Waves and Sound Concepts Pt.1

These flashcards cover key concepts related to waves and sound, including definitions, properties, and relationships.

What is the definition of a wave?

A vibration which moves through a substance (medium).

What is the relationship between amplitude and energy?

The larger the amplitude, the more energy the wave carries.

Define frequency in the context of waves.

Frequency is the number of vibrations per second.

What determines the speed of a wave?

Wave speed depends on the substance (medium) through which the wave is traveling.

How do transverse waves differ from longitudinal waves?

Transverse waves transfer energy perpendicular to the disturbance, while longitudinal waves transfer energy in the same direction as the disturbance.

What is a mechanical wave?

A wave that requires a medium for its travel.

Give an example of a mechanical wave.

Sound waves or water surface waves.

What is the frequency range that normal people can hear?

20 - 20,000 Hz.

How is intensity related to sound?

Intensity is the loudness of the sound, related to the amplitude of the sound wave.

What is the speed of sound at 20°C in dry air?

343 m/s.

What are nodes and antinodes in standing waves?

Nodes are points that do not move, while antinodes are points of maximum vibration.