Physics Definitions Unit 3 & 4

a particle whose substructure is unknown

the acceleration experienced by any object moving in a circular path directed towards the centre of motion

a law stating that when the magnetic flux linking a circuit changes, EMF is induced in the circuit

the strength of a magnetic field or the number of magnetic field lines per unit area

the capacity of electric charge carriers to do work due to their position in an electric circuit

force acting on an object travelling in a circle that either pulls or pushes the object in towards the centre of motion

radiant energy consisting of synchronised oscillations of electric and magnetic fields at the speed of light in a vacuum

states that the direction of an induced electric current opposes the change in the magnetic field that produces it

the momentum of an object when measured in the frame of reference in which the object is in motion

the law that states that all planets move about the Sun in elliptical orbits, having the Sun as one of the foci

a difference in potential that tends to give rise to an electric current, also written as EMF

the abstract coordinate system that defines location of the observer

the length measured in the frame of reference in which the object is in motion

composite subatomic particles made up of three quarks

the mass of an object when measured in the same reference frame as the observer

the force acting along an imaginary line drawn perpendicular to the surface

any frame of reference with respect to which the acceleration of the object of observation remains zero

the production of EMF or voltage across an electrical conductor due to its dynamic interaction with a magnetic fiel

a measurement of the total magnetic field that passes through a given area

The law describing the relationship between masses and distance of a pair of point particles.

the minimum energy required to remove an electron from a solid

an observer at rest relative to a moving object would observe it to be shorter along the dimension of motion

the difference of elapsed time between two events as measured by observers moving relative to each other

the minimum frequency of a photon that can eject an electron from a surface

a law stating that like electric charges repel and opposite electric charges attract

the intensity of an electric field at a particular location

a region of space near a magnet, electric current or moving electrically charged particle in which a magnetic force acts

Electron, Electron neutrino, Muon, Muon neutrino, Tau, Tau neutrino are:

states that the squares of sidereal periods of planets are directly proportional to the cubes of mean distance from sun

the time interval measured in the frame of reference in which the object is at rest

regions around a electrically charged particle in which a force would be exerted on other electrically charged particles

the time interval measured in the frame of reference in which the object is in motion

Up, Down, Top, Bottom, Charm and Strange are the:

the length measured in the frame of reference in which the object is at rest

the relation between two events assumed to happen at the same time in a frame of reference

Photon, W, Z, Gluon are:

subatomic particles composed of one quark and one antiquark

a fundamental constant used in quantum mechanics (symbol, ℎ; SI unit, Js)

the law that states that a radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time

the region of space surrounding a body in which another body experiences a force of gravitational attraction