Formation Of Solar System
Which model explains the formation of the solar system as a cloud of gas and dust collapsing under gravity?
Nebular Theory
What characteristic is most common among Jovian planets?
Solid surfaces
Thick atmospheres
Slow rotation speeds
Lack of rings
Thick atmospheres
Why does the Northern Hemisphere experience winter when it is closest to the Sun (Perihelion)?
The tilt away from the Sun is the main factor
Kepler's Third Law relates the orbital period of a planet to:
The distance from the Sun
What role does solar energy plays in photosynthesis?
It generates energy
What triggers the initial collapse of the nebular cloud according to the Nebular Theory?
Gravitational forces within the cloud
What feature is typical of terrestrial planets?
Multiple Rings
Thick layers of gas
Many moons
High density
High density
The tilt of Earth's axis is responsible for:
The seasons
According to Kepler's Third Law, which planet would have the shortest orbital period?
Mercury
By producing sunlight and heat
Which of the following was most responsible for the flattening of the solar nebula into a disk?
Magnetic fields
Gravitational pulls
Solar winds
Spinning motion
Spinning motion
Which of the following is a characteristic of Jovian planets?
Few or no moons
Small size
Low density
Rocky surface
Low density
Spring tides occur when:
The Earth, Moon and Sun are aligned
Kepler's Second Law is also known as the Law of:
Equal Areas
What are the main two elements involved in the Sun's nuclear fusion process?
Hydrogen and helium
Which of the following is NOT a step in the Nebular Theory?
Collapse of a gas cloud
Formation of a rotating disk
Formation of black holes
Accretion of planetesimals
Formation of black holes
Which of the following is NOT a terrestrial planet?
Mars
Earth
Venus
Neptune
Neptune
Earth's distance from the Sun
1 AU
If a planet's orbit has a high eccentricity what does this mean?
The orbit is highly elliptical
What is the primary effect of solar radiation on Earth's climate?
Creates Earth's gravity
Causes volcanic activity
Maintains tectonic plates
Drives the water cycle
Drives the water cycle
Why did the inner and outer planets form differently?
Temperature, location to the Sun, materials available
Which of the following is true about terrestrial planets?
Thick atmospheres
Low densities
Small and rocky
Many moons
Small and rocky
The ________ __________ is the time it takes for a planet to complete one orbit around the Sun.
Orbital period
Kepler's Second Law implies that a planet travels __________ when it is nearer to the Sun.
Faster
The Earth's atmosphere protects life by:
Absorbing harmful radiation