Astronomy

Question 1

The average distance between sun and Earth is called astonomical unit.

Answer 1

True.

Question 2

The distance light goes in one year is ..?

Answer 2

Light-year.

C:\Users\Monea Takara\Pictures\light year.jpg

Question 3

What is a parsec ?

C:\Users\Monea Takara\Pictures\parasec.gif

Answer 3

A unit to describe large distances.

Question 4

What is a nebula ?

Answer 4

A cloud of gas and dust.

Question 5

Constellation is a grouping of stars in a reconizable pattern.

Answer 5

True.

C:\Users\Monea Takara\Pictures\constellations.jpg

Question 6

Matter in disks clumped together into small masses are called ..?

Answer 6

Planetesimal.

Question 7

What is a protoplanetary ?

Answer 7

Moon-sized or larger planetary embryos within disks.

Question 8

A nuclear reaction to form a heavier nucleus with the release of energy is a cosmologist.

Answer 8

False. It is a nuclear fusion.

C:\Users\Monea Takara\Pictures\nuclear fusion.jpg

Question 9

What is a terrestrial planet ?

Answer 9

The four innermost planets in the solar system.

Question 10

A large planet characterized by being almost entirely made of gas is …?

Answer 10

Gas giant planets.

C:\Users\Monea Takara\Pictures\gas-giants.jpg

Question 11

What is a comet ?

Answer 11

A celestail body of dust and gas that may form a tail that streams away from the sun.

Question 12

What is a asteroid ?

Answer 12

A small rocky body orbiting the sun.

Question 13

An astronomer who studies evolution and space is called nuclear fusion.

Answer 13

False. It is a cosmologist.

C:\Users\Monea Takara\Pictures\cosmologist.jpg

Question 14

The rate of change of a angular position of a roatating body is a angular velocity.

Answer 14

True.

Question 15

The curved path, described by a planet, satellite, (etc.), around the sun is a…?

Answer 15

Orbit.

Question 16

The length, or portion of time, is called a period.

Answer 16

True.

Question 17

What does it mean to revolve ?

Answer 17

To move around in a circular orbit.

Question 18

Rotation is one complete turn of a body.

Answer 18

(True).

Question 19

What is a sidereal day ?

Answer 19

The time between two consecutive transits; Almost four days shorter than the solar day (because of the Earth’s obrital motion).

Question 20

A solar day is the time between two successive transits; the 24-hour interval (from midnight to midnight).

C:\Users\Monea Takara\Pictures\solar day.gif

Answer 20

True.

Question 21

[This] Year is 12 months, or 365 days.

Answer 21

False. It is the time in which any planet completes a revolution around the sun.

C:\Users\Monea Takara\Pictures\year.jpg