Pedagogy of Physical Science - Part II (Sound), II B.Ed. B.Ed., Pedagogy, IX std Science, Sound, IX State board Science, Sound, Production of sound, Propagation of sound waves, sound needs a medium for propagation, sound is a wave, longitudinal nature of sound waves, characteristics of a sound waves, amplitude, frequency, time period, wavelength, velocity, speed, pitch, timbre, quality, speed of sound, speed of sound in different media, reflection of sound, uses of multiple reflections of sounds, musical instruments, stethoscope, Echo, reverberation, ultrasonic sound, ultrasound, Applications of ultrasonic waves, SONAR, ECG, Electrocardiogram, Structure of Huma Ear

1. Pedagogy of Physical
Science – Part II
BY
Dr. I. UMA MAHESWARI
Principal
Peniel Rural College of Education, Vemparali, Dindigul District
iuma_maheswari@yahoo.co.in

2. UNIT 8 - SOUND
STD IX

4. INTRODUCTION
Sound is a form of energy which produces sensation of hearing in our ears.
Human ear can hear only a particular range of frequency of sound that too with a certain
range of energy