Table of Contents
- 1 How is energy transported through the sun?
- 2 How does energy travel through a star?
- 3 What layer of the sun is energy transferred?
- 4 How does energy transport from the center of the sun to the surface of the sun quizlet?
- 5 How long does it take for the sun energy to get to the Earth?
- 6 How much energy from the Sun reaches Earth?
How is energy transported through the sun?
Energy is transported by convection in the outer regions of the Sun (the outer 30 percent, or so). Energy is transported by radiative diffusion in the inner regions of the Sun (the inner 70 percent).
How energy travels through each layer of the sun?
The energy released in the core travels extremely slowly through the radiative zone. The convection zone surrounds the radiative zone. In the convection zone, hot material from near the Sun’s center rises, cools at the surface, and then plunges back downward to receive more heat from the radiative zone.
How does energy travel through a star?
There are basically three ways by which energy flows outward through a star. They are conduction, convection, and radiation. This organized churning is called convection. In the interior of stars, when convection takes place it dominates the transport of energy over radiation.
How does energy transport from the center of the sun to the surface of the sun?
Fusion of hydrogen occurs in the center of the Sun, and the energy generated is carried to the surface by radiation and then convection.
What layer of the sun is energy transferred?
Unit 4, Lesson 3: The Sun
| A | B |
|---|---|
| chromosphere | middle layer of the sun’s atmosphere |
| photosphere | visible surface of the sun |
| convection zone | layer of the sun which energy travels by convection from the radiative zone to the photosphere |
| radiative zone | layer of the sun which energy is transferred away from the core by radiation |
How does energy transport?
There are 3 ways to transport energy in general: Radiation: Energy is carried by photons. Convection: Energy carried by bulk motions of gas. Conduction: Energy carried by particle motions.
How does energy transport from the center of the sun to the surface of the sun quizlet?
Energy is transported from the center of the Sun to the surface by? radiation; convection only in the outer layers. How does the Sun’s overall magnetic field behave? The northern and southern hemispheres have opposite magnetic polarity, and this polarity reverses every 11 years.
How does the sun get its heat?
The core of the sun is so hot and there is so much pressure, nuclear fusion takes place: hydrogen is changed to helium. Nuclear fusion creates heat and photons (light). The amount of solar heat and light is enough to light up Earth’s days and keep our planet warm enough to support life.
How long does it take for the sun energy to get to the Earth?
The short answer is that it takes sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth. If the Sun suddenly disappeared from the Universe (not that this could actually happen, don’t panic), it would take a little more than 8 minutes before you realized it was time to put on a sweater.
How does the energy from the Sun reaches the Earth?
The sun’s radiant energy reaches the earth’s surface either directly through radiation, indirectly through convection, or it can move “across” or “through” objects or materials on the surface via conduction.
How much energy from the Sun reaches Earth?
This radiation is the energy that heats the Earth. The sun’s surface emits about 63 million watts of energy per square meter. By the time the energy reaches the Earth, after traveling 150 million kilometers, or 93 million miles, it has diminished to 1,370 watts per square meter at the top of the atmosphere directly facing the sun.
Does energy from the sun reach Earth by convection?
Since space is almost completely empty so the heat energy of the sun reaches the earth by radiation only. Therefore there is no energy of the sun reach the earth by conduction and convection.