A satellite is an object that orbits around a larger object. In the context of space, a satellite is a man-made object that is launched into space and orbits the Earth or another celestial body. Satellites are used for various purposes, including communication, weather monitoring, navigation, scientific research, and more.
Types of Satellites
There are different types of satellites, each designed for specific functions:
Communication Satellites: These satellites are used to relay communication signals, including television, radio, and internet data, between different locations on Earth.
Navigation Satellites: These satellites are part of global navigation systems, such as GPS, and are used for determining the position, velocity, and time synchronization of objects on or near the Earth's surface.
Satellites are launched into space using rockets and placed into specific orbits around the Earth. Once in orbit, they remain in motion due to the balance between the gravitational pull of the Earth and their forward motion. They are powered by solar panels or onboard batteries and equipped with communication antennas, sensors, and other instruments to perform their intended functions.
Study Guide
If you are studying the topic of satellites, here are some key points to focus on:
The purpose and functions of satellites
The different types of satellites and their specific roles
How satellites are launched into space and placed into orbit
Concepts of Physical Science: A student should understand and be able to apply the concepts, models, theories, universal principles, and facts that explain the physical world. A student who meets the content standard should:
Develop an understanding of motions, forces, their characteristics and relationships, and natural forces and their effects.