{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

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Stars are formed from big clouds of gas and dust is known as:

dust cloud

nebulae

neutron clouds

space fog

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The main force acting on a nebulae is:

microscopic adhesion

gravity

thermal expansion

singularities

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A star is born when

a nebula becomes a protostar

nuclear fusion starts

hydrogen is used up in fusion processes

gases in a nebula condense

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Check all answers that apply to a main sequence star:

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Which star has the highest temperature?

Regulus

Pollux

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Which star has the highest luminosity?

Procyon

Canopus

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What type of star is Mira?

Blue Giant

Red Giant

White Dwarf

Yellow Supergiant

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Why is Sirius B a white star and Spica a blue star?

They have different luminosities

Sirius B is a lower temperature than Spica

Sirius B is a white dwarf and Spica is a main sequence star

The color is random.

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What does the position of a star on the HR diagram indicate?

Its distance from Earth

Its temperature and luminosity

Its age and color

Its chemical composition

ON Life Cycle of Stars and HR Diagram Unit 5

ON Life Cycle of Stars and HR Diagram Unit 5

Stars are formed from big clouds of gas and dust is known as:

The main force acting on a nebulae is:

A star is born when

Check all answers that apply to a main sequence star:

Which star has the highest temperature?

Which star has the highest luminosity?

What type of star is Mira?

Why is Sirius B a white star and Spica a blue star?

What does the position of a star on the HR diagram indicate?

Stars are formed from big clouds of gas and dust is known as:

The main force acting on a nebulae is:

A star is born when

Check all answers that apply to a main sequence star:

Which star has the highest temperature?

Which star has the highest luminosity?

What type of star is Mira?

Why is Sirius B a white star and Spica a blue star?

What does the position of a star on the HR diagram indicate?