The earth's rotation really makes my day
True or False: In a given amount of time, a planet will cover more area when it is farther from the sun than it will cover when it is close to the sun.
False. A planet will always cover the same area for a given amount of time regardless of where it is in its orbit.
Which of the inner planets has the strongest gravity?
Earth
True or False All of the outer planets have rings.(if it's false need to say which ones don't)
True
What are long channels in the moon's surface?
Rilles
The moon after the full moon and before the new moon, when its appearance is shrinking.
Waning moon
False, Venus and Uranus spin in the opposite direction (retrograde) from the other planets.
What is Kepler's 2nd Law?
Planets move faster when they are closer to the sun, than when they are farther from the sun
Why is there an equatorial bulge to Jupiter and Saturn?
What are three effects of the moon's thin atmosphere?
No weather; no wind; great daily temperature variations; and no gaseous oxygen or liquid water that could sustain life.
Why does the same side of the moon always face the Earth?
The period of the moon's rotation is the same as its period of revolution around the Earth.
Semimajor axis and period of revolution
Which of the inner planets has water only in ice or vapor form?
Mars
Which two elements are present in great quantities in all the gas giants?
Hydrogen and Helium
What created the moon's craters?
Meteorite impacts
How often does a new moon phase occur?
Once a month
What does gravity have to do with planetary orbits?
It keeps the planets from traveling indefinitely into space.
Why has liquid water been found on Mars even though its surface temperature rises high enough for its ice to melt?
The atmospheric pressure on Mars is so low that water boils away almost as soon as it melts. (The ice skips the liquid phase and goes from solid ice to water vapor)
Explain whether you think Pluto should be classified as a planet or a dwarf planet. Need to use evidence to support your answer.
varies
The point in the moon's orbit at which it is closest to the Earth
Perigee
The point in the moon's orbit at which it is farthest from the Earth
Apogee
Draw a planet's orbit around the sun and label the following features: planet, sun, major axis, minor axis, aphelion, perihelion, focus
board
How do periods of rotation on Venus and Mercury affect their ability to sustain life?
The extensive periods of dark or light caused by their periods of rotation prohibit plant growth.
According to Kepler's third law of planetary motion, what two features of a planet's orbit are related?
semimajor axis and period of revolution
remember P(2)=a(3)
P= period of revolution
a= how many astronomical units long is the semimajor axis
The different shapes of the moon made visible by reflected sunlight
Phases
The moon after the new moon and before the full moon, when its appearance is growing
Waxing moon