Stars and Milky Way

Why is the Milky Way called by its name?

• ancient people thought it was milk

• the name described the galaxy’s appearance from earth

• It gets its name from a Greek myth about Hera who sprayed milk across the sky

• It’s made of milk

which one is the accurate representation of the Suns position

• A

• B

• C

• None of these

The Milky Way galaxy is about____light years across

• 100000 light years

• 10,000 years

• 1000000 years

• 25 light years

The Milky Way galaxy rotates like a huge pinwheel in space at

(a)  

The Sun in its position about __ from the centre of the galaxy

• 25 light years years

• 1000000 light years

• 245 years

• 34 light years

The sun travels at a speed of_____km/h

• 23456km/h

• 838,000km/h

• 4140000km/h

• 828,000km/h

How long does it take for the sun to go around the Milky Way once?

• 225 and 250 million light years

• 225 and 250 million years

• 22.5 and 25 thousand light years

• None of these

What are stars?

• Large celestial bodies that are mostly composed of hydrogen and helium and generate light and heat in their centres from churning nuclear forges.

• Huge celestial bodies that are mostly composed of hydrogen and helium and generate light and heat in their non centre’s from churning nuclear forges.

• Large celestial bodies that are mostly composed of hydrogen and nitrogen and generate light and heat in their centres from churning nuclear forges.

• Large celestial bodies that are mostly composed of hydrogen and carbon dioxide and generate light and heat in their centres from churning nuclear forges.

How was the Milky Way formed?

• Huge clouds of gas and dust gathered under the influence of gravity roughly 27 billion years ago, forming the Milky Way galaxy. Two structures gradually appeared: first, a wide spherical "halo," and then, a dense, luminous disc.

   

• Huge clouds of gas and dust gathered under the influence of gravity roughly 14 billion years ago, forming the Milky Way galaxy. Two structures gradually appeared: first, a wide rectangular "halo," and then, a dense, luminous disc.

   

• Huge clouds of gas and dust gathered under the influence of gravity roughly 14 billion years ago, forming the Milky Way galaxy. Three structures gradually appeared: first, a wide spherical "halo," and then, a dense, luminous disc.

   

• Huge clouds of gas and dust gathered under the influence of gravity roughly 14 billion years ago, forming the Milky Way galaxy. Two structures gradually appeared: first, a wide spherical "halo," and then, a dense, luminous disc.

   

Where is the Milky Way

• In space

• In solar system

• In a star

• In the earth