Sound Test

What do bats use to locate food and to navigate?

• echolocation

• acoustics

• dissonance

• infrasound

The speed of sound depends on

• the loudness

• the source

• the pitch

• the properties of the medium it travels through

Sound travels more slowly

• in mediums that have high elasticity

• in dense materials

• at high temperatures

Which term refers to how high or low a sound seems to a person?

• frequency

• intensity

• pitch

• loudness

A system of detecting reflected sound waves is

• sonar

• acoustics

• infrasound

Doctors are able to make sonograms through the use of

• sonar

• ultrasound

• infrasound

• none of the above

At what level does sound become painful to most people?

• 40 db

• 70 db

• 120 db

• 10 db

Loudness, is measured in

• meters per second

• watts

• kilograms

• decibels

Sound is a disturbance that travels through a medium as a

• surface wave

• longitudinal wave

• standing wave

• none of the above

Which part of you ear sends messages to that brain?

• outer part

• cochlea hairs

• hammer

• eardrum