Science 9-2 Fill

These flashcards cover the basic concepts about sound, including its characteristics, sources, and how sound travels.

Sound is a form of __________.

Energy

Without __________, there will be no sound.

Vibration

Some examples of natural sounds are human voices, __________ sounds, and flowing water.

Animal

Artificial sounds are sounds that we hear from __________ things.

Nonliving

The loudness of a sound is called __________.

Volume

The bigger drum will produce a __________ sound than the smaller drum.

Louder

Sound waves can travel through solids, __________, and gases.

Liquids

Sound travels slowest through __________.

Gas

Sounds bounce off from different surfaces, creating an __________.

Echo

Pitch describes how __________ or low a sound is.

High

Objects that vibrate slowly produce sounds with a __________ pitch.

Low

Ultrasound sends sound waves into a person's body for __________.

Medical imaging

To protect yourself from noise pollution, always speak in a __________ voice.

Moderate

Sounds travel in the form of __________.

Waves

The sound waves are strongest near the __________.

Source