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WorksheetsNebular Theory
Total questions: 25
Worksheet time: 25mins
The theory that explains the formation of the solar system is called ____.
Nebulis Theory
Nebular Theory
Big Bang Theory
Big Nebulan Theory
What force acted on the massive nebula to collapse it and eventually form our sun?
electrostatic force
strong force
weak force
gravity
What is the nebular hypothesis?
Prediction about how the universe was formed
Prediction of how the moon was formed
Prediction of how comets were formed
Prediction of how the Solar System was formed
What caused the nebula to collapse and start spinning?
Supernova
Asteroid collision
Big Bang
Nearby star exploded
the planets of the solar system formed as
the center of the gas cloud cooled
planetesimals flattened into a rotating disk
planetesimals collided into one another
the sun absorbed extra gas and dust from the solar system
How long ago was our sun formed?
10 million years ago
5 million years ago
4.5 billion years ago
2 billion years ago
The nebula begins to spin and flatten. Then what?
The center of the nebula begins to get hot and dense.
Gravity causes light gases to move to the center while heavier materials and ice stay in outer areas.
A protostar forms in the center of the nebula.
Gravity causes light gases to move to the center while heavier materials and ice stay in outer areas. Then what?
The center of the nebula begins to get hot and dense.
A protostar forms in the center of the nebula.
The nebula begins to spin and flatten.
The center of the nebula begins to get hot and dense. Then what?
The nebula begins to spin and flatten.
The SUN is born, fusion begins in the core.
A protostar forms in the center of the nebula.
About 4.6 billion years ago, a cloud of stellar dust or nebula exists within the Milky Way. What happened next?
Shock waves hit the nebula causing it to collapse.
The energy enriched nebula begins to contract further due to gravity.
Supernova of a nearby star occurs.
Shock waves hit the nebula causing it to collapse. Then what?
Supernova of a nearby star occurs.
The energy enriched nebula begins to contract further due to gravity.
The nebula begins to spin and flatten.
A protostar forms in the center of the nebula. Then what?
Shock waves hit the nebula causing it to collapse.
The center of the nebula begins to get hot and dense.
The SUN is born, fusion begins in the core.
The SUN is born, fusion begins in the core. Then what?
Planetesimals (small rock or icy bodies) begin to form. Rocky pieces in the outer rings and icy pieces in the inner rings.
A protostar forms in the center of the nebula.
About 4.5 billion years ago pieces of rock and ice accumulate more material until they grow into planets and moons.
Planetesimals (small rock or icy bodies) begin to form. Rocky pieces in the outer rings and icy pieces in the inner rings. Then what?
About 4.6 billion years ago, a cloud of stellar dust or nebula exists within the Milky Way.
About 4.5 billion years ago pieces of rock and ice accumulate more material until they grow into planets and moons.
The SUN is born, fusion begins in the core.
What is the FIRST event in the formation of the solar system?
About 4.5 billion years ago pieces of rock and ice accumulate more material until they grow into planets and moons.
About 4.6 billion years ago, a cloud of stellar dust or nebula exists within the Milky Way.
None of the above.
How do stars form?
Through the sun
When a nebula collapses and nuclear fusion occurs
Through a supernova
Magic
How long ago did the solar system begin to form?
5 billion years ago
50 million years ago
5 million years ago
50 billion years ago
an enormous cloud of dust and gas occupying the space between stars and acting as a nursery for new stars
nebula
main sequence star
mass
luminosity
As a nebula collapses it also begins:
Expand
Rotate
Shake
Turn to ice
The planetesimals keep:
Colliding and breaking apart
Colliding and sticking together
Colliding and bouncing around
Breaking down into smaller pieces
What is the Nebular Theory?
A theory explaining the formation of the universe
A theory explaining the formation of the solar system
A theory explaining the formation of galaxies
A theory explaining the formation of stars
According to the Nebular Theory, what initiates the collapse of a nebula?
Electromagnetic forces
Nuclear fusion
Gravitational forces
Chemical reactions
What is the primary component of the nebula in the Nebular Theory?
Carbon dioxide
Hydrogen and helium gases
Silicon and iron
Methane and ammonia
In the context of the Nebular Theory, what forms at the center of the collapsing nebula?
A black hole
A protostar
A planet
A comet
How do planetesimals form according to the Nebular Theory?
By the cooling of the nebula
By the collision and sticking together of dust and ice particles
By the explosion of a star
By the evaporation of gases
