Stars, Galaxies And The Universe - Vocabulary

Question 0

Energy that travels through space in waves

Answer 0

electro – magnetic radiation

Question 1

A device that makes distant objects appear to be closer. It allows us to see distant objects in space

Answer 1

Telescope

Question 2

The light we can see; a type of electromagnetic radiation

Answer 2

Visible light

Question 3

The distance between the crest of one wave and the crest of the next wave

Answer 3

Wavelength

Question 4

The range of different colors with different wavelengths

Answer 4

Spectrum

Question 5

A telescope that uses lenses or mirrors to collect and focus visible light

Answer 5

Optical telescope

Question 6

A telescope that uses convex lenses together in focus light

Answer 6

Refracting telescope

Question 7

A piece of transparent glass, curve so that the middle is bigger then the edges

Answer 7

Convex lens

Question 8

A telescope that uses a curved mirror to collect and focus light. The larger the mirror, the more light the telescope can collect

Answer 8

Reflecting telescope

Question 9

A device used to detect radio waves from objects in space. It has a curved, reflecting surface and focuses radio waves the way the near focuses light waves.

Answer 9

Radio telescope

Question 10

The building that contain one or more telescopes. Many are located on mountaintops, but some are located in space

Answer 10

Observatory

Question 11

Imaginary patterns of stars

Answer 11

Constellations

Question 12

I device that breaks light into colors and produces an image of the resulting spectrum. It is used to determine the elements found in stars.

Answer 12

Spectrograph

Question 13

The stars brightness as seen from Earth. It can be measured by electronic devices

Answer 13

Apparent brightness

Question 14

The brightness of the star would have if it were at a standard distance from the earth. It is more difficult to find a stars absolute brightness then it’s apparent brightness

Answer 14

Absolute brightness

Question 15

The distance that light travels in one year, about 9.5 million kilometers

Answer 15

Light – year

Question 16

The apparent change in position of an object when you look at it from different places

Answer 16

Parallax

Question 17

A diagram that compares the stars brightness to its temperature, used to classify stars

Answer 17

Hertzsprung- Russell diagram

Question 18

The area on the H – R diagram where most of the stars are located

Answer 18

Main sequence

Question 19

A large cloud of gas and dust spread out in any meds volume: the beginning of the story

Answer 19

Nebula

Question 20

A contracting cloud of gas and dust with enough mass to form a star; the earliest stage of a stars life

Answer 20

Protostar

Question 21

The blue-white Hot core of a star that is left behind after its outer layers have expanded and drifted out into space

Answer 21

White dwarf

Question 22

The brilliant explosion of a dying supergiant star

Answer 22

Supernova

Question 23

A star formed from the remains after a supergiant explode

Answer 23

Neutron stars

Question 24

A rapidly spinning neutron star that sends out regular pulses of radio waves

Answer 24

Pulsars

Question 25

An object is gravity is so strong, but nothing pother not even light, can escape. The most massive stars become black holes when they die.

Answer 25

Black hole

Question 26

Star systems that have two stars

Answer 26

Binary stars

Question 27

I galaxy that appears to have a bulge in the middle and arms that spiral outward like pinwheels. The Milky Way galaxy is a spiral galaxy.

Answer 27

Spiral galaxies

Question 28

A galaxy that looks like a round or flat and ball. It contains billions of stars but have little gas and dust between the stars

Answer 28

Elliptical galaxies

Question 29

A galaxy that doesn’t have a regular shape. It is typically smaller than other types of galaxies.

Answer 29

Irregular galaxies

Question 30

And enormously bright, distant galaxy with a giant black hole at it center

Answer 30

Quasars

Question 31

A spiral galaxy with a bright line or bar of stars running through it

Answer 31

Barred spiral

Question 32

All of space and everything in it

Answer 32

Universe

Question 33

Away to write very large or very small numbers in a shorter form, by using the powers of 10

Answer 33

Scientific notation

Question 34

The initial explosion that resulted in the formation and development of the universe

Answer 34

Big Bang

Question 35

Describes the relationship between the distance to a galaxy and it’s speed. The further away a galaxy is, the faster it is moving away from us.

Answer 35

Hubbles law

Question 36

A large cloud of gas and dust such as the one that formed our solar system

Answer 36

Solar nebula

Question 37

One of the small astroid like the bodies that forms the building blocks of the planet

Answer 37

Planetesimals

Question 38

Matter that does not give off electromagnetic radiation but is quite abundant in the universe

Answer 38

Dark matter

Question 39

Mysterious force it appears to be causing the expansion of the universe to accelerate

Answer 39

Dark energy