The Sun as a Star (IGCSE Physics)

The Sun is the biggest object in the Universe.

• TRUE

• FALSE

In the Milky Way, what Celestial Object is the biggest AFTER the Sun?

Answer explanation

After the Sun, the largest celestial body would be one of the planets in our solar system! The largest planet in our solar system is JUPITER!

The volume of the Sun is big enough for over a billion Earths to fit inside.

• TRUE

• FALSE

Answer explanation

It is big enough for a MILLION Earths to fit inside.

What are the 2 main elements found on the Sun?

• Hydrogen

• Helium

• Carbon

• Oxygen

• Nitrogen

Ten Jupiters would fit across the width of the Sun.

• TRUE

• FALSE

What type of nuclear reaction takes place on the Sun? Nuclear...

The Sun is made of gases.

• TRUE

• FALSE

The Sun is nearly at the end of its life.

• TRUE

• FALSE

Nuclear fission occurs in the centre of the Sun.

• TRUE

• FALSE

Answer explanation

Nuclear FUSION happens at the centre of the Sun.

Smaller nuclei combine to make larger ones in the core of the Sun.

• TRUE

• FALSE