Sound and Light Energy

Front

Why is the school library covered with carpet?

Back

To help absorb sounds to keep it quiet.

Front

________ is the distance between a point on one wave and a similar point on the next wave.

Back

Wavelength.

Front

Is there sound in space?

Back

No, because sound needs matter to travel through, and there is no matter in outer space.

Front

Sound cannot travel through __________.

Back

Empty space.

Front

A wave transfers __________.

Back

Energy.

Front

What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves.

Front

What is light energy?

Back

Light energy is the energy that is visible to the human eye and is produced by the vibrations of electrically charged particles.

Front

What is the speed of sound in air?

Back

Approximately 343 meters per second at room temperature.

Front

What is the difference between pitch and volume?

Back

Pitch refers to how high or low a sound is, while volume refers to how loud or soft a sound is.

Front

What is an echo?

Back

An echo is a reflection of sound that arrives at the listener after a delay.