Hearing and Sound

Sound is caused by __________

• echos

• vibrations

• light

• air

Volume is __________

• how high or low a sound is

• how loud or quiet a sound is

How do we measure volume?

• db

• hertz

• decibles

• hrtz

Is this vibration a loud or quiet sound?

• Loud

• Quiet

Is this a loud of quiet sound?

• Loud

• Quiet

Which of the following are example of loud sounds? (hint : two answers)

• thunder

• mouse

• rain

• ambulance siren

Which of the following are quiet sounds?

• car purring

• whispering

• school bell

• drill

What state of matter is the best conductor of sound (hear sounds the loudest?

• gas

• liquid

• solid

• they are all the same

What is the worst conductor of sound?

• gas

• liquid

• solid

• all of them

What is an insulator?

• makes the sound harder to hear

• makes the pitch higher

• makes the volume louder

• all of the above