Space physics

Topics

Choose a topic to revise

Sample objectives

What this unit covers

• The Solar System: Explain that the Solar System consists of: (a) a single star known as the Sun, (b) eight specific planets in their sequence from the Sun, (c) smaller celestial bodies that revolve around the Sun, including dwarf planets like Pluto and asteroids found in the asteroid belt, and (d) natural satellites that orbit the planets.
• Stars and the Universe: Understand that the Sun is the nearest star to Earth and that astronomical distances are measured in light-years, defined as the distance light travels in one year in a vacuum.
• Stars and the Universe: Calculate the duration it takes for light to cover significant distances, such as between celestial bodies in the Solar System.