BSS Year 11 Astrophysics Test 1

What is the name of our galaxy?

• Milky Way

• Orion

• Andromeda

• Solar System

What are the three main types of galaxies?

• Spiral, Elliptical, Irregular

• Square, Circular, Triangular

• Big, Bigger, Biggest

• Red, Blue, Green

What is the Big Bang theory?

• A popular TV show about nerdy scientists

• The prevailing cosmological model that explains the early development of the universe.

• A conspiracy theory about the origin of the universe

• A type of fireworks display

What is dark matter and dark energy?

• Dark matter is a hypothetical form of matter that is thought to make up about 85% of the matter in the universe, while dark energy is a mysterious force that is thought to make up about 68% of the universe and is causing its expansion to accelerate.

• Dark matter is a type of energy that emits darkness and causes the universe to shrink.

• Dark energy is a type of matter that is completely invisible and undetectable.

• Dark matter is a type of energy that absorbs light and prevents it from reaching Earth.

What is the redshift of galaxies?

• The redshift of galaxies is the shift of light towards shorter wavelengths.

• The redshift of galaxies is the shift of light towards longer wavelengths.

• The redshift of galaxies is the shift of light towards ultraviolet wavelengths.

• The redshift of galaxies is the shift of light towards higher frequencies.

What causes the phases of the moon?

• The relative positions of the sun, Earth, and moon.

• The phases of the moon are caused by the rotation of the Earth.

• The phases of the moon are caused by the magnetic field of the Earth.

• The phases of the moon are caused by the gravitational pull of the stars.

What is the difference between rotation and revolution of the Earth?

• Rotation is the Earth's movement around the moon, while revolution is the Earth's spinning on its axis.

• Rotation is the Earth moving in a circular path, while revolution is the Earth rotating on its axis.

• Rotation is the Earth spinning on its axis, while revolution is the Earth orbiting around the sun.

• Rotation is the Earth orbiting around the sun, while revolution is the Earth spinning on its axis.

How long does it take for the Earth to complete one full rotation on its axis?

• 48 hours

• 24 hours

• 12 hours

• 36 hours

What causes the change in seasons on Earth?

• Axial tilt of the Earth

• The rotation speed of the Earth

• The distance of the Earth from the sun

• The amount of rainfall on Earth

What is the Oort Cloud?

• A region of space where comets are believed to originate from

• A type of cloud formation in the outer solar system

• A cluster of stars near the edge of the Milky Way

• An asteroid belt between Mars and Jupiter