Electromagnetic Waves | Electricity | Physics | FuseSchool

The video introduces the electromagnetic spectrum, explaining its components from radio waves to gamma rays. It covers the uses and properties of each type of wave, such as radio waves for communication, microwaves for cooking and satellite communication, infrared for heat detection, visible light for color perception, ultraviolet for tanning and lighting, and x-rays and gamma rays for medical imaging and treatment.

What is the primary use of radio waves?

• Radio and TV communication

• Detecting heat

• Medical imaging

• Heating food

How do microwaves heat food?

• By emitting visible light

• By reflecting off the ionosphere

• By making water molecules vibrate

• By penetrating deep into the food

Which part of the spectrum is used in fiber optic communication?

• Gamma rays

• Infrared

• Ultraviolet

• Visible light

What is a common effect of ultraviolet light on human skin?

• It makes skin transparent

• It cools the skin

• It makes skin glow in the dark

• It causes skin to tan

What is a medical use of x-rays?

• Tanning skin

• Cooking food

• Imaging and CT scans

• Detecting heat