MEDIUM
8th CBSE
IMPORTANT
Earn 100

What is a light-year? The distance between the earth and the sun is 150×106 km. Express this distance in a light year.

Important Questions on Stars and the Solar System

EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 17 - Stars and the Solar System>ASSESSMENT ZONE>Q B
Mercury, Venus, Earth, and Mars are called _____ (inner/ outer) planets.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 17 - Stars and the Solar System>ASSESSMENT ZONE>Q C
The gravity of the earth is one-sixth of the moon.
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 17 - Stars and the Solar System>ASSESSMENT ZONE>Q C
The four inner planets are made of rocks.
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 17 - Stars and the Solar System>ASSESSMENT ZONE>Q G

Differentiate between the planet and star.

MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 17 - Stars and the Solar System>ASSESSMENT ZONE>Q G
An earth-sized planet is found to be 9 light-years away from earth. If you are travelling in a spaceship with speed 22 km/s, then how much time will you take to reach that plant?
HARD
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 17 - Stars and the Solar System>ASSESSMENT ZONE>Q G
What are the different kinds of objects that our solar system consists of? Describe each in one or two lines.