Kepler's 3 Laws of Planetary Motion
Who was Kepler?
German astronomer, mathematician, astrologer, natural philosopher, and music writer.
Galactic collisions are common
A) True
B) False
A) True
How is the universe split up?
A) 50% dark energy, 25% dark matter, 25% normal matter
B) 65% dark energy, 20% dark matter, 15% normal matter
C) 80% dark energy, 15% dark matter, 5% normal matter
D) 68% dark energy, 27% dark matter, 5% normal matter
D) 68% dark energy, 27% dark matter, 5% normal matter
What kind of star is our Sun?
A) Yellow dwarf star
B) Red Giant
C) Red dwarf star
A) Yellow dwarf star
What's the law?
Every particle attracts every other particle in the universe with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Kepler's Laws???
1) Planets move in elliptical orbits with the Sun as a focus.
2)A planet covers the same area of space in the same amount of time no matter where it is in its orbit.
3) A planet’s orbital period is proportional to the size of its orbit (its semi-major axis).
What does the Hertzsprung-Russell diagram represent?
A) Black Holes
B) Stars age
C) The relationship between a star's brightness and temperature
C) The relationship between a star's brightness and temperature
What is the difference between dark matter and baryonic matter
A) One is a mystery and one we encounter in our daily lives
B) One is baryonic and one is not
C) There is no difference
A) One is a mystery and one we encounter in our daily lives
The Sun is in the main sequence
A) True
B) False
A) True
What are 2 factors that affect the force of gravity?
The size of the object and the distance between the objects.
True or False - Does Kepler's laws only apply to planets?
FALSE
His laws can be applied to objects like planets, stars, or comets, as well as man-made devices like rockets and satellites in orbit.
What does dark energy do?
A) Scientists don't know yet
B) Accelerate the expansion of the universe
C) Slows down the expansion of the universe
B) Accelerate the expansion of the universe
Why is the Sun at the center of the solar system?
A) A nebula collapsed
B) Scientists don't know yet
A) A nebula collapsed
What's the formula?
F = G m1m2/r2
F = Force
G = Gravitational Force
m1 = Mass of Object 1
m2 = Mass of Object 2
r = Distance Between Centers of the Masses