Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 603 · 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 230 g, 140 g and 230 g. What is the mean (average) load it held, in grams?
2. 2.🧪 A paper bridge was tested three times. It held 450 g, 270 g and 330 g. What is the mean (average) load it held, in grams?
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 280 g. Which design was the strongest? (a) design C (b) design B (c) design A
4. 4.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
5. 5.🧪 Why repeat a test three times? (a) to get reliable results (b) the first is wrong (c) it looks busy (d) to use more paper
6. 6.🔍 Which is the odd one out? (a) use the same load (b) test it only once (c) repeat each test (d) record every result
7. 7.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
8. 8.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
9. 9.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
10. 10.🧪 What is a prototype? (a) an early test model (b) a broken part (c) a sales poster (d) the final product
11. 11.True or false: to repeat each test is poor testing. (a) True (b) False
12. 12.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
13. 13.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to sell them at once (d) to avoid testing
14. 14.🧪 A paper bridge was tested three times. It held 190 g, 70 g and 250 g. What is the mean (average) load it held, in grams?
15. 15.🧪 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 A (b) design C (c) design B
16. 16.True or false: to hide a failed test is poor testing. (a) False (b) True
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 200 g and design C held 150 g. Which design was the strongest? (a) design B (b) design C (c) design A
18. 18.🧪 A paper bridge was tested three times. It held 350 g, 250 g and 300 g. What is the mean (average) load it held, in grams?
19. 19.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) sketch three ideas (c) strengthen the weak part (d) build it with straws
20. 20.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) two (d) all of them
21. 21.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) sketch three ideas (b) build it with straws
22. 22.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
23. 23.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
24. 24.True or false: to test it only once is good testing. (a) True (b) False
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 360 g. Which design was the strongest? (a) design A (b) design B (c) design C
26. 26.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
27. 27.True or false: to use the same load is good testing. (a) True (b) False
28. 28.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
29. 29.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
30. 30.🧪 A paper bridge was tested three times. It held 280 g, 210 g and 290 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to guess, do not measure is good testing. (a) False (b) True
32. 32.🧪 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 weakest? (a) design B (b) design A (c) design C
33. 33.True or false: to use a new load each time is good testing. (a) False (b) True
34. 34.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) load it with coins (b) choose and draw one
35. 35.True or false: to measure the same way is poor testing. (a) False (b) True
36. 36.🧪 A paper bridge was tested three times. It held 360 g, 220 g and 230 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 390 g and design C held 340 g. Which design was the weakest? (a) design B (b) design A (c) design C
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 400 g and design C held 350 g. Which design was the strongest? (a) design A (b) design C (c) design B
39. 39.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) sketch three ideas
40. 40.🧪 A paper bridge was tested three times. It held 350 g, 220 g and 240 g. What is the mean (average) load it held, in grams?

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