Astronomy

Question 1

The Sun…

Answer 1

• Gives off energy in the form of electromagnetic waves
• Luminous
• Typical Star

Question 2

How does the sun produce energy?

Answer 2

By the nuclear fusion of 2 hydrogen atoms to helium

Question 3

How long does it take the sun to rotate?

Answer 3

27 days

Question 4

What is the sun made out of?

Answer 4

Plasma, a really hot gas

Question 5

Sunspots occurence

Answer 5

Sunspots occur in a cyclic manner every 10-11 years reach a minima or maxima

Question 6

Name the planets.

Answer 6

Mars
Mercury
Earth
Venus
Jupiter
Saturn
Neptune
Uranus

Question 7

Inner Planets (rocky)

Answer 7

Earth
Mars
Mercury
Venus

Question 8

Outer Planets (gas giants)

Answer 8

Jupiter
Saturn
Neptune
Uranus

Question 9

Our home galaxy is the…?

Answer 9

Milky way

Question 10

After Neptune is…?

Answer 10

The Kuiper Belt and the Oort cloud

Question 11

Light Years

Answer 11

The distance light travels in one year

Question 12

The Big Bang Theory

Answer 12

• Proposed by George LeMaitre (a roman catholic priest)
• Says the universe began from a primordial hot and dense space which exploded material out into space
• It is expanding outward today

Question 13

Is the universe still expanding today?

Answer 13

Yes

Question 14

Edwin Hubble

Answer 14

Provided evidence for expansion

Question 15

Doppler Effect

Answer 15

The apparent change in the wavelength of radiation or sound in which there is a relative motion between the source and the receiver

Question 16

If the light is moving toward you…

Answer 16

Blueshift

Question 17

If he light is moving away from you…

Answer 17

Redshift