Sun and Solar System Formation

Question 1

In this phase, speed and angular momentum increase, matter in the center coalesces and forms

Accepted Answer

Protostar Phase

Question 2

When we see visible light from the sun, it appears from which layer?

Accepted Answer

photosphere

Question 3

Which of the following statement about the Sun's rotation is TRUE?

Accepted Answer

The sun's core rotates like a solid though made of plasma

Question 4

Hot bursts of gas that originate in the chromosphere are...

Accepted Answer

spicules

Question 5

Which theory states Jovian planets form from an inward collapse of gas with no rocky core?

Accepted Answer

gravitational instability

Question 6

The Sun is about ___ years old.

Accepted Answer

4.67 billion

Question 7

____ are bright spots on the sun caused by magnetic field crowding inwards.

Accepted Answer

plages

Question 8

In this phase of formation solid particles begin to coalesce into objects with rocky cores

Accepted Answer

Terrestrial Phase

Question 9

Which layer of the sun's atmosphere is only visible as a thin pink line from Earth?

Accepted Answer

chromosphere

Question 10

In this phase the inner system forms heavy elements, the outer system light elements.

Accepted Answer

Protoplanetary Disc Phase

Question 11

Which of the following layers of the sun is coolest on average?

Accepted Answer

photosphere

Question 12

A complete active sun solar cycle takes ____ years.

Accepted Answer

22

Question 13

In the sun, inward gravitational force is blanced by outward pressure in a state of...

Accepted Answer

hydrostatic equilibrium

Question 14

What is central region of the sun where fusion takes place?

Accepted Answer

Thermonuclear Core

Question 15

In this phase of formation, mass in the outer ring forms larger but slowly accreting objects

Accepted Answer

Jovian Phase

Question 16

Which layer of the Sun's atmosphere is the hottest on average?

Accepted Answer

corona

Question 17

The diameter of the sun is approximately ___ times that of Earth.

Accepted Answer

100

Question 18

What affect is caused by solar wind hitting Earth?

Accepted Answer

auroras

Question 19

The star begins nuclear fusion in this phase of solar system formation.

Accepted Answer

Solar System Phase

Question 20

The source of the Sun's energy is...

Accepted Answer

thermonuclear fusion

Question 21

Which of the following is NOT produced in the sun's core?

Accepted Answer

electrons

Question 22

In this phase of solar system formation the region of dust and gas collapses in on itself

Accepted Answer

Solar Nebula Phase

Question 23

Which theory states Jovian planets have rocky cores that attract light particles?

Accepted Answer

core-accretion

Question 24

What is the difference between a prominence and a filament?

Accepted Answer

They are the same phenomena just viewed from different angle

Question 25

The average surface temperature of the sun is...

Accepted Answer

5800 K

Question 26

The mass of all objects around the sun combined would only be about ___ of its total mass.

Accepted Answer

0.1 to 0.2%

Question 27

Which of the following is NOT true of solar flares?

Accepted Answer

Solar flares last three to four days

Question 28

The majority of the the sun's mass is...

Accepted Answer

hydrogen

Question 29

Plasma clouds on the surface of the sun are...

Accepted Answer

granules

Question 30

Why do sunspots appear dark?

Accepted Answer

they are cooler than the surrounding areas of the sun

Sun and Solar System Formation

Questions 30

Sun and Solar System Formation

Questions 30