Kepler's Laws
Where do planets have the highest speed?
When nearest to the Sun.
What is the Big Bang Theory?
A theory that says universe originated billions of years ago in a rapid expansion from a single point.
Why do astronomers use scientific notation?
They use it to easily convert unusually large or small numbers.
The sun is made mostly made of . . .
Hydrogen and Helium
What is orbit?
The curved path of a celestial object
A long skinny ellipse has what type of eccentricity?
A high eccentricity.
Approximately when did the the big bang happen?
13.8 billion years ago.
What does the number 5 represent in the mathematical notation 3 x 10⁵?
An exponent
What is a nebula?
A nebula is an interstellar cloud mixed with hydrogen, helium and other gases.
What is a Ellipses?
A shape ranging from a circle to a oval.
What is Kepler's first law
Each planet's orbit around the Sun is an ellipse
What elements formed after the big bang?
Hydrogen & Helium
What is Scientific Notation?
Scientific notation is a way of expressing numbers that are too large or too small to be easily written in decimal form.
About when did our solar system form?
About 5 billion years ago
True or false: Every planet has the same shape of rotation
False
What is eccentricity?
The measure of how elliptical an orbit is
What is the difference between red and blueshift?
Blueshift light tends to be emitted from objects that are moving closer, while redshift light emitts from object moving farther.
Convert 2.4327 × 10⁴ to Standard Notation
24,327
Yellow Dwarf Star
When a planet is closest from the Sun it's called. . .
Perihelion
Who is Johannes Kepler?
A German Astronomer/Mathematician who used his love of math to formulate 3 laws of planetary motion.
What fruit was the size of the universe before the big bang?
A peach
Convert 0.066 to Scientific Notation
6.6 × 10⁻²
How did the Solar System form?
A nebula cloud collapsed, due to a shockwave of a nearby exploding star. When this dust cloud collapsed, a force called gravity pulled parts of the cloud together into clumps that later formed the Sun. The Sun's gravity then pulled the planets into it's orbit.
Who figured out that planets orbit the Sun along elliptical paths?
Johannes Kepler