This document outlines the topics and objectives for a lesson on sound. The topics include the nature, production, and propagation of sound, characteristics of sound waves, speed of sound, reflection and its applications, human sound and hearing, ultrasound, and SONAR. The objectives are for students to understand how sound is produced and travels as longitudinal waves through a medium, the properties of sound waves, how sound reflects and causes echoes and reverberation, human hearing abilities, and applications of ultrasound and SONAR technology.

1. SONAL BHARAL (23)
111 A Critical Understanding of ICT
F.Y.B.ED
TILAK COLLEGE OF EDUCATION
MSCERT – IX
Prof. Incharge:
Prof. Sonpethkar

2. SUB TOPICS
• Nature of sound
• Production of sound
• Propagation of sound
• Sound waves are longitudinal waves
• Difference between longitudinal wave and transverse wave
• Sound as a wave
• Characteristics of sound wave
• Speed of sound
• Reflection of sound
• Echo, reverberation
• Human sound
• Human ear
• Frequency range of hearing in humans and ultrasound
• SONAR

3. OBJECTIVES
The students will be able to:
describe production of sound
understand propagation of sound
analyze sound needs a medium to travel
identify sound waves are longitudinal waves
understand characteristics of a sound wave
evaluate speed of sound in different media
explain reflection of sound and its uses
understand echo
explain reverberation
explain structure of human ear
determine range of hearing
understand applications of ultrasound
define and explain SONAR