Science Form 2

• Communicate about the basic characteristics of sound waves

• Explain frequency and its unit, and amplitude of vibration
• Relate frequency to pitch
• Relate amplitude to loudness
• Explain with examples loudness and pitch using musical instruments

• Explain with example phenomena related to reflection of sound waves such as echo and Doppler effect
• Explain with example the applications of reflection of sound waves
• Elaborate and communicate about limitations of hearing for humans and animals
• Explain with examples ways to overcome human limitations of hearing