Question
Which data is needed to calculate the average orbital speed of a satellite around a planet?
key
\(\checkmark=\) needed
\(x=\) not needed
▶️Answer/Explanation
Ans:B
Question
Which planet in our Solar System is nearest to the Sun and what is the nature of the planet?
▶️Answer/Explanation
Ans: A
Question
Which statement about the Solar System is correct?
A All the planets are rocky.
B Only the Earth has a moon.
C Pluto is a dwarf planet.
D There are many stars in the Solar System.
▶️Answer/Explanation
Ans:C