Physics Middle School

IF YOU GET GOOD GRADES ON SCIENCE TESTS PLEASE HELP ME!!!!!
Out of the wild west during the time of colonial expansion , the native peoples would put their ears to the ground to listen for herds of bison or groups of horses in the area. Why would listening to the ground be more effective than cupping a hand around your ear while standing up on high ground?
A.the ground is denser than the air so the sound of a herd can be heard sooner through ground than through the air.
B.the ground is less dense than the air so the sound of a herd can be heard sooner through the ground than through air.
C.the ground is denser than the air so the sound of a herd can be heard through air than through ground.
D.the ground is less dense than the air so the sound of a herd can be heard sooner through the air than through the ground.
(please be 100% sure with your answer)

Answers

Answer 1

Answer:

The answer is 100% A  THE ANSWER IS A!!!!

Explanation:

i have a 100 in all of my classes including science

Answer 2

Listening to the ground is more effective than cupping a hand around your ear while standing up on the high ground because the ground is denser than the air so the sound of a herd can be heard sooner through the ground than through the air.

What is a sound wave?

It is a particular variety of mechanical waves made up of the disruption brought on by the movements of the energy. In an elastic medium like the air, a sound wave travels through compression and rarefaction.

As given in the problem statement the native peoples would put their ears to the ground to listen for herds of bison or groups of horses in the area.

The speed of the sound depends on the medium of the travel it is maximum in the solid and minimum among all the three mediums.

Because the earth is denser than the air and the sound of a herd travels more quickly through the ground than through the air, listening to the ground is more effective than placing your palm over your ear while standing at a high point.

To learn more about sound waves from here, refer to the link;

brainly.com/question/11797560

#SPJ2

Related Questions

The blue mass in the image is 10kg.


The red mass in the image is 10kg.


The blue mass is currently 4 meters away from the red mass.


If we change each mass to 20kg, what will happen to the gravitational force each mass puts on the other?? You have to pick a answer through A,B,C! The force of gravity will increase as the masses increase.



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Answers

i think it’s a correct me if i’m wrong
I’m pretty sure it is A!

Use the chemical reaction to answer the question.

Answers

Answer:

I believe this answer is -They maintain their properties-

Explanation:

Let's see what others say.  :)

the answer should be the first one, maintaining their properties
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