Stars Nebulae and Galaxies

According to the H-R diagram above which of the stars below is the coolest?

• Vega

• Sun

• Arcturus

• Betelgeuse

A star is made up of dust and gas. Which two elements make up the majority of a star's mass?

• Hydrogen and Carbon

• Helium and Carbon

• Hydrogen and Helium

• Carbon and Nitrogen

Which statement about stars is correct?

• Star formation begins in a nebula.

• White dwarfs become main-sequence stars when they gain mass.

• Supergiants are stars that can absorb black holes.

• Main-sequence stars are formed by comets.

Tags

NGSS.HS-ESS1-3

Which of the following astronomical objects is a sphere of plasma that produces its own light?

• comet

• meteor

• star

• nebula

Tags

NGSS.HS-ESS1-1

What is a Nebula?

• A cloud of gas and dust where stars are formed

• A small, dim, hot star

• A huge structure that contains billions of stars, planets, gas and dust.

• A star and all the planets orbiting it.

Identify the picture.

• Pillars of Creation

• Worm Nebula

• Orion Nebula

• Caterpillar Nebula

Tags

NGSS.HS-ESS1-3

There is a nebula within the constellation Taurus, categorised as the remnant of a supernova containing a rapidly rotating pulsar. What is it named?

• Southern Owl Nebula

• Soap Bubble Nebula

• Little Ghost Nebula

• Crab Nebula

After billions of years, the hydrogen fuel of a star begins to run out and the star expands to become a (a)   .

• red giant

• white dwarf

• neutron star

• black hole

Tags

NGSS.HS-ESS1-3

Students were asked to describe the characteristics of nebulae and galaxies. The results of four student descriptions are given. Which student has the most accurate description of both nebulae and galaxies?

• Student A

• Student B

• Student C

• Student D

Four students are asked to describe a nebula and a star. Their responses are shown in the table below. Which student described these two celestial bodies correctly?

• Student 1

• Student 2

• Student 3

• Student 4