Electromagnetic Spectrum
The lowest type of electromagnetic frequency on the electromagnetic spectrum.
What are radio waves?
A cyclical pattern of dark spots on the sun, repeating approximately every 11 years.
What are sunspots?
The fifth planet from the sun.
What is Jupiter?
The force by which a planet or other body draws objects toward its center.
What is gravity or gravitational pull?
The relative age of a crater that has clean, crisp edges and the debris from impact can still be seen.
What is a young crater?
The shortest wavelengths are found in this part of the electromagnetic spectrum.
What are gamma rays?
A giant cloud of dust and gas in space that is how all stars start out as.
What is a nebula?
A chunk of rock and ice orbiting from the outer solar system to near the sun.
What is a comet?
Cause of the tides in the ocean.
What is the Moon's gravity?
The process of hydrogen fusing into helium.
What is nuclear fusion?
The type of relationship found between wavelength and frequency of waves in the electromagnetic spectrum.
What is an inverse relationship?
Graph in which the brightness of stars are plotted against their temperature.
What is the HR diagram?
This is a rocky/metallic object orbiting the Sun between Mars and Jupiter.
What is an asteroid?
This planet moves the slowest around the sun
What is Neptune?
13.8 BILLION years.
How long do scientists think the universe has existed?
The study of visible light and its wavelengths.
What is spectroscopy?
The layer of the sun that we usually see.
What is the photosphere?
A large interstellar cloud of gas contracts under gravity, forming a flattened disk.
What is the start of the formation of a solar system?
The orbital speed of a revolving body in a gravitational field.
What is orbital velocity?
Most low mass stars end their life as this.
What is a white dwarf?
Displacement of the spectrum of an astronomical object toward longer (red) wavelengths when an object is moving away from a fixed position.
What is redshift
More than 90% of all stars in the universe, including our sun, are this type of star.
What is a Main Sequence Star?
The name for the four most inner planets that are composed of compact rocky surfaces.
What are the terrestrial planets?
A planet moves in its ellipse so that the line between it and the Sun placed at a focus sweeps out equal areas in equal times. "Equal Areas in Equal time"
What is Kepler's 2nd Law
On the HR diagram this type of star, has both a low surface temperature and a high luminosity.
What is a SuperGiant star?