Sound Energy - JSS3 Basic science Past Questions and Answers - page 2
How is sound produced?
Sound is produced when an object vibrates, causing the air particles around it to also vibrate. These vibrations create sound waves that travel through the air.
What determines the volume of a sound?
The volume of a sound is determined by the amplitude of the vibrations. Higher amplitude vibrations create louder sounds, while lower amplitude vibrations create softer sounds.
How does sound travel through different mediums?
Sound travels through different mediums by causing the particles of the medium to vibrate as the sound waves pass through. The speed and intensity of sound can vary depending on the density and properties of the medium.
Why does sound travel faster in solids than in air?
Sound travels faster in solids than in air because the particles in solids are closer together, allowing sound waves to propagate more quickly through the medium.
How do our vocal cords contribute to speech?
Our vocal cords vibrate as air passes through them, producing different frequencies and pitches that create speech sounds. By changing the tension and shape of our vocal cords, we can produce different sounds and words.
Can you give an example of how sound is transmitted through a solid medium?
When you strike a tuning fork and place it against a solid object like a table, the sound waves travel through the table's material, causing it to vibrate and producing an audible sound.