Hearing and Sound
If a sound wave is big it is....
What is LOUD?
A movement that can be very fast or quite slow and move back and forth.
What is vibration?
This is the unit sound is measured in.
What is decibels?
Sound can travel through__________, ___________, and ___________.
What is SOLID, LIQUID, and GAS?
Animals use this to locate object by reflecting sounds
What is Echolocation?
True or False: Pitch refers to the frequency of a sound wave.
What is true?
How loud or how soft a sound is is called_________.
What is volume?
This decibel level is where sound can become dangerous.
What is 85 dB?
These materials help absorb sounds.
What are materials soft couches, carpet and chairs? Soft materials such as sponges, cotton or foam.
These animals use echolocation.
What are dolphins, whales and bats?
Air molecules vibrate me at the end of the ear canal.
What is the Ear Drum?
The highness or lowness of sound is called its______.
What is Pitch?
This is the decibel level of a whisper.
What is 20dB?
Of the three ways that sound waves can travel, which is the fastest and which is the slowest?
What is sound waves travel fastest through solids and slowest through gases?
I am used to help deaf people communicate.
What is sign language?
The difference between pitch and volume is . . .
What is Pitch is high and low, volume is soft and loud?
Increasing a sound is means we ________ the sound.
What is amplify?
Name 3 sounds that can damage our hearing?
What is Fireworks, Thunder, and Yelling
These materials help reflect sounds.
What are materials such as wood, metal or bricks. Hard, smooth and flat surfaces.
What are 2 ways we can take care of our ears?
What are
1. listening to music at a lower volume.
2. Wear ear plugs if you are around loud noises.
3. Leave the room
4. Cover your ears or muffle the sound
Other answers will work as well.
High pitches move _________
What is fast?
Materials that absorb sound to make the sound not as loud.
What is Soundproof?
The ear makes sense of sound vibrations by?
What is the three parts of the ear work together to collect sounds and send them to the brain?
True or False: You cannot hear sound when you are under water.
What is FALSE?
The three parts of the ear
What is Outer Ear, Middle Ear and Inner Ear?