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The purpose of a science fair is to teach you to do research and our answering your question won't teach you this skill that you need to know as you go through school. I know your science book gives this answer along with other resources, but our doing your work for you wont help you.
What else can I help you with?
Does friction allow humans to talk?
No, friction does not play a direct role in enabling humans to talk. Speech production is primarily a result of air passing through the vocal cords, which then resonate and produce sound waves that form words and sentences.
How is sound produce in liquid?
vibrations caused by the sound waves travel thru the water making the water vibrate causing sound. that is why you cant hear someone talk under water at great distances. the water is denser than the sound waves
Does a low sound produce more sound waves?
no but the reason they can be heard so far away is because the sound waves travel much farther than higher pitch sound waves. google image sound waves. since lower ones are flatter they can do this and they can penetrate through physical obstacles. for example whales communicate with low frequency sounds and thus they can talk to a fellow whale miles and miles away
What can be learned about oceans by using sound waves?
Whales use sound waves to talk to other whales in their own language
How are the longitudinal waves in the solid rod similar to longitudinal waves in a pipe open at both ends?
The answer is they make sound waves. Sound waves are what we hear when we listen to people talk, music, or nature.
Why do we need air to talk?
we need oxygen because air carries the sound waves.
How sound travels from your vocal cords to your friends ear when you talk?
When you speak, your friend's ear gathers compressional waves, which are sound waves. Then, the ear amplifies the waves, converting them to nerve impulses that travel to the brain. And then, the brain decodes and interprets the nerve impulses.
How do birds speak?
Turkeys don't 'talk' like humans do, but they gobble.
How Do Cattle Moo?
The same way we talk, the vibrations of our vocal cords produce sound.
Explain how sound travels from your vocal cords to your friends ear when you talk?
When you speak, your friend's ear gathers compressional waves, which are sound waves. Then, the ear amplifies the waves, converting them to nerve impulses that travel to the brain. And then, the brain decodes and interprets the nerve impulses.
What is microphone and its functions?
A microphone is a device that picks up sound waves, converts the waves in to electrical pulses to be sent down cables or by wifi. A speaker receives the electrical pulses and converts the pulses back in to sound waves that a person can hear and understand.
What makes the vibration when you talk?
Vibration when you talk is caused by air passing through your vocal cords, causing them to rapidly open and close. This vibration creates sound waves that travel through the air and are picked up by your ears as sound.
