Week 4 Coriolis Effect Flashcards
what is the Coriolis effect
Spin motion for a circle
when does the coriolis force appear
appears in a moving object in a rotating frame of reference
what determines the direction of the Coriolis force
direction of the velocity
what are the 5 ways velocity affects the direction or size of the coriolis force
1 if v is parallel to the rotation axis the Fc = 0
2 if v is inward to the axis then Fc is in the direction of rotation
3 if v is outward from the axis then Fc is opposite to the direction of rotation
4 if v is in direction of rotation Fc is outward
5 if v is opposite direction of rotation then Fc is inward
what is the Eotvos effect
Eastward travelling object will be deflected upwards whilst a westward travelling object will be deflected downwards
how does the Eotvos as you get closer to the equator
it becomes more prevalent
what is the Electromagnetic force
the force that the electromagnetic field exerts on electrically charged particles
what are the 4 gauge bosons and their respective force that they exert
Gluons strong nuclear force
Photon electromagnetic force
W&Z bosons weak nuclear force
Gravitons gravitational force
what is the Lorentz force
the combined force on a particle from the electric and magnetic force
what is the Laplace force
when a wire carrying an electrical current is placed in a magnetic field each of the moving charges that comprise the current experience the Lorentz which when combined form a Macroscopic force on the wire
how do cyclotrons work
they accelerate charged particles using a high frequency potential difference in combination with a perpendicular magnetic field that causes particles to spiral in a circle
describe a magnetron
cavity magnetrons consist of a hot filament acting on the cathode which is kept at or pulsed to a high negative potential in the centre of a circular chamber
how does potential difference affect the path of an electron in a particle accelerator
as v increases the electron’s path is curved more until by the electric field until you reach the critical field value which causes a circular path
what is dielectric heating
phenomenon where radio/microwaves electromagnetic radiation heats a dielectric material
what causes dielectric heating
the dielectric material undergoes dipole rotation which causes a change in direction and frequency of the EM field heating the food
