Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 583 · 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: “sketch three ideas” or “strengthen the weak part”? (a) sketch three ideas (b) strengthen the weak part
2. 2.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) one (d) two
3. 3.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) load it with coins (b) sketch three ideas
4. 4.🧪 A paper bridge was tested three times. It held 310 g, 280 g and 280 g. What is the mean (average) load it held, in grams?
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 300 g. Which design was the strongest? (a) design C (b) design B (c) design A
6. 6.True or false: to use the same load is poor testing. (a) True (b) False
7. 7.🧪 A paper bridge was tested three times. It held 290 g, 120 g and 160 g. What is the mean (average) load it held, in grams?
8. 8.🔍 Which is the odd one out? (a) use the same load (b) repeat each test (c) change lots at once (d) change only one thing
9. 9.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) it looks busy (d) to get reliable results
10. 10.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
11. 11.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
12. 12.🧪 A paper bridge was tested three times. It held 360 g, 280 g and 350 g. What is the mean (average) load it held, in grams?
13. 13.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) hide a failed test (d) measure the same way
14. 14.🔍 Which is the odd one out? (a) use the same load (b) test it only once (c) change lots at once (d) guess, do not measure
15. 15.🔢 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
16. 16.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
17. 17.True or false: to test it only once is poor testing. (a) True (b) False
18. 18.🧪 A paper bridge was tested three times. It held 260 g, 220 g and 240 g. What is the mean (average) load it held, in grams?
19. 19.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
20. 20.True or false: to record every result is good testing. (a) True (b) False
21. 21.True or false: to guess, do not measure is good testing. (a) True (b) False
22. 22.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
23. 23.🔍 Which is the odd one out? (a) measure the same way (b) change lots at once (c) hide a failed test (d) use a new load each time
24. 24.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
25. 25.🔍 Which is the odd one out? (a) change only one thing (b) guess, do not measure (c) change lots at once (d) use a new load each time
26. 26.True or false: to repeat each test is poor testing. (a) True (b) False
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 390 g and design C held 290 g. Which design was the weakest? (a) design B (b) design A (c) design C
28. 28.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) measure the same way (d) change only one thing
29. 29.True or false: to skip writing results is good testing. (a) False (b) True
30. 30.🧪 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 C (b) design A (c) design B
31. 31.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) use the same load (d) skip writing results
32. 32.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to test ideas cheaply (d) to decorate a room
33. 33.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
34. 34.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
35. 35.True or false: to change lots at once is poor testing. (a) False (b) True
36. 36.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
37. 37.🧪 A paper bridge was tested three times. It held 190 g, 160 g and 190 g. What is the mean (average) load it held, in grams?
38. 38.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
39. 39.🔢 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
40. 40.True or false: to guess, do not measure is poor testing. (a) True (b) False

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