Copernicus was a scientist who proposed this model of the solar system where the sun is at it's center.
What is the Heliocentric model?
This is the motion of a celestial body along a path around the sun.
What is Revolution or Orbit?
This is the turning, or spinning, of a body (such as a planet) on its axis.
What is Rotation?
What is the equation for an Ellipse?
Eccentricity = Distance between Foci / Length of Major Axis
What's the first thing you should do whenever you receive a test?
Read the Directions!
In this solar system model the Earth was proposed as the center of the solar system.
What is Geocentric Model?
This celestial body orbits the Earth.
What is the moon?
This is a word that means the same as rotation.
What is spinning (on an axis)?
This is the planet that is next in line after Earth.
What is Mars?
The force of gravity between two objects will be greatest if (two factors)...
large and they are close together
This is always one foci point for all the planets in our solar system.
What is the Sun?
This is an oval-shaped path that the planets travel in their orbit around the sun.
What is ellipse?
Earth's rate of rotation is how many degrees per hour?
15 degrees/hour
This planet is closest to the sun.
What is Mercury?
What are the two pieces of evidence that prove the Big Bang theory?
Red Shift and Cosmic Background Radiation
The age of the Solar System.
What is 4.6 Billion years old?
Earth's rate of revolution is approximately hour degrees per day?
1 degree per day
This is an instrument used by daylight casting a shadow with a pointer moving across a disc, with the tip of the shadow pointing to the time of day.
What is a Sundial?
Which of the following planets is a terrestrial planet?
Jupiter
Uranus
Mars
Pluto
Mars
This is the eccentricity of a straight line.
What is 1?
How many hours of sunlight does the Northern Hemisphere receive on March 21st?
12 hours
This is the name for the event on June 21st in the Northern Hemisphere.
What is the summer solstice?
What are three pieces of evidence that proves that the earth is rotating on an axis?
Sunrise and sunset
Foucault pendulum
Coriolis effect
This planet's day (period of rotation) is longer than its year (period of revolution).
What is Venus?
The formation of the planet Uranus is estimate to
have occurred approximately how many year ago
4.6 billion years ago
What is the angle of insolation on June 21st at the Tropic of Cancer?
90 degrees
In the southern hemisphere, a winter solstice would occur on this date.
What is June 21st?
What compass direction does the sun set during the winter in the Northern Hemisphere?
Rises in the South East, sets in the South West.
Terrestrial planets move more rapidly than Jovian planets because...
Terrestrial are closer to the sun.
How many hours of daylight are received at the Arctic Circle when Earth is at position A?
12 hours