Flashcard on Sound Waves

Front

What is the definition of pitch in sound waves?

Back

Pitch is a measure of how high or low a sound is, determined by the frequency of the sound wave.

Front

How does sound intensity affect energy loss in sound waves?

Back

A sound wave with low intensity loses energy more quickly than a high-intensity wave.

Front

What is the purpose of reflective questions in the 'Before You Read' section?

Back

The purpose is to engage students and prompt them to think critically about the material before reading.

Front

What unit is used to measure sound intensity?

Back

The unit for measuring sound intensity is the decibel (dB).

Front

What phenomenon is primarily caused by a change in position?

Back

The Doppler effect is primarily caused by a change in position of the sound source or the observer.

Front

What is the relationship between frequency and pitch?

Back

Higher frequency sound waves correspond to higher pitch, while lower frequency sound waves correspond to lower pitch.

Front

What is the formula for calculating the speed of sound in air?

Back

The speed of sound in air can be calculated using the formula: v = 331.3 + (0.6 * T), where T is the temperature in degrees Celsius.

Front

What is the difference between longitudinal and transverse waves?

Back

Longitudinal waves have particle motion parallel to the direction of wave propagation, while transverse waves have particle motion perpendicular to the direction of wave propagation.

Front

How does temperature affect the speed of sound?

Back

The speed of sound increases with an increase in temperature.

Front

What is the principle behind resonance in sound waves?

Back

Resonance occurs when an object vibrates at its natural frequency due to an external force, amplifying the sound.