Sound

Front

What is sound?

Back

Sound is a type of energy that travels in waves and is produced by vibrating objects.

Front

What is the medium for sound to travel?

Back

A medium is a substance (solid, liquid, or gas) through which sound waves can travel.

Front

Which material does sound travel through the fastest?

Back

Sound travels fastest through solids, with steel being one of the fastest materials.

Front

What is pitch?

Back

Pitch is how the human ear interprets the frequency of a sound; it determines how high or low a sound is.

Front

What unit is used to measure sound intensity (loudness)?

Back

Sound intensity is measured in decibels (dB).

Front

What is frequency?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is ultrasonic sound?

Back

Ultrasonic sound refers to sound waves with frequencies above 20,000 Hz, which are beyond the range of human hearing.

Front

What is the relationship between frequency and pitch?

Back

Higher frequencies correspond to higher pitches, while lower frequencies correspond to lower pitches.

Front

What is a longitudinal wave?

Back

A longitudinal wave is a type of wave in which the particles of the medium move parallel to the direction of the wave's travel.

Front

What is sound reflection?

Back

Sound reflection occurs when sound waves bounce off a surface, which can create echoes.