Black
Holes
Black Holes
The intense
gravitational field left
when a giant star
collapses
It is called a black
hole because not
even light can
escape
Photon Sphere

The outer edge
where light bends but
is still escapable
Event Horizon
The point at which no
light can escape
Singularity
The shrunken star
too small to be
measured but with
indefinite density
Galaxies
Galaxy
A large assembly of
stars and nebulae
Group of Galaxies
The Milky Way
Our galaxy
Flat disk with spiral
arms
Three Types of
Galaxies
Elliptical
Oval shaped
Most common type
of galaxy found
Contains little gas
and dust
Most are dim and
difficult to see
Spiral
Dense center with
spiral arms
Bright and easy to
see
Contains large
amounts of gas and
dust – always
producing new stars
Irregular
No specific shape
Contains large
amounts of gas and
dust
Small and faint
therefore hard to see
Quasars
Quasars

Small, powerful
source of energy
thought to be cores
of distant spiral
galaxies
They emit radio
waves and bright
light
This powerpoint was kindly donated to
www.worldofteaching.com

http://www.worldofteaching.com is home to over a
thousand p...
Black holes
Black holes
Black holes
Black holes
Black holes
Black holes
Black holes
Black holes
Black holes
Black holes
Black holes
Black holes
Upcoming SlideShare
Loading in …5
×

Black holes

245 views
162 views

Published on

Published in: Technology, Education
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
245
On SlideShare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
7
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Black holes

  1. 1. Black Holes
  2. 2. Black Holes The intense gravitational field left when a giant star collapses
  3. 3. It is called a black hole because not even light can escape
  4. 4. Photon Sphere The outer edge where light bends but is still escapable
  5. 5. Event Horizon The point at which no light can escape
  6. 6. Singularity The shrunken star too small to be measured but with indefinite density
  7. 7. Galaxies
  8. 8. Galaxy A large assembly of stars and nebulae
  9. 9. Group of Galaxies
  10. 10. The Milky Way Our galaxy Flat disk with spiral arms
  11. 11. Three Types of Galaxies
  12. 12. Elliptical Oval shaped Most common type of galaxy found
  13. 13. Contains little gas and dust Most are dim and difficult to see
  14. 14. Spiral Dense center with spiral arms Bright and easy to see
  15. 15. Contains large amounts of gas and dust – always producing new stars
  16. 16. Irregular No specific shape Contains large amounts of gas and dust
  17. 17. Small and faint therefore hard to see
  18. 18. Quasars
  19. 19. Quasars Small, powerful source of energy thought to be cores of distant spiral galaxies
  20. 20. They emit radio waves and bright light
  21. 21. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

×