How Sound Moves
What causes sound?
What is vibrations moving through the air?
The highness or lowness of a sound - is what word?
Pitch
Why is there no sound in space?
What is sound is not in space because there is no air particles for the vibrations to bounce between to move the vibrations?
If the object is long, very thick, and pretty wide in size, it will have a ______________ pitch.
What is low pitch?
The loudness or softness of a sound is what word?
What is Volume?
How does sound move out from an object? For example a bell.
The sound will move out in all directions as a compression wave. For example - the slinky I used in class to demonstrate this.
If the sound waves are fast - how would you describe the frequency and pitch?
What is the frequency is high and the pitch is high?
What is the material that sound travels through called?
What is a medium?
If the object is short in size, thin as far as a string, and small - it will have a ____________ pitch. Why?
High pitch because there is less space to vibrate. The waves will be high frequency.
When sound bounces off a hard object and comes back? Sound reflecting.
What is an echo?
In which state of matter (solid, liquid, or gas) does sound move the slowest? Why?
Gas - because the molecules are spread out more where the vibrations can not hit the molecules and move them as much.
When we worked with the styrofoam cup telephones, how did the string need to be in order to communicate? Why?
What is the string needed to be tight and straight so the vibrations could move down the string (the solid) to the next cup to echo for the person to hear?
When we did the bottle lab, how much water was in the bottle that caused it to have a high pitch?
What is the bottle with the high pitch was the one with the most water because there was less space or air to vibrate?
What is it called when they use sound waves to reflect off the baby inside the mother's womb?
What is ultrasound?
In a large area like the gym, sound is __________________ because most of the surfaces are hard.
What is the sound is reflected?
Mr. Coons strums two strings on a guitar. The first string vibrates slowly. What pitch will the string probably have? Why?
What is low pitch because it has slow vibrations and less frequency?
In echolocation, animals bounce sound off objects around them. What animals do echolocation? Give me one animal.
What is bats, dolphins, whales?
In the nail lab, how are the vibrations in the longer nail?
Are they faster and slower? What type of frequency? -Most answer both to get points.
The vibrations will be slower and it will have a lower frequency.
In a room with a couch, carpet on the floor, and several drapes on the windows, most of the sound will be _________________.
What is the sound will be absorbed?
The squeezing together of molecules is called ___________________________. The part of the slinky that is all bunched up.
What is compression?
How are the molecules in a solid, liquid, and gas? Explain which state of matter is the fastest in moving sound.
Pitch and frequency work together. If one is high, the other is high. What word works with amplitude?
What is volume?
Why do humans not hear dog whistles?
Humans do not hear dog whistles because it is out of their hearing range. Humans hear from 20 to 20,000 hertz (frequency).
The pitch of the sound is controlled by how ________________________________________.
What is the pitch is controlled by how fast the object vibrates?
In this house, there is two rooms. The rooms are connected to each other with a wooden door in the middle. The one room has a student yelling in it and an adult using a hammer to hit something on a wooden desk. The noise is coming to the second room. What could they do so the other room is not so loud? (How could you fix first room?)
What is they could put more furniture in the room with the noise, they could put sound panels up in that room, they could try to pad the wooden door in between the two rooms with soft items, move further away from the door, add carpet to the room?