More Science Worksheets
A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
Sound waves are longitudinal waves. Their vibrations occur in the same direction as the direction of travel. Sound waves can only travel through a solid, liquid or gas.
When an object or substance vibrates, it produces sound:
• the greater the amplitude, the louder the sound
• the greater the frequency, the higher the pitch.
Transmission of Sound
How sound travels through the various states of matter?
Significance of vibrations in the traveling of sound energy
Types of sound waves.
• Describe how the frequency and amplitude of a sound wave affect the pitch and loudness of a sound.
• Explain why sound cannot travel through a vacuum.
• Describe what is meant by an echo.
Sound and Hearing
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