Copy and Edit

The Life Cycle of a star

Description

Life cycle of a star, GCSE Physics 2B
Claire Dugdale
Mind Map by Claire Dugdale, updated more than 1 year ago More Less
a a
Created by a a over 10 years ago
Claire Dugdale
Copied by Claire Dugdale almost 3 years ago
3
0
0

Resource summary

The Life Cycle of a star
  1. Protostar
    1. Main sequence star
      1. Red SUPER giant
        1. Supernova
          1. Neutron Star
            1. EXPLODING supernova THROWS OUTER LAYERS OF DUST + GAS into space
              1. VERY DENSE CORE IS LEFT
            2. Black Hole
              1. If the star is big enough, IT WILL THEN BECOME A BLACK HOLE
              2. The above EXPLODES to form a supernova
                1. Elements HEAVIER THAN IRON are made
                  1. They are ejected into the universe to form new stars/ planets
                2. Stars BIGGER than our sun
                  1. It's red because THE SURFACE COOLS
                    1. UNDERGOES MORE FUSION, STAR EXPANDS AND CONTRACTS MANY TIMES
                      1. STARTS TO GLOW BRIGHTLY AGAIN
                      2. Elements AS HEAVY as iron are formed
                      3. Red giant
                        1. The fuel for the main sequence star (HYDROGEN) RUNS OUT
                          1. Elements SUCH AS IRON are made by NUCLEAR FUSION OF HELIUM
                          2. Planetary Nebula
                            1. White Dwarf
                              1. The left over is a dense, solid core
                                1. Black Dwarf
                                  1. The WHITE DWARF COOLS
                                    1. This will eventually DISAPPEAR
                                  2. Red giant BECOMES UNSTABLE and EJECTS OUTER LAYER
                                2. GRAVITATIONAL ENERGY BECOMES HEAT ENERGY
                                  1. THIS CAUSES TEMPERATURE RISE
                                  2. HYDROGEN undergo NUCLEAR FUSION to form HELIUM
                                    1. They give out HEAT and LIGHT
                                    2. The star enters stable period, GRAVITATIONAL FORCES = OUTWARD PRESSURE
                                      1. THE STAR CAN STAY LIKE THIS FOR BILLIONS OF YEARS
                                      2. Starts as clouds of dust and gas
                                        1. FORCE OF GRAVITY makes the gas and dust spiral together
                                        Show full summary Hide full summary

                                        Want to create your own Mind Maps for free with GoConqr? Learn more.

                                        Similar

                                        GCSE AQA Physics - Unit 3
                                        James Jolliffe
                                        GCSE AQA Physics 1 Energy & Efficiency
                                        Lilac Potato
                                        AQA Physics P1 Quiz
                                        Bella Statham
                                        P2 Radioactivity and Stars
                                        dfreeman
                                        Using GoConqr to study science
                                        Sarah Egan
                                        Junior Cert Physics formulas
                                        Sarah Egan
                                        Physics 1A - Energy
                                        Zaki Rizvi
                                        Physics: Energy resources and energy transfer
                                        katgads
                                        P2a revision (part 1)
                                        juliasutton
                                        P2a (part 2)
                                        juliasutton
                                        Units of measurement - physics
                                        Sarah Egan
                                        Browse Library