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Science--HELP!!

1. In which of the following situations is a sound wave most likely to travel through air?

A) An alarm clock rings in a vacuum.
B) A giant star explodes.
C) A grasshopper eats a leaf.
D) An astronaut uses tools in space.

2. Which of the following factors determines the loudness of a sound?

A) Frequency of the sound.
B) Amplitude of the sound.
C) The temperature of the medium.
D) The density of the medium.

3. Which of the following affects the speed of sound?

A) The amplitude of the wave.
B) The frequency of the wave.
C) The phase of the medium.
D) The wavelength.

4. A blind person walks through the neighborhood making loud clicking noises with his tongue. He doesn't use a walking stick nor does he have a seeing-eye-dog. However, he avoids ever obstacle and is able to navigate his way around the neighborhood safely. What can be inferred from the given information?

A) He is detecting the reflection of sound waves.
B) He is detecting the refraction of sound waves.
C) He is detecting the absorption of sound waves.
D) He is detecting the diffraction of sound waves.

Please help quickly!! Thanks!

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  1. 1.C
    2.B
    3.C
    4.A

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  2. K, Thanks Anna. That's what I thought. :D

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  3. Your welcome :)

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  4. 1 cant c. cause a grasshopper eat really quiet...

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  5. I got 100./. yay

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  6. Thanks i got 100

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  7. OMG TY SO MUCH I LOVE UUU I GAWT 100 %

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  8. NOW I CAN GO TO COLLEGE

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  9. tanks guys

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  10. Lol ya'll are funny. :D

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  11. I am going to see what answers get me 100%....

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  12. 5 is A

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  13. IS 1 ACTUALLY C?

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  14. I got 100% thx ppl

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  15. 1.C
    2.B
    3.C
    4.A
    5.A

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  16. lashyla is correct

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  17. lashyla is right

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  18. 1.c
    2.b
    3.c
    4.a
    5.a
    These are the answers I took the test and I got 100%.

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  19. Thank you, I got 100% on the quiz!

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  20. thanks I got 100%

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  21. c
    b
    c
    a
    a

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  22. ty guys

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  23. In which of the following situation is light most likely to be refracted

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  24. I think c am i right?

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  25. THX 100%

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  26. TYSM!

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  27. DONT CHEAT

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  28. the answers are correct. And Andreas, that's not going to stop anyone from cheating. I commend you for your efforts, though. Nice try.

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  29. Andrea your cheating cause your on here. Think about it Γ‘ina.

    And Boo is right

    C
    B
    C
    A
    A

    Thank you Hunny~!

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  30. C
    B
    C
    A
    A

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  31. C because every thing else cant make noise because they are deprived ofbair so even though "They eat real quiet" they still make a noise.

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  32. The answers are
    c
    b
    c
    a
    a'

    LIKE BAM

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  33. c
    b
    c
    a
    a

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  34. 1.C
    2.B
    3.C
    4.A
    5.A

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  35. The answers are
    C
    B
    C
    A
    A
    I just took the test and I got 100%

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  36. @BOO is correct! Thanks love! :)

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  37. Lexxy? Lexey?!

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  38. boo is correct :)

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  39. Unit 4 Lesson 2
    C
    B
    C
    A
    A
    100%

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  40. thxs hunnies

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  41. YAAAAAASSSSSSS! Thx guys!

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  42. 1. C
    2. B
    3. C
    4. A
    5. A

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  43. THANK YOU

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  44. thank u so much LaShyla that helped alot much thanks

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  45. for connections unit 4 lesson 2
    Sound

    1.C
    2.B
    3.C
    4.A
    5.A

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  46. THANKS LASHYLA! GIRL HELPIN ME SO MUCH ILYπŸ’“πŸ’“πŸ’žπŸ’ž

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  47. Tank y'all. u saved mah life.

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  48. 1. C- a grasshopper eats a leaf
    2. B- amplitude of the sound wave
    3. C- the phase of the medium
    4. A- he is detecting the reflection of sound waves
    5. A- reflection

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  49. I don't get how number one is c tho

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  50. but it is

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  51. ty

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  52. thx

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  53. LOL that guy in a dog costume πŸ˜‚

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  54. Andreas is is one of Benjamin Kirby tennesins Aliens.

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  55. 1. C
    2. B
    3. C
    4. A
    5. A
    100% 5/5 :)

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  56. THANK U sweaterweather and girl in red:)

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  57. yea its right and its the middle of the year 2021 now so...yea...

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  58. I think its weird when people repost the answers that somebody else already put.

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  59. It's clearly obvious that sweater weather looked up near the top.

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  60. Still CBCAA!!!

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  61. its
    c
    b
    c
    a
    a
    I got it wrong cause I missclicked lul

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