The Sun Test Flashcards
What is convection?
Transfer of heat via movement of a medium. (Boiling water)
What is conduction?
Transfer of heat via physical contact.
What is radiation?
Heat transfer via waves. (Fireplace)
What are the 6 layers of the Sun?
Core, radiative zone, convective zone, photosphere, chromosphere, and corona.
What state of matter are the atoms in the sun in?
Plasma.
What is the Sun made up of?
Helium and hydrogen.
Define sun spots.
Dark cool regions on the photosphere.
What are sunspots caused by?
Rotation, movement of plasma, and magnetic fields.
Define solar prominences.
Large arcs of glowing plasma.
What are solar prominences caused by?
Plasma particles getting pulled into magnetic fields.
Define solar flares.
Short, violent eruptions of electrically charged particles.
What are solar flares caused by?
Breaks in magnetic fields.
Define auroras.
Colored bands of light seen on Earth.
What are auroras caused by?
Electrically charged particles from solar wind, disturbing Earth’s magnetic field.
What protects the Earth from solar flares and coronal mass ejections?
It’s magnetic field, and partly because of its atmosphere.