8.2 Sound Lessons 1-6 Review

Front

What causes sound?

Back

Sound is caused by vibrations.

Front

What is frequency?

Back

Frequency is the number of peaks or valleys in one second.

Front

Which sound level is the quietest?

Back

1 is the quietest sound level.

Front

What is amplitude?

Back

Amplitude is the distance from the starting position to a peak or valley.

Front

What determines the volume of a sound?

Back

The amplitude of the vibration determines the volume of a sound.

Front

What is a wave?

Back

A wave is a disturbance that transfers energy through matter or space.

Front

What is the relationship between frequency and pitch?

Back

Higher frequency results in a higher pitch, while lower frequency results in a lower pitch.

Front

What is the speed of sound?

Back

The speed of sound is the distance sound travels in a given amount of time, typically around 343 meters per second in air at room temperature.

Front

What is an echo?

Back

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

Front

What is the role of the medium in sound transmission?

Back

The medium (solid, liquid, or gas) is necessary for sound to travel, as sound waves need particles to vibrate.