topic 12 part 1
- Created by: StudyBuddy : )
- Created on: 12-11-22 18:44
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- Topic 12
- Effects of gravity
- Keeps smaller bodies in orbit
- Moon orbits Earth
- Earth orbits sun
- Smaller body must be travelling at a certain speed
- In any particular orbital radius
- Centripal Force
- Required for circular motion
- Force towards circular motion
- Moon orbits Earth
- The amount of gravity an object has determines it's shape
- It will pull itself into a sphere if the gravity is strong enough
- More mass more liekly to form into a sphere
- What it's made of also effects this
- It will pull itself into a sphere if the gravity is strong enough
- Keeps smaller bodies in orbit
- Tidal Gravitational forces
- As you move away from a planet the grvaity gets weaker
- Grvaity followes an inverse square law
- If it 2 times away the strength of gravity is 4 times weaker
- The part of a planet which is closer experiences the stronger gravity
- Whereas the area that is further away experiences weaker gravity
- If the difference is big enough, it will have a stretching effect on the object
- Whereas the area that is further away experiences weaker gravity
- This puts presures onto the smaller object/body
- may start to osilate
- Heating
- may break into pieaces
- If the difference is big enough, it will have a stretching effect on the object
- This puts presures onto the smaller object/body
- may start to osilate
- Heating
- may break into pieaces
- This puts presures onto the smaller object/body
- The Roche Limit
- This process is believed to be the origin of ring systems
- If the smaller body is just being held togethe by its own gravity
- The roche limit is the minimun distance the smaller body can survive
- If it gets within the roche limit it will be torn to pieces
- Due to the difference in gravitational forces
- If it gets within the roche limit it will be torn to pieces
- The roche limit is the minimun distance the smaller body can survive
- The asteroid belt
- When the other planets were forming the gravity of Jupiter disturbed this proccess
- So the plantets couldn't settel into shape
- The pieces had lots of energy
- Any early planets were shattered into pieces
- In violent collisions
- Any early planets were shattered into pieces
- When the other planets were forming the gravity of Jupiter disturbed this proccess
- Effects of gravity
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