Quiz on Stars and Their Characteristics

What is a star primarily made of?

• Oxygen and carbon

• Hydrogen and helium

• Nitrogen and hydrogen

• Carbon dioxide and helium

What two conditions define a star?

• Magnetic field and high mass

• High temperature and light emission

• Self-gravity and radiation from fusion

• Spherical shape and orbiting planets

The Sun is classified as a:

• K-type star

• M-type star

• G-type star

• A-type star

The Milky Way galaxy contains approximately:

• 100 million stars

• 1 billion stars

• 100 billion stars

• 1 trillion stars

What instrument is used to observe distant stars?

• Microscope

• Telescope

• Periscope

• Barometer

Which telescope is famous for space observation?

• Galileo Telescope

• Kepler Scope

• Hubble Space Telescope

• Orion Viewer

What force causes gas clouds in space to condense into stars?

• Magnetism

• Gravity

• Radiation

• Pressure

What initiates fusion in a protostar?

• Collision of asteroids

• Increase in density, pressure, and temperature

• External magnetic field

• Presence of oxygen

The visible light and radiation we see from stars are mostly emitted from:

• The core

• Convection zone

• Magnetic field

• Starspots

What is the shape of the Milky Way galaxy?

• Spherical

• Spiral disk with bulge

• Irregular

• Elliptical