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!

  1. 👍 1
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  3. 👁 5,303
asked by Jasmine
  1. 1.C
    2.B
    3.C
    4.A

    1. 👍 49
    2. 👎 1
  2. K, Thanks Anna. That's what I thought. :D

    1. 👍 7
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    posted by Jasmine
  3. Your welcome :)

    1. 👍 3
    2. 👎 0
  4. 1 cant c. cause a grasshopper eat really quiet...

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    posted by Ur_Mom
  5. I got 100./. yay

    1. 👍 1
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    posted by ms. cat
  6. Thanks i got 100

    1. 👍 1
    2. 👎 0
    posted by Tierra
  7. OMG TY SO MUCH I LOVE UUU I GAWT 100 %

    1. 👍 1
    2. 👎 0
    posted by jam
  8. NOW I CAN GO TO COLLEGE

    1. 👍 5
    2. 👎 1
    posted by jam
  9. tanks guys

    1. 👍 1
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  10. Lol ya'll are funny. :D

    1. 👍 2
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    posted by Mariana
  11. I am going to see what answers get me 100%....

    1. 👍 1
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    posted by Yuck
  12. 5 is A

    1. 👍 37
    2. 👎 0
    posted by Olive
  13. IS 1 ACTUALLY C?

    1. 👍 5
    2. 👎 0
    posted by YAY
  14. I got 100% thx ppl

    1. 👍 2
    2. 👎 0
  15. 1.C
    2.B
    3.C
    4.A
    5.A

    1. 👍 70
    2. 👎 0
    posted by LaShyla
  16. lashyla is correct

    1. 👍 5
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    posted by hhh
  17. lashyla is right

    1. 👍 2
    2. 👎 0
  18. 1.c
    2.b
    3.c
    4.a
    5.a
    These are the answers I took the test and I got 100%.

    1. 👍 16
    2. 👎 0
  19. Thank you, I got 100% on the quiz!

    1. 👍 3
    2. 👎 0
  20. thanks I got 100%

    1. 👍 2
    2. 👎 0
    posted by Corbin
  21. c
    b
    c
    a
    a

    1. 👍 7
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    posted by boo
  22. ty guys

    1. 👍 2
    2. 👎 0
  23. In which of the following situation is light most likely to be refracted

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  24. greggggg

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  25. I think c am i right?

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    posted by qdaewrf
  26. -_-

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    posted by qdaewrf
  27. THX 100%

    1. 👍 0
    2. 👎 0
  28. TYSM!

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    posted by Welp
  29. DONT CHEAT

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

    1. 👍 0
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    posted by Tisky
  31. Andrea your cheating cause your on here. Think about it Γ‘ina.

    And Boo is right

    C
    B
    C
    A
    A

    Thank you Hunny~!

    1. 👍 3
    2. 👎 0
  32. C
    B
    C
    A
    A

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    posted by N
  33. 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.

    1. 👍 0
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    posted by Norot
  34. The answers are
    c
    b
    c
    a
    a'

    LIKE BAM

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    posted by Lexxy
  35. c
    b
    c
    a
    a

    1. 👍 3
    2. 👎 0
  36. 1.C
    2.B
    3.C
    4.A
    5.A

    1. 👍 2
    2. 👎 1
    posted by Emo Aunt
  37. The answers are
    C
    B
    C
    A
    A
    I just took the test and I got 100%

    1. 👍 3
    2. 👎 0
  38. @BOO is correct! Thanks love! :)

    1. 👍 0
    2. 👎 0
  39. Lexxy? Lexey?!

  40. boo is correct :)

    1. 👍 0
    2. 👎 0
  41. Unit 4 Lesson 2
    C
    B
    C
    A
    A
    100%

    1. 👍 3
    2. 👎 0
  42. thxs hunnies

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    posted by ?
  43. YAAAAAASSSSSSS! Thx guys!

    1. 👍 0
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  44. 1. C
    2. B
    3. C
    4. A
    5. A

    1. 👍 0
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    posted by Hal
  45. THANK YOU

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    2. 👎 0
  46. thank u so much LaShyla that helped alot much thanks

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  47. for connections unit 4 lesson 2
    Sound

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

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    posted by Netflix
  48. THANKS LASHYLA! GIRL HELPIN ME SO MUCH ILYπŸ’“πŸ’“πŸ’žπŸ’ž

    1. 👍 1
    2. 👎 0
  49. Tank y'all. u saved mah life.

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