sun

Question 1

movement of an object in a circular/elliptical course around another object

Answer 1

revolution

Question 2

circular motion of an object around its center

Answer 2

rotation

Question 3

unit of measurement
distance from the center of the earth to the center of the sun

Answer 3

astronomical unit

Question 4

luminous spheroid of plasma held together by self-gravity

Answer 4

star

Question 5

center of the solar system; massive hot ball of plasma inflated by energy

Answer 5

sun

Question 6

shows the position of the sun at the same time of so many days

Answer 6

analemma

Question 7

converts hydrogen into helium by reactions with carbon, nitrogen, and oxygen

Answer 7

thermonuclear fusion

Question 8

balance between inward gravity force and outward hot gas

Answer 8

hydrostatic equilibrium

Question 9

cooler and darker spots on the suns surface

Answer 9

sunspots

Question 10

suns equator rotates faster than the poles of the sun

Answer 10

differential rotation

Question 11

convection from inside the sun causes the photosphere to be divided into cells

Answer 11

granules

Question 12

dense clouds of material above syns surface by magnetic loops

Answer 12

solar prominences

Question 13

large explosions on the surface of the sun

Answer 13

solar flares

Question 14

huge bubbles of gas threaded with magnetic field lines

Answer 14

Coronal Mass Ejections

Question 15

continuous flow of charged particles from the sun in every direction

Answer 15

solar wind

Question 16

layer where hydrogen fusion occurs

Answer 16

core

Question 17

layer where energy from the core radiates outward to a distance of 0.7

Answer 17

radiative zone

Question 18

layer where responsible for energy transport to the suns outer layers

Answer 18

convection zone

Question 19

layer where sun emits most of its visible light

Answer 19

photosphere

Question 20

layer where its hotter, less dense gas and has a reddish color

Answer 20

chromosphere

Question 21

layer where gases are hot but have the lowest density

Answer 21

corona

Question 22

What are the 3 most common elements in the sun?

Answer 22

Hydrogen
Helium
Magnesium

Question 23

Why is the sun’s core the perfect environment for fusion to occur

Answer 23

The very high temperature and pressure in the sun’s core allows the nuclear reaction fusion to occur.

Question 24

What happens during a solar maximum?

Answer 24

large numbers of sunspots appear, and the solar irradiance output grows by about 0.07%.

Question 25

What happens during a solar minimum?

Answer 25

the Sun has the least sunspots

Question 26

How long is the cycle from one solar minimum to another?

Answer 26

about 11 years

Question 27

Do sunspots move?

Answer 27

Yes, they move in the direction of its magnetic field lines

Question 28

Are sunspots hotter or cooler than the surrounding surface of the sun?

Answer 28

cooler

Question 29

Does the sun output more or less energy during a period of maximum number of sunspots vs minimum number of sunspots?

Answer 29

More energy during a maximum number of sunspots

Less when during a minimum number of sunspots

Question 30

Tangling is caused by the _____ of the sun?

Answer 30

differential rotation rates

Question 31

Which layer of the 3 most outer layers do we see when we look at the sun?

Answer 31

corona

Question 32

What natural protection does earth have from coronal mass ejection?

Answer 32

Earth’s magnetosphere, ionosphere, and atmosphere

Question 33

What causes auroras?

Answer 33

the ions of the solar wind collide with atoms of oxygen and nitrogen from Earth’s atmosphere

Question 34

How often does solar wind occur?

Answer 34

once every 27 days

Question 35

Where does solar wind come from?

Answer 35

created by the outward expansion of plasma (a collection of charged particles) from the Sun’s corona (outermost atmosphere).

Question 36

Whats the difference between granules and sunspots?

Answer 36

Solar granules cover the entire photospheric surface, except where there are sunspots.

Question 37

Whats the difference between solar flare and coronal mass ejection?

Answer 37

solar flare is a brilliant flash of light. A CME is an immense cloud of magnetized particles hurled into space in a particular direction, sometimes toward Earth.