Chapter-12 Universe — Online MCQ Test
SCIENCE · Samacheer Kalvi 9th · Tamil Nadu State Board
Practice Chapter-12 Universe with a free chapter-wise online MCQ test.
This chapter covers: Description Introduces the solar system stars galaxies and space exploration Keywords Solar System Galaxy Stars Astronomy Universe.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter-12 Universe — Important Questions & Answers
Which of the following is the nearest star to the Earth?
- A. Sirius
- B. The Sun
- C. Polaris
- D. Alpha Centauri
Answer: B. The Sun
The Sun is the closest star to Earth and provides us with light and heat.
The Sun is the closest star to Earth and provides us with light and heat.
What is the name of the system that includes the Sun, planets, moons, and other objects?
- A. Galaxy
- B. Universe
- C. Solar System
- D. Constellation
Answer: C. Solar System
The Solar System consists of the Sun and all celestial bodies that revolve around it.
The Solar System consists of the Sun and all celestial bodies that revolve around it.
Which planet is known as the Red Planet?
- A. Venus
- B. Mars
- C. Jupiter
- D. Mercury
Answer: B. Mars
Mars appears reddish because of iron oxide present on its surface.
Mars appears reddish because of iron oxide present on its surface.
A student observes a bright object in the sky that changes its position among the background stars over several nights. What is it most likely?
- A. A planet
- B. A constellation
- C. A galaxy
- D. A meteor shower
Answer: A. A planet
Planets change position against the background stars because they revolve around the Sun.
Planets change position against the background stars because they revolve around the Sun.
Which of the following is the best reason for using space probes in astronomy?
- A. To create artificial satellites around Earth
- B. To study celestial bodies directly and send information back to Earth
- C. To make stars brighter at night
- D. To stop the movement of planets
Answer: B. To study celestial bodies directly and send information back to Earth
Space probes are sent to explore planets and other bodies and transmit useful scientific data to Earth.
Space probes are sent to explore planets and other bodies and transmit useful scientific data to Earth.