The Sun as a Star Quiz

What is the Sun mainly made of?

• Helium and Neon

• Carbon and Silicon

• Hydrogen and Helium

• Oxygen and Nitrogen

What is the process by which stars create their own light and heat energy?

• Combustion

• Chemical Reaction

• Nuclear Fusion

• Nuclear Fission

What is the colour of the hottest star?

• Yellow

• Red

• Green

• Blue

What is the unit used by physicists to measure astronomical distances?

• Mile

• Kilometer

• Meter

• Light-Year

What prevents a star from collapsing under its gravity?

• Nuclear Fusion

• Nuclear Fission

• Combustion

• Pressure from energy release

Which star is nearest to the Solar System?

• Arcturus

• Rigel

• Sirius

• Alpha Centauri

One light year is equal to:

• 12 million million kilometres

• 9.5 million million kilometres

• 5.5 million million kilometres

• 9 million kilometres

Scientists use the light-year to describe the relationships between objects in space. What does a light-year measure?

• the distance that light can travel in one year

• the brightness of light that travels through space

• the number of years it takes light to travel to Earth

• the time it takes light to travel 1 million km

Write down the nuclear reaction equation for the fusion process that is happening in stars.

What is the speed of light?