Topic 12 - Formation of Planetary Systems Specification:
• Be able to identify the operation of each of the following in our Solar System:
🡒 gravitational attraction producing regular motion, including the orbits of planets and moons
🡒 tidal gravitational forces producing effects, including ring systems, asteroid belts and internal heating
🡒 gravitational interactions of multiple bodies producing effects such as gradual shifts in orbits, chaotic motion, resonances and the significance of Lagrangian Points (detailed mathematical descriptions not required)
🡒 accidental collisions causing impact craters, changes to orbital motions or planetary orientations
🡒 solar wind affecting comets, planetary atmospheres and the heliosphere
• Be able to identify the operation of each of the following interactions in the formation of planets and moons:
🡒 the interaction between tidal gravitational and elastic forces to determine whether a body is broken apart (Roche Limit)
🡒 the interaction between attractive gravitational and elastic forces in determining a body’s spherical or irregular shape
🡒 the interaction between gravitational and thermal factors in determining the presence of an atmosphere
• Understand the main theories for the formation of gas giant planets in planetary systems
• Understand the current methods for discovering systems of exoplanets, including transit method, astrometry and radial velocity measurements
• Understand the requirements for life and the possibility of lifeforms existing elsewhere, including:
🡒 on Titan
🡒 on Europa
🡒 on Enceladus
🡒 outside our Solar System
• Understand the relevance of the Goldilocks (Habitable) Zones
• Understand how factors in the Drake equation can be used to allow us to estimate the number of civilisations in our Galaxy
• Understand the search for extra-terrestrial intelligence, by receiving radio waves (SETI), including the benefits and dangers of discovering extra-terrestrial life
⭐️ 𝗟𝗶𝗻𝗸𝘀 ⭐️
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