1
2
3
4
5
100
The more massive the star, the __________ the luminosity.
greater
100
What are the terrestrial planets?
M, V, E, M
100
Name the planets in order of distance from the Sun. Closest- Farthest
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
100
What are the jovian planets?
J, S, U, N
100
How are stars classified?
by luminosity and temperature
200
We live in the _____________ galaxy. It is a ___________ shape.
Milky Way, spiral
200
A blue shift of the light from the star indicates that the star is....
moving closer to Earth
200
The apparent change in wavelength of an energy source that is moving is known as the __________________.
Doppler effect
200
If the energy source is moving away from an observer the waves are stretched _____________________ the wavelength.
Increasing or decreasing
increasing
200
Red shift of light from distance galaxies is evidence that ______________________.
the universe is expanding
300
Compared to the other planets in our solar system, Jupiter, Saturn, and Neptune have...
shorter periods of revolution
shorter periods of rotation
greater eccentricities
shorter periods of rotations
300
What is a galaxy?
a group of hundreds of billions of starts held together by gravity
300
Which scale diagram best compares the size of Earth with the size of Venus?
4
300
State one reason why an observer in New York State can never observe the constellation Orion at midnight during July but can observe the constellation Orion at midnight during January.
The Earth revolves around the Sun.
300
Which graph best represents the equatorial diameters of the eight planets of our solar system?
1
400
Terrestrial planets are...
more dense and smaller
more dense and larger
more dense and smaller
400
What is the relationship between average distance from the Sun and the average surface temperature of Jovian planets?
As distance from the Sun increases, the average surface temperature of the Jovian planets decreases.
400
Venus has an atmosphere composed mostly of carbon dioxide. Mercury has almost no atmosphere. Explain how the presence of the carbon dioxide in Venus’ atmosphere causes the average surface temperature on Venus to be higher than the average surface temperature on Mercury.
Carbon dioxide is a GREENHOUSE gas that traps HEAT...
400
Toward Earth
400
How many times larger is the diameter of the Sun than the diameter of Jupiter?
9.7 times larger
500
What best supports the inference that the universe began with an explosion?
a) measurements of cosmic background radiation
b) distance calculations of the Sun to the asteroid belt
c) temperature of the star Polaris
Measurements of cosmic background radiation
500
Compared to the terrestrial planets, Jovian planets have...
larger diameters
higher densities
longer periods of rotation
longer periods of rotation
500
Comparing the temp and luminosity of Polaris, Sirius is...
a) hotter and more luminous
b)cooler an more luminous
c) hotter and less luminous
c) hotter and less luminous
USE ESRT
500
Which sequence of starts is listed in order of decreasing luminosity?
Procyon B, Sun, Sirius, Betelgeuse
Betelegeuse, Siruis, Sun, Procyon B
Betelegeuse, Siruis, Sun, Procyon B
500
Why does Mercury's surface have more meteor impact craters, while Earths has very few?
Earths hydrosphere and atmosphere destroys or buries most sites.