Plasma

Definition

Plasma is a state of matter consisting of a hot, ionized gas with equal numbers of positive ions and free electrons. It is the most common state of matter in the universe, making up stars including our Sun.

5 Must Know Facts For Your Next Test

1. Plasma makes up the Sun's core and is responsible for nuclear fusion reactions.
2. The Sun's plasma is primarily composed of hydrogen and helium ions.
3. Magnetic fields in the Sun influence the behavior and movement of plasma, leading to phenomena like solar flares.
4. The temperature in the Sun’s core where plasma exists can reach around 15 million degrees Celsius.
5. Plasma allows for the conduction of electricity within the Sun, contributing to its magnetic activity.

Review Questions

• What role does plasma play in the nuclear fusion processes occurring in the Sun?
• How do magnetic fields affect plasma within the Sun?
• What are the primary components found in solar plasma?

Related terms

Nuclear Fusion:

A process where nuclei combine at extremely high temperatures and pressures to form a heavier nucleus, releasing energy.

Solar Flare:

A sudden eruption of intense high-energy radiation from the sun's surface associated with magnetic activity involving plasma.

Magnetic Field:

A region around a magnetic material or moving electric charge within which magnetic forces are exerted; crucial in shaping solar phenomena involving plasma.