The Sun

The sun converts matter into energy in the

• corona.

• radiative zone

• convection zone

• core

Most of the sun’s energy is a result of

• nuclear fusion  

• nuclear fission

• atomic reactions

• coronal mass ejection

When hydrogen nuclei fuse into helium nuclei

• the nuclei die.

• energy is released.

• particles collide

• particles neutralize.

Which of the following is NOT a solar ejection?

• solar flare

• prominence

• sunspot

• coronal mass ejection

What is the hottest layer of the sun’s atmosphere called?

• convective zone

• corona

• radiative zone

• photosphere

What elements make up most of the sun’s mass?

• carbon and oxygen

• carbon and hydrogen

• helium and nitrogen

• hydrogen and helium

Particles thrown off the sun’s corona that can affect Earth’s magnetic field are called

• a coronal mass ejection.

• a coronal mass reflection

• nuclear fusion

• sunspots

During nuclear fusion in the sun, which of the following occurs?

• Atomic nuclei split apart.

• The aurora australis appears.

• hydrogen nuclei combine to produce a helium nucleus.

• A solar eclipse results

What is a prominence on the sun?

• a part of the sun’s corona, a cloud of colored gas

• a disturbance in the sun’s atmosphere; an arched, glowing cloud of gas

• a part of the convective zone, a cool area with powerful magnetic fields

• a magnetic disruption in the sun’s photosphere

What is the name for this giant loop of energy leaping from the solar surface? 

• aurora

• prominence

• solar flare

• sunspot