Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 473 · 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.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?
2. 2.🧪 A paper bridge was tested three times. It held 280 g, 180 g and 380 g. What is the mean (average) load it held, in grams?
3. 3.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 430 g. How many more grams did it hold?
4. 4.True or false: to use the same load is good testing. (a) True (b) False
5. 5.True or false: to change lots at once is poor testing. (a) True (b) False
6. 6.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
7. 7.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) sketch three ideas (b) read the challenge rules
8. 8.🔢 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
9. 9.True or false: to use a new load each time is poor testing. (a) True (b) False
10. 10.🧪 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 weakest? (a) design C (b) design A (c) design B
11. 11.True or false: to use a new load each time is good testing. (a) True (b) False
12. 12.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
13. 13.🧪 A paper bridge was tested three times. It held 260 g, 180 g and 130 g. What is the mean (average) load it held, in grams?
14. 14.True or false: to test it only once is poor testing. (a) False (b) True
15. 15.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
16. 16.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to test ideas cheaply (d) to decorate a room
17. 17.True or false: to repeat each test is poor testing. (a) False (b) True
18. 18.True or false: to change lots at once is good testing. (a) False (b) True
19. 19.True or false: to change only one thing is good testing. (a) False (b) True
20. 20.🔢 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
21. 21.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) build it with straws (c) strengthen the weak part (d) load it with coins
22. 22.🧪 A paper bridge was tested three times. It held 330 g, 270 g and 390 g. What is the mean (average) load it held, in grams?
23. 23.🧪 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 A (b) design B (c) design C
24. 24.True or false: to guess, do not measure is good testing. (a) True (b) False
25. 25.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
26. 26.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) read the challenge rules (c) strengthen the weak part (d) sketch three ideas
27. 27.🧪 A paper bridge was tested three times. It held 360 g, 220 g and 320 g. What is the mean (average) load it held, in grams?
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 330 g and design C held 280 g. Which design was the strongest? (a) design C (b) design B (c) design A
29. 29.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) to get reliable results (d) it looks busy
30. 30.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
31. 31.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 480 g. How many more grams did it hold?
32. 32.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) choose and draw one (c) read the challenge rules (d) build it with straws
33. 33.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the strongest? (a) design C (b) design B (c) design A
35. 35.🔍 Which is the odd one out? (a) skip writing results (b) record every result (c) test it only once (d) change lots at once
36. 36.🧪 A paper bridge was tested three times. It held 250 g, 120 g and 170 g. What is the mean (average) load it held, in grams?
37. 37.🔍 Which is the odd one out? (a) change only one thing (b) hide a failed test (c) change lots at once (d) use a new load each time
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 220 g. Which design was the strongest? (a) design A (b) design C (c) design B
39. 39.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) use a new load each time (d) skip writing results
40. 40.🧪 A paper bridge was tested three times. It held 230 g, 160 g and 210 g. What is the mean (average) load it held, in grams?

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