Planets, Planets, Planets
What is a NEO? Can you give a recent example of a NEO that was mentioned on the news?
A NEO is a near earth object. NEOs include, comets and asteroids close to earth; answers will, vary
What are the two classifications of planets?
terrestrial and Jovian
Which two planets rotate backward, or clockwise?
Venus & Uranus
Which planet has the largest known volcanoes in the solar system?
Mars
Who was the first person to see craters on the moon?
Galileo
How long is the revolution of the sun? How long is the revolution of the moon?
A year; one month
Which has the faster orbit cycle, the moon or the sun?
The moon
How does the moon produce light?
It doesn’t. It reflects light it gets from the sun
Which type of planet is closer to the sun?
terrestrial
List the planets of the inner solar system.
Mercury, Venus, Earth, Mars
Is rotation or revolution the circular motion around an axis that passes through the center of a body, such as a planet or moon?
Rotation
What are the two basic types of telescopes?
Refractors and reflectors
Name a planet that appears as bright as stars in the sky.
Mars, Venus, Saturn, Jupiter
List the planets of the outer solar system.
Jupiter, Saturn, Uranus, Neptune
Define satellites
orbit a planet, moon
What type of planet has a lot of satellites and rings and are larger, with less density?
Jovian
How does gravity from both the moon and the earth impact one another?
The earth’s gravity pulls on the moon, causing, the moon to orbit the earth. But the moon’s, gravity also pulls on the earth and even alters its, shape a little. The moon’s gravity also impacts the, ocean tides.
Define comet
small bodies in space that contain frozen dust
How does the presence of CO2 in the atmosphere of Venus keep the planet hot?
It traps the infrared radiation rather than letting, it radiate away.
Define astronomical unit. Symbol?
a unit of distance, AU
Define astronomy
the study of heavenly bodies
What are three ways that comets are lost?
Wearing out, collision with a planet, or being, ejected from the solar system
What three discoveries by Galileo proved the geocentric theory was incorrect?
The phases of Venus, craters on the moon, and, four moons orbiting Jupiter
Define minor planets
called asteroids, smaller than planets
How does the appearance of rings around Jovian planets point to a young universe?
The gravitational pull of moons, like those of, Saturn, tear rings apart