1. What is solar system?
Answer variants:
Jupiter
Venus
Mercury
Uranus
Earth
Neptune
Saturn
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.