Sun Structure and Rotation Flashcards

Questions and Answers

What is the radiative zone?

The layer where heat is generated through nuclear fusion.

The outer layer of the sun where photosynthesis occurs.

The layer of the sun through which energy is transferred away from the core by radiation. (correct)

The layer responsible for solar flares.

What is the convective zone?

The sun's surface.

The region where solar wind originates.

The layer where energy travels by conduction.

The layer of the sun through which energy travels by convection. (correct)

The sun rotates on its axis like other solid bodies.

False

How does the sun rotate compared to the Earth?

The sun rotates faster at its equator than at higher latitudes. Signup and view all the answers

Near the equator, the sun rotates once in about ______ days.

25 Signup and view all the answers

At the poles, the sun rotates once in about ______ days.

35 Signup and view all the answers

What is differential rotation?

The rotation of a body in which different parts have different periods of rotation. Signup and view all the answers

The sun's core and radiative zone rotate together at the same speed as Earth's rotation.

True Signup and view all the answers

Study Notes

Radiative Zone

Energy is transferred from the sun's core to the outer layers via radiation in the radiative zone.
This layer is crucial for energy movement before reaching the convective zone.

Convective Zone

The convective zone allows energy to travel through convection from the radiative zone to the photosphere.
This layer is characterized by convective currents that rise and fall, carrying energy.

Sun's Rotation

The sun rotates on its axis, similar to other celestial bodies.
Unlike solid objects, the sun, being a massive gas ball, exhibits non-uniform rotation.

Differential Rotation

Different parts of the sun rotate at varying speeds; this phenomenon is known as differential rotation.
At the equator, the rotation period is about 25 days, while at the poles it takes approximately 35 days.

Internal vs. Surface Rotation

The sun's interior (core and radiative zone) rotates at a consistent speed, akin to solid bodies like Earth.
There is a distinct difference between the rotation rates of the sun's interior and exterior surfaces.

Description

This quiz focuses on the layers of the sun, including the radiative and convective zones, as well as an introduction to the sun's rotation. It provides essential definitions and processes associated with solar energy transfer. Perfect for students studying solar physics or astronomy.