Space Flashcards
Life cycle of a normal star
- Nebula
- Protostar
- Main Sequence Star
- Red Giant
- White Dwarf
- Black Dwarf
Life cycle of a massive star
- Nebula
- Protostar
- Main Sequence Star
- Red Super Giant
- Supernova
- Neutron Star
Life cycle of a super massive star
- Nebula
- Protostar
- Main Sequence Star
- Red Supergiant
- Supernova
- Black Hole
What elements are produced during fusion in stars?
Elements up to Iron on the periodic table
Where are elemens higher than Iron formed?
In supernovae
Name of the velocity of an object in orbit at any given time
Instentaenous velocity
Why do object with smaller orbits travel faster?
It requires more force to resist a greater gravitational pull. The gravity is stronger becuase the object is closer to the object it is orbiting.
What is red shift?
The wavelengths blocked by the atmosphere are in the same pattern as they are with normal objects but shifted to the red end of the spectrum when we look at something moving away from the earth. This is because the light gets stretched as it is moving away due to the expansion of space between the Earth and the object.
How is Red Shift evidence for the Big Bang?
It shows objects are still moving away from each other, so the universe is constantly expanding. This implies that at one point all matter was in a very small space and has expanded from there.
Death of the sun
- Star runs out of hydrogen, core collapses and outer layers expand and cool - Red Giant
- Helium fuses to create heavier elements in the core
- Eventually all fusion stops and the star collapses to form a White Dwarf, which is much smaller
- Eventually these stars become black dwarfs