Astrology

Question 1

The Big Bang theory starts with…

Answer 1

Hot and dense matter

Question 2

The Big Bang theory had a ________ leading to a _______ of matter

Answer 2

Explosion, expansion

Question 3

Who theorised the Big Bang ?

Answer 3

Georges Lenaître

Question 4

The red shift provides evidence that

Answer 4

The galaxies are expanding and moving away from each other

Question 5

What does red-shift mean

Answer 5

The increase in wavelength of light from a distant galaxy moving away from Earth

Question 6

Galaxies appear red due to the fact that

Answer 6

They’re moving away form each other. This means the light is stretched and appears red.

Question 7

An larger red-shift indicates

Answer 7

The galaxy is moving away faster

Question 8

Red-shift is an example of

Answer 8

The Doppler effect

Question 9

What does CMBR mean?

Answer 9

Cosmic Microwave Background Radiation

Question 10

CMBR that is found in Earth’s atmosphere is thought to be residue from

Answer 10

The Big Bang theory ~13 billion years ago

Question 11

What was the same temperature over the world from CMBR

Answer 11

-270C

Question 12

What are two pieces of evidence for the Big Bang theory

Answer 12

-CMBR
-Red-shift

Question 13

What is dark matter

Answer 13

Mass in the universe that uses a gravitational pull on the universe

Question 14

____ of the universe is dark matter

Answer 14

68%

Question 15

Dark Matter has no

Answer 15

EMF Radiation

Question 16

What effect is ‘dark matter’ thought to have on our universe

Answer 16

Causing the universe to rotate faster

Question 17

If the amount of radiation absorbed is greater than the radiation emitted, the temperature of the object

Answer 17

Increases

Question 18

If the amount of radiation absorbed is less than the radiation emitted, the temperature of the object

Answer 18

Decreases

Question 19

If the amount of radiation absorbed is equal than the radiation emitted temperature of the object

Answer 19

Constant

Question 20

What two properties of emitted radiation does the temperature of a body determine?

Answer 20

Frequency and wavelength

Question 21

If the wavelength increases, the temperature

Answer 21

Increases

Question 22

If the intensity increases the temperature

Answer 22

Increases

Question 23

If the radius of the orbit decreases, the speed _______ as the gravitational attraction is ______.

Answer 23

increases, greater.

Question 24

In a main sequence star, hydrogen nuclei are fused together to form _________
This releases energy as heat and light.

Answer 24

helium

Question 25

A black dwarf doesn’t ______

Answer 25

emit (send out) any light or heat.

Question 26

As the helium fuel runs out, ____________
This causes its temperature to increase.

Answer 26

the outward forces reduce in size and the star collapses inwards.

Question 27

A white dwarf is formed, which is the_______

Answer 27

hot core of the star.

Question 28

All stars fuse …

Answer 28

hydrogen nuclei into helium in nuclear fusion.

Question 29

Larger stars fuse …

Answer 29

hydrogen nuclei into lithium and other light metals.

Question 30

A supernova produces …

Answer 30

enough energy for hydrogen nuclei to form elements heavier than iron.

Question 31

What is left behind by a supernova?

Answer 31

black hole