General Science 6th Class Chapter 12 Solar System Solved Exercise

General Science

6th Class

Chapter 12

Solar System

Questions

12.1 Encircle the correct option.

1. Which is the largest planet?

a. Earth        b. Mars        c. Jupiter        d. Venus

2. Which is the nearest planet to the Sun?

a. Saturn        b. Mercury        c. Venus        d. Earth

3. How long does it take for a geostationary satellite to complete one orbit?

a. one day        b. one week        c. one month        d. one year

4. Which of the following emits its own light?

a. Moon        b. Venus        c. Sun        d. Jupiter

5. Before which planet, does the Venus orbit?

a. Mercury        b. Mars        c. Earth        d. Saturn

6. The system that locates the position of an object on the Earth surface is:

a. GRS        b. GMS        c. GPS        d. PGS

7. The 1st artificial satellite was sent into space in:

a. 1945        b. 1955        c. 1957        d. 1962

8. Tail of comet points:

a. towards the Sun        b. away from the Sun

c. towards the Earth        d. away from the Earth

12.3 Briefly describe:

1. Characteristics of planets.

Ans.

i. Planets revolve around the sun.

ii. They do not shine with their own light.

2. Characteristics of asteroids.

Ans.

i. Asteroids are the pieces of rocks, metals or both the metals and rocks revolve around the Sun.

ii. Asteroids have different shapes and sizes.

3. Characteristics of comets.

Ans.

i. These are the lumps of frozen gases, rocks and dust particles.

ii. The comets revolve with very low speed and complete a revolution around the sun in a long time.

iii. They are only seen when they come close to the sun.

4. Characteristics of meteorites.

Ans.

i. It is a large meteorite.

ii. It hits the Earth's Surface without completely burning up.

iii. It makes a crater on the ground.