1) The practice field rules include clean hands, one person at a time, and three throws per person. 2) The document discusses practice field rules for an activity involving throwing. 3) It lists three rules for using the practice field: clean hands, one person at a time, and a limit of three throws per person.

1. Practice
Practice
Practice field Rules
1) Clean Hands
2) One person at a time
3) Three throws per person

2. 100 The Universe and Galaxies
100 Electromagnetic waves
100 Optical fun
100 Stars
100 Distances and Measurement

3. Final Question
200 300 400 500
100
200 300 400 500
100
100 200 300 400 500
100
200 300 400 500
100
Black Hole
200 300 400 500

4. What is the Electromagnetic spectrum
Light Radiation organized by
frequency and wavelength
100 Mystery Ball

5. What are the wavelengths of the Electromagnetic Spectrum
Radio, Microwave,Infrared,
Visible,Ultraviolet,X-ray,
200 Gamma Ray
Mystery Ball

6. The Waves at the Radio end of the spectrum are like?
The waves at the Gamma end of the spectrum are like?
Radio waves are very big
and far apart (building size)
300 Gamma waves are very
small and close together Mystery Ball
(Atomic size)

7. What
wavelength do we see in?
What wavelength do we emit?
Visible &
400 Infrared Mystery Ball

8. We in's Law states what?
Describes the
relationship between the
wavelength of maximum
500 intensity and the
temperature. (Hot - Mystery Ball
Blue) (Cold - Red)

9. What are the three basic types of Galaxies?
Spiral,Elliptical, irregular
100 Mystery Ball

10. What type of Galaxy do we live in and what is it called?
Barred spiral and the
200 Milky way Mystery Ball

11. What are the common wavelengths to view a galaxy?
Infrared,
visible,
300 x-ray, Mystery Ball
radio

12. What is one major difference between a spiral and an Elliptical
galaxy?
Elliptical galaxies
400 have almost no dust Mystery Ball
or gas between the
stars

13. According to Hubble's law Galaxies move how in relation to
us?
The farther away the
500 galaxy is the faster it will
move away from you. Mystery Ball

14. What are the ways to classify stars?
Color, Temperatur
e, Size, Chemical,
100 Composition, and
Mystery Ball
Brightness

15. In accordance to Wein's law the hotter younger stars are
______in color.
200 Blue Mystery Ball

16. White dwarf stars can be as small as _____ and Neutron stars
can be as small as _______
300 Earth, 20km
Mystery Ball

17. _______ is the brightness as seen by the Eye.
______ is the brightness after adjusting for the distance of the
star
Apparent
400 Absolute Mystery Ball

18. The Hertzsprun-Russell diagram uses the graphing of these
two qualities to see the pattern of star types.
Surface
temperature
500 and
Absolute Mystery Ball
brightness

19. We use this to analyze visible wavelenths
100 Spectroscope
Mystery Ball

20. What are the two type of optical telescopes?
Refracting
and
200 Reflecting Mystery Ball

21. What interferes with telescopes and what
do we do to avoid the problems?
Atmosphere - place
telescope on high
mountains, or in
space
Light pollution - place
300 far away from
civilization or in space Mystery Ball
Wavelength
interference - in a
valley

22. C olor filters can do this to objects
Make brighten objects
of the same color
400 range and darken Mystery Ball
objects of opposite
color range

23. Spectroscopy can be used to see what in different stars?
Different elements
500 that are in that star. Mystery Ball

24. A light-year is?
The distance
that light travels
in one year,
100 about 9.46 Mystery Ball
trillion km

25. Scientists us this notation because the distances between
objects in space are so large
Scientific
200 Notation Mystery Ball

26. he light from the stars is like looking into the
T
past why?
Because the
stars are so far
away the light
we see left that
star system
300 millions of Mystery Ball
years ago.

27. Solve the following equation!
3x + 2 =38
400 12 Mystery Ball

28. Inscientific notation a positive exponent means the object is
______ and a negative exponent means an object is _______.
Big/far
away
500 Small/very Mystery Ball
close

29. According to the Big Bang theory this is how
the universe began.
The theory asserts that our
entire universe was created
when a tiny (billions of
times smaller than a
proton), super-dense,
Final super-hot mass "exploded"
and began expanding very
Question rapidly, eventually cooling Mystery Ball
and forming into the stars
and galaxies with which we
are familiar.