Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 921 · 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.🧪 A paper bridge was tested three times. It held 350 g, 310 g and 300 g. What is the mean (average) load it held, in grams?
2. 2.True or false: to repeat each test is poor testing. (a) False (b) True
3. 3.True or false: to measure the same way is poor testing. (a) True (b) False
4. 4.🧪 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
5. 5.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
6. 6.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) choose and draw one (c) strengthen the weak part (d) load it with coins
7. 7.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
8. 8.🧪 A paper bridge was tested three times. It held 250 g, 220 g and 250 g. What is the mean (average) load it held, in grams?
9. 9.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
10. 10.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
11. 11.🧪 A paper bridge was tested three times. It held 290 g, 220 g and 240 g. What is the mean (average) load it held, in grams?
12. 12.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) use a new load each time (d) change only one thing
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 290 g and design C held 240 g. Which design was the strongest? (a) design A (b) design C (c) design B
14. 14.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
15. 15.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
16. 16.True or false: to hide a failed test is good testing. (a) False (b) True
17. 17.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
18. 18.🧪 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 A (c) design C
19. 19.True or false: to change lots at once is good testing. (a) True (b) False
20. 20.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?
21. 21.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) load it with coins (b) choose and draw one
22. 22.🧪 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
23. 23.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) change lots at once (d) test it only once
24. 24.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) record every result (d) skip writing results
25. 25.True or false: to skip writing results is good testing. (a) True (b) False
26. 26.🧪 A paper bridge was tested three times. It held 420 g, 290 g and 340 g. What is the mean (average) load it held, in grams?
27. 27.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) choose and draw one (b) sketch three ideas
28. 28.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
29. 29.True or false: to hide a failed test is poor testing. (a) True (b) False
30. 30.True or false: to record every result is poor testing. (a) False (b) True
31. 31.True or false: to change only one thing is poor testing. (a) False (b) True
32. 32.🧪 A paper bridge was tested three times. It held 210 g, 150 g and 120 g. What is the mean (average) load it held, in grams?
33. 33.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) use a new load each time (d) change lots at once
34. 34.🧪 A paper bridge was tested three times. It held 240 g, 230 g and 220 g. What is the mean (average) load it held, in grams?
35. 35.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) read the challenge rules (c) build it with straws (d) sketch three ideas
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the strongest? (a) design C (b) design B (c) design A
37. 37.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
38. 38.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) strengthen the weak part (b) load it with coins
39. 39.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) strengthen the weak part (c) read the challenge rules (d) sketch three ideas
40. 40.🧪 A paper bridge was tested three times. It held 220 g, 150 g and 170 g. What is the mean (average) load it held, in grams?

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