1. What is solar system?
Answer variants:
Uranus
Mercury
Neptune
Jupiter
Earth
Saturn
Venus
Mars
The solar system comprises the . Based on their distance from the Sun, they are arranged as,
(Arrange the planets from left to right)
The eight planets in the solar system are and are categorised as and .
2. Define orbital velocity.
The imparted to a at the determined height to make a around the planet is called orbital velocity.
A satellite's from the Earth determines its orbital velocity. The value of orbital velocity should be if the satellite is to the Earth.