Waves and Technology

Sound waves are vibrations that travel through a medium (like air, water, or solids) and can be heard when they reach a person's or animal's ear.

An ultrasound is a medical imaging technique that uses high-frequency sound waves to create images of organs and structures inside the body.

Reflection occurs when waves bounce back after hitting a barrier or surface, such as sound waves bouncing off tissues during an ultrasound.

Electromagnetic waves are waves that can travel through the vacuum of space and include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

X-rays are a type of electromagnetic wave that can pass through soft tissues but are absorbed by denser materials like bones, allowing for imaging of internal structures.

Wi-Fi is a technology that uses radio waves to provide wireless high-speed internet and network connections.

Sonar (Sound Navigation and Ranging) is a technique that uses sound propagation to navigate, communicate, or detect objects underwater.

Absorption occurs when waves are taken in by a material, while transmission is when waves pass through a material without being absorbed.

Radio waves are a type of electromagnetic wave with longer wavelengths, used for communication, including broadcasting and Wi-Fi.

Ultrasound imaging works on the principle of sending sound waves into the body and measuring the echoes that return to create an image.