 270 g, 130 g and 170 g. What is the mean (average) load it held, in grams?
18. 18.True or false: to use a new load each time is poor testing. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) hide a failed test (b) measure the same way (c) record every result (d) change only one thing
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 220 g. Which design was the weakest? (a) design C (b) design B (c) design A
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 290 g and design C held 240 g. Which design was the strongest? (a) design C (b) design A (c) design B
22. 22.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
23. 23.True or false: to change only one thing is poor testing. (a) False (b) True
24. 24.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
25. 25.🧪 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
26. 26.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
27. 27.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
28. 28.🔍 Which is the odd one out? (a) change only one thing (b) test it only once (c) measure the same way (d) repeat each test
29. 29.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
30. 30.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
31. 31.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) sketch three ideas (d) build it with straws
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 390 g. Which design was the strongest? (a) design A (b) design C (c) design B
33. 33.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) choose and draw one (c) load it with coins (d) strengthen the weak part
34. 34.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) strengthen the weak part (b) build it with straws
35. 35.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
36. 36.True or false: to record every result is good testing. (a) False (b) True
37. 37.🧪 A paper bridge was tested three times. It held 200 g, 160 g and 240 g. What is the mean (average) load it held, in grams?
38. 38.🧪 A paper bridge was tested three times. It held 240 g, 100 g and 110 g. What is the mean (average) load it held, in grams?
39. 39.🧪 A paper bridge was tested three times. It held 270 g, 70 g and 170 g. What is the mean (average) load it held, in grams?
40. 40.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) build it with straws (c) choose and draw one (d) read the challenge rules

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