Astronomy Review

Front

What causes the different phases of the Moon?

Back

The Moon orbits around Earth, and its position relative to the Earth and Sun changes, causing the different phases.

Front

What is one true statement about the Milky Way galaxy?

Back

The Sun is one star that can be found in the Milky Way galaxy.

Front

What is the reason for the changing of seasons in the temperate zones of the United States?

Back

The tilt of Earth’s axis of rotation causes the changing of seasons.

Front

How does the Sun produce energy?

Back

The Sun produces energy through nuclear fusion, where four hydrogen atoms fuse into one helium atom.

Front

Besides hydrogen, which other element is most likely common in stars?

Back

Helium is the other element that is most likely common in stars.

Front

What is the definition of nuclear fusion?

Back

Nuclear fusion is the process where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What role does the Earth's axial tilt play in seasons?

Back

The Earth's axial tilt affects the angle and intensity of sunlight received at different latitudes, leading to seasonal changes.

Front

What is the composition of the Sun primarily made of?

Back

The Sun is primarily composed of hydrogen (about 74%) and helium (about 24%).

Front

What is the significance of the Milky Way galaxy in the universe?

Back

The Milky Way galaxy is significant as it is the galaxy that contains our solar system and billions of other stars.

Front

How long does it take for the Moon to complete one orbit around Earth?

Back

It takes approximately 27.3 days for the Moon to complete one orbit around Earth.