Chapter 10 Review - Astronomy

Question 1

A device which can be used to separate white light into its component colours.

Answer 1

Spectroscope.

Question 2

The type of electromagnetic radiation that we can see.

Answer 2

Visible.

Question 3

Our sun is one of the 100 billion stars in our __________.

Answer 3

Galaxy.

Question 4

A type of galaxy which looks like a pinwheel.

Answer 4

Spiral.

Question 5

This phenomenon is one of the most important pieces of evidence supporting the Big Bang theory - picked up by radio telescope as “noise”, or signal interference.

Answer 5

Background Radiation.

Question 6

More distant galaxies are moving away from each other ________ than galaxies which are closer to Earth.

Answer 6

Faster.

Question 7

__________ bodies are any things that can be seen in our sky, including the stars, planets, sun and moon.

Answer 7

Celestial.

Question 8

The type of electromagnetic radiation that is produced in nuclear explosions.

Answer 8

Gamma.

Question 9

The type of electro magnetic radiation that can give you a sunburn.

Answer 9

Ultraviolet.

Question 10

A star cluster containing as many as 1 million stars.

Answer 10

Globular.

Question 11

The name of our galaxy.

Answer 11

Milky Way.

Question 12

A scientist who studies outer space.

Answer 12

Astronomer.

Question 13

____________ radiation includes radio waves and visible light.

Answer 13

Electromagnetic.

Question 14

A star cluster with only a few hundred to a few tens of thousands of stars.

Answer 14

Open.

Question 15

Red shift is evidence that the universe is ________ in size.

Answer 15

Expanding.

Question 16

The type of electromagnetic radiation that can be used to look at your bones.

Answer 16

X-Rays.

Question 17

A galaxy with no particular shape.

Answer 17

Irregular.

Question 18

A spherical or oval shaped Galaxy.

Answer 18

Elliptical.

Question 19

This theory suggest that the modern universe was created as a result of a giant explosion.

Answer 19

Big Bang Theory.

Question 20

Famous Astronomer.

Answer 20

Hubble.

Question 21

A cloud of dust and gas in space.

Answer 21

Nebula.

Question 22

A type of electromagnetic radiation that is a form of heat energy.

Answer 22

Infrared.

Question 23

A type of electromagnetic radiation that we use to heat up food quickly.

Answer 23

Microwaves.

Question 24

The change in the observed wavelength produced by an object is called the ____________ effect.

Answer 24

Doppler.

Question 25

A type of electromagnetic radiation that we classify as AM or FM.

Answer 25

Radio waves.

Question 26

Acronym to remember planets in order.

Answer 26

My very educated mother just served us nine pizzas.

Question 27

How many stars are in our galaxy?

Answer 27

200 billion.

Question 28

Nebula names.

Answer 28

Orion, Ego, Corriben.

Question 29

Where are stars born?

Answer 29

Nebula.

Question 30

What colour is the hottest stars?

Answer 30

Blue.

Question 31

What colour is the coolest stars?

Answer 31

Red.

Question 32

What is not found in globular clusters but found everywhere else in the galaxy?

Answer 32

Iron, heavy elements.

Question 33

What is the relationship between mass and gravitational pull?

Answer 33

Greater mass = greater gravity.

Question 34

What makes up the majority of the mass of the universe?

Answer 34

Dark matter.

Question 35

What produces the gravity that holds the galaxy together?

Answer 35

Black Hole.

Question 36

What filled the space during the dark ages?

Answer 36

Dense clouds of hydrogen gas.

Question 37

After BB, what filled the universe?

Answer 37

Matter.

Question 38

How do most stars die?

Answer 38

Cosmic burps.