Waves and Technology

Front

What are sound waves?

Back

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.

Front

What is an ultrasound?

Back

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

Front

What does it mean for waves to be reflected?

Back

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

Front

What are electromagnetic waves?

Back

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.

Front

What is the function of X-rays in medical imaging?

Back

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.

Front

What is Wi-Fi?

Back

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

Front

What is sonar?

Back

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

Front

What is the difference between absorption and transmission of waves?

Back

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

Front

What are radio waves?

Back

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

Front

What is the principle behind ultrasound imaging?

Back

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