The Universe Test Review

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The Universe Test Review

• Week 18

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What is rotation?
Rotation Rotation Earth spins around its axis 1 rotation takes 24-hours
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What does rotation cause/create?
Rotation This causes day and night because the east and west hemispheres alternate facing the sun
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Draw a picture of rotation and label Day and
Night?
Rotation
Night
Day
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What is Revolution?
Revolution Revolution Earth going around the sun every 365 days
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What causes seasons?
Revolution Revolution and the tilt of the Earth on its axis
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What causes seasons?
Revolution Revolution and the tilt of the Earth on its axis
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Label the Seasons
Spring
Summer
Winter
Fall
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Draw a picture of the Earth, Moon, and Sun
showing the Earth orbiting the Sun and the Moon
orbiting the Earth.
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Waxing Crescent
Waning Crescent
3rd Quarter
First Quarter
Full Moon
Waning Gibbous
Waxing Gibbous
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Draw a diagram of Spring Tide with appropriate
moon phases
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Draw a diagram of Neap Tide with appropriate moon
phases
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What is the difference between Spring and Neap
Tide

• Spring Tide highest high tides and lowest low
  tides
• greatest difference between high and low tide
• Neap Tide Lowest high tide and highest low tide
• smallest difference between high and low tide

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Explain high and low tide.

• High Tide Where the water levels rises twice a
  day
• Low Tide Where the water level falls twice a day

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Put the following in order from largest to
smallest

• Universe
• Galaxy
• Solar System
• Sun
• Earth
• Moon

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Galaxies
Elliptical Spiral
Lenticular Irregular
Little gas and dust between the stars
This is the type of galaxy we live in
Galaxy with a central bulge or bar in the middle
These galaxies do not have a regular shape
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Place a star where our sun is located
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What is the size of our sun?

• Medium (G or F)

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Where is our sun found in the Milky Way Galaxy?

• On the edge of a spiraled arm.

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HR Diagram Question

• Which star is the hottest star?
• Which color, red or blue, is hotter?
• Which star is brighter, Sirius B or Deneb?
• Which star is cooler, Barnards Star or the Sun?
• Which star is less bright, Alcor or Zeta Eridani?
  

Zeta Eridani
Blue
Deneb
Barnards star
Alcor
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How do astronomers determine the elements a star
of made of?

• By using the electromagnetic spectrum to see what
  elements are in the stars light by looking at the
  spectral lines
• Video http//www.youtube.com/watch?v5GIvktBSxvw

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Label the EMS

• Short wavelengths
• Highest frequency

• Long Wavelengths
• Lowest Frequency

Gamma
Visible Light
Radio
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How do astronomers measure distance in the
universe?

• By using light years

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What is a light year?
Light year the distance light travels in one year 300,000 kilometers per second
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What is the Big Bang Theory and what evidence
supports it?
Big Bang Theory Evidence
Most popular theory Says that at first matter was in one small area, and than it got so hot it exploded This theory suggests that everything is still expanding and growing Red Shift everything is moving away from earth meaning the universe is still Expanding Cosmic Microwave background Radiation left from the Big Bang
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Please add to your review!

• Life Cycle of a star
• Video http//www.youtube.com/watch?vPM9CQDlQI0A

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What is the life cycle of a small/medium size
star?
White Dwarf
Red Giant
Black Dwarf
Small/Medium Size Star
Nebulae/ Protostar/ Main Sequence
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4. What is the life cycle of a large star?
Nebulae/ Protostar/ Main Sequence
Large Size Star
Recycled Star
Black Hole
Super Giant
Neutron Star
Supernova