Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 317 · 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.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) none (d) one
2. 2.🧪 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 weakest? (a) design C (b) design B (c) design A
3. 3.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
4. 4.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
5. 5.True or false: to repeat each test is good testing. (a) True (b) False
6. 6.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
7. 7.🧪 A paper bridge was tested three times. It held 200 g, 90 g and 280 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to avoid testing (d) to test ideas cheaply
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 320 g and design C held 270 g. Which design was the weakest? (a) design B (b) design A (c) design C
10. 10.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
11. 11.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 480 g. How many more grams did it hold?
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 360 g, design B held 310 g and design C held 260 g. Which design was the strongest? (a) design B (b) design C (c) design A
13. 13.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) record every result (d) change only one thing
14. 14.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
15. 15.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) sketch three ideas (c) load it with coins (d) build it with straws
16. 16.True or false: to use a new load each time is poor testing. (a) False (b) True
17. 17.🧪 A paper bridge was tested three times. It held 330 g, 270 g and 330 g. What is the mean (average) load it held, in grams?
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design A (b) design C (c) design B
19. 19.🧪 A paper bridge was tested three times. It held 290 g, 120 g and 220 g. What is the mean (average) load it held, in grams?
20. 20.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) strengthen the weak part (c) choose and draw one (d) sketch three ideas
21. 21.🧪 A paper bridge was tested three times. It held 260 g, 190 g and 270 g. What is the mean (average) load it held, in grams?
22. 22.🧪 A paper bridge was tested three times. It held 360 g, 270 g and 420 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 110 g, design B held 210 g and design C held 160 g. Which design was the weakest? (a) design C (b) design B (c) design A
24. 24.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
25. 25.🧪 A paper bridge was tested three times. It held 300 g, 220 g and 290 g. What is the mean (average) load it held, in grams?
26. 26.🧪 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 strongest? (a) design A (b) design C (c) design B
27. 27.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
28. 28.🧪 A paper bridge was tested three times. It held 280 g, 130 g and 160 g. What is the mean (average) load it held, in grams?
29. 29.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) choose and draw one (c) build it with straws (d) sketch three ideas
30. 30.True or false: to use the same load is good testing. (a) False (b) True
31. 31.True or false: to change only one thing is poor testing. (a) False (b) True
32. 32.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
33. 33.True or false: to record every result is good testing. (a) False (b) True
34. 34.🧪 Why repeat a test three times? (a) to get reliable results (b) the first is wrong (c) to use more paper (d) it looks busy
35. 35.🧪 A paper bridge was tested three times. It held 200 g, 170 g and 230 g. What is the mean (average) load it held, in grams?
36. 36.True or false: to skip writing results is poor testing. (a) False (b) True
37. 37.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
38. 38.🧪 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 strongest? (a) design C (b) design A (c) design B
39. 39.True or false: to change only one thing is good testing. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) guess, do not measure (d) use the same load

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