Electromagnetic spectrum

The video tutorial explains the electromagnetic spectrum as a continuum, covering various types of electromagnetic radiation. It highlights the range from gamma rays with very small wavelengths to long waves emitted from cold matter in outer space, which can have wavelengths over 1,000,000 kilometers.

What is the electromagnetic spectrum considered as?

• A type of sound wave

• A single wavelength

• A continuum

• A collection of particles

Which type of electromagnetic radiation has wavelengths smaller than the size of an atom?

• Microwaves

• Gamma rays

• Infrared waves

• Radio waves

What is the characteristic of gamma rays in the electromagnetic spectrum?

• They have the longest wavelengths

• They are visible to the human eye

• They have wavelengths smaller than an atom

• They are the least energetic

Where are long waves, with wavelengths over 1,000,000 kilometers, typically emitted from?

• The Earth's core

• Cold matter in outer space

• The Sun

• Human-made devices

What is the maximum wavelength mentioned for long waves in the electromagnetic spectrum?

• 100 kilometers

• 1,000 kilometers

• 1,000,000 kilometers

• 10,000 kilometers