Solar System Characteristics/Gravity
H-R Diagram
Types of Galaxies
Star Life Cycle/Big Bang Theory
500
Based on the image, which planet is affected the least by gravitational pull?
Planet C
500
Based of the picture, which group of stars have a high temperature and a high luminosity?
High Mass stars
500
Based off the characteristics, which type of galaxy is being described?
- no identifiable shape
- composed of mainly young stars
- lots of gas and dust
irregular galaxy
500
True or False:
The universe was once much cooler and more spread out than it is today.
False - it was hotter and denser than it is today.
1000
Fill in the blanks to make the statement true.
The sun is a _______ and is made out of _____.
The sun is a STAR and is made out of GAS.
1000
Fill in the blanks to make the statement correct.
If a star is red, it has a _____ temperature. Which blue stars have a _______ temperature.
Red star = cool temperature
Blue star = hot temperature
1000
Which type of galaxy contains a central bulge of old stars and contains a "halo" on the outer edge of the galaxy.
Spiral galaxy
1000
What is the name of a star that is born from a cloud of gas and dust?
Nebula
1500
What happens to the force of gravity on a satellite if the satellite is orbiting around Earth?
A. causes a decrease in speed
B. causes the satellite pull towards space
C. causes little to no change
D. causes the satellite to change motion
D. causes the satellite to change motion
1500
The sun has a luminosity of _________. 
1
1500
Which galaxy does not contain new stars?
Elliptical
1500
Stars are huge balls of hot gas, mostly made from what 2 elements?
Hydrogen and Helium
2000
What causes Earth to stay on a path around the Sun?
Gravitational attraction
2000
Based of the image, which of these types of stars is the brightest?
A. White dwarf
B. Main sequence star
C. Red Super Giant
D. Orange Giant
C. Red Super Giant
2000
What part of the spiral galaxy is Point A located in?
The spiral arm.
2000
According to the diagram, what terms should go into label 1 and label 2?
1. supernova
2. neutron star
2500
Define the following terms.
1. ________ - body of ice and dust orbiting the Sun
2. ________ - a large body, either of rock or gas, orbiting the Sun
3. ________ - a body orbiting a planet
4. ________ - rocks orbiting the Sun between Mars and Jupiter
1. comet
2. planet
3. moon
4. asteroid
2500
These stars range from low temperature and low luminosity to high temperature and high luminosity. What are they?
Main Sequence stars
2500
Which galaxy has the same shape as the Milky Way?
B
2500
- What is the Big Bang Theory?
- Describe one piece of evidence that scientists use to support the Big Bang Theory?
It’s the idea that the universe started as a super hot, tiny point and has been expanding ever since.
Examples:
- Universe is expanding (galaxies moving away)
- Cosmic Microwave Background
- Abundance of hydrogen and helium
- Large-scale structure of galaxies