Sound 4th Grade SCIS

Front

What is sound?

Back

Sound is a type of energy made by vibrations that travels through air, water, or solids.

Front

What are sound waves?

Back

Sound waves are vibrations that travel through a medium (like air or water) and can be heard when they reach a person's or animal's ear.

Front

What is pitch?

Back

Pitch is how high or low a sound is, determined by the frequency of the sound waves.

Front

What is volume?

Back

Volume is the loudness or softness of a sound, which is determined by the energy of the sound waves.

Front

What is frequency?

Back

Frequency is the number of sound wave cycles that occur in one second, measured in Hertz (Hz).

Front

How do sound waves travel?

Back

Sound waves travel by vibrating the particles in the medium they move through, such as air, water, or solids.

Front

What is an eardrum?

Back

The eardrum is a thin membrane in the ear that vibrates when sound waves hit it, helping us to hear.

Front

What happens when sound waves bounce off a surface?

Back

When sound waves bounce off a surface, it is called reflection, which can create echoes.

Front

What is an example of a medium for sound?

Back

Air, water, and solids like wood or metal are all examples of mediums through which sound can travel.

Front

What is noise?

Back

Noise is an unwanted or unpleasant sound that can be distracting or disturbing.