Curriculum
- 1 Section
- 41 Lessons
- 96 Weeks
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- Sound41
- 2.1Introduction
- 2.2Objectives
- 2.3Vibrating tuning fork
- 2.4How is sound produced
- 2.5Sound by different objects
- 2.6Sources of sound
- 2.7Vibrations
- 2.8Sound is produced by vibrations
- 2.9Longitudinal waves
- 2.10Sound mades medium to travel
- 2.11Give reason
- 2.12Sound wave
- 2.13Activity to understand sound wave travel through
- 2.14Sound can travel through hard surface
- 2.15Sound needs travel through a medium
- 2.16Transverse wave
- 2.17Characteristic of a sound wave
- 2.18Loudness
- 2.19Activity to understand vibration
- 2.20About vibration
- 2.21Questions
- 2.22Frequency
- 2.23Graphs
- 2.24Second graph
- 2.25Lowest frequency sound
- 2.26Sound wave
- 2.27Waveform
- 2.28Time period
- 2.29Speed of sound in different media
- 2.30Supersonic speeds
- 2.31Reflection of wave
- 2.32Echo
- 2.33Reverberation
- 2.34Musical instruments
- 2.35Range of hearing
- 2.36Hearing aid
- 2.37Application of ultrasound
- 2.38Sonar
- 2.39Ultrasonic waves
- 2.40Stucture of human ear
- 2.41Summary
