Sound and Vibration Flashcard

Front

What is sound?

Back

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

Front

What is vibration?

Back

Vibration is the rapid back-and-forth movement of an object, which produces sound.

Front

How does the loudness of sound change with distance?

Back

As sound travels farther away from the source, it gets fainter and less loud.

Front

What is the difference between loud and soft sounds?

Back

Loud sounds have a high amplitude of vibration, while soft sounds have a low amplitude.

Front

What are some common sources of sound?

Back

Common sources of sound include musical instruments, voices, machinery, and natural phenomena like thunder.

Front

What is the role of a drum in sound production?

Back

A drum produces sound by vibrating its membrane when struck, creating sound waves.

Front

What does it mean for sound to be muffled?

Back

Muffled sound is when sound waves are blocked or absorbed, making them quieter and less clear.

Front

What is an echo?

Back

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

Front

How do different materials affect sound?

Back

Different materials can absorb, reflect, or transmit sound waves, affecting how sound is heard.

Front

What is pitch in sound?

Back

Pitch is the perceived frequency of a sound, determining how high or low it sounds.