Square Kilometer Array (SKA)

Description: The Square Kilometer Array (SKA) is a next-generation radio telescope that will be the world's largest and most sensitive radio telescope. It will be built in two phases, with the first phase, SKA1, being completed in the early 2020s and the second phase, SKA2, being completed in the late 2020s. The SKA will be used to study a wide range of astronomical phenomena, including the formation and evolution of galaxies, the nature of dark matter and dark energy, and the search for extraterrestrial life.
Number of Questions: 14
Created by:
Tags: ska radio astronomy astronomy astrophysics
Attempted 0/14 Correct 0 Score 0

What is the Square Kilometer Array (SKA)?

  1. A next-generation radio telescope

  2. A space telescope

  3. A particle accelerator

  4. A supercomputer


Correct Option: A
Explanation:

The SKA is a next-generation radio telescope that will be the world's largest and most sensitive radio telescope.

When will the SKA be completed?

  1. Early 2020s

  2. Late 2020s

  3. Early 2030s

  4. Late 2030s


Correct Option:
Explanation:

The SKA will be built in two phases, with the first phase, SKA1, being completed in the early 2020s and the second phase, SKA2, being completed in the late 2020s.

Where will the SKA be built?

  1. Australia and South Africa

  2. Chile and Argentina

  3. China and India

  4. United States and Canada


Correct Option: A
Explanation:

The SKA will be built in two phases, with the first phase, SKA1, being built in Australia and the second phase, SKA2, being built in South Africa.

What will the SKA be used to study?

  1. The formation and evolution of galaxies

  2. The nature of dark matter and dark energy

  3. The search for extraterrestrial life

  4. All of the above


Correct Option: D
Explanation:

The SKA will be used to study a wide range of astronomical phenomena, including the formation and evolution of galaxies, the nature of dark matter and dark energy, and the search for extraterrestrial life.

How many dishes will the SKA consist of?

  1. 100,000

  2. 1,000,000

  3. 10,000,000

  4. 100,000,000


Correct Option: B
Explanation:

The SKA will consist of 1,000,000 dishes, each of which is 15 meters in diameter.

What is the total collecting area of the SKA?

  1. 1 square kilometer

  2. 10 square kilometers

  3. 100 square kilometers

  4. 1,000 square kilometers


Correct Option: A
Explanation:

The total collecting area of the SKA will be 1 square kilometer.

What is the sensitivity of the SKA?

  1. 10 times more sensitive than the Hubble Space Telescope

  2. 100 times more sensitive than the Hubble Space Telescope

  3. 1,000 times more sensitive than the Hubble Space Telescope

  4. 10,000 times more sensitive than the Hubble Space Telescope


Correct Option: D
Explanation:

The SKA will be 10,000 times more sensitive than the Hubble Space Telescope.

What is the angular resolution of the SKA?

  1. 1 arcsecond

  2. 0.1 arcsecond

  3. 0.01 arcsecond

  4. 0.001 arcsecond


Correct Option: D
Explanation:

The angular resolution of the SKA will be 0.001 arcsecond.

What is the frequency range of the SKA?

  1. 50 MHz to 10 GHz

  2. 10 GHz to 30 GHz

  3. 30 GHz to 100 GHz

  4. 100 GHz to 300 GHz


Correct Option:
Explanation:

The frequency range of the SKA will be 50 MHz to 300 GHz.

How much data will the SKA produce?

  1. 1 exabyte per day

  2. 10 exabytes per day

  3. 100 exabytes per day

  4. 1,000 exabytes per day


Correct Option: C
Explanation:

The SKA will produce 100 exabytes of data per day.

How many scientists will work on the SKA?

  1. 1,000

  2. 10,000

  3. 100,000

  4. 1,000,000


Correct Option: B
Explanation:

10,000 scientists will work on the SKA.

How much will the SKA cost?

  1. $1 billion

  2. $10 billion

  3. $100 billion

  4. $1 trillion


Correct Option: B
Explanation:

The SKA will cost $10 billion.

When will the SKA be operational?

  1. 2020

  2. 2025

  3. 2030

  4. 2035


Correct Option: C
Explanation:

The SKA will be operational in 2030.

What are some of the scientific goals of the SKA?

  1. To study the formation and evolution of galaxies

  2. To understand the nature of dark matter and dark energy

  3. To search for extraterrestrial life

  4. All of the above


Correct Option: D
Explanation:

The SKA has a wide range of scientific goals, including studying the formation and evolution of galaxies, understanding the nature of dark matter and dark energy, and searching for extraterrestrial life.

- Hide questions