Definitions Flashcards
Annihilation
When a particle and it’s antiparticle meet they destroy each other and form radiation
Amplitude
Maximum displacement of a wave
Antinode
Fixed point on a stationary wave where the amplitude is at maximum
Baryon
A hadron made up of 3 quarks
Kirchhoff’s 1st law (current)
Current in a series is the same through all components.
Current in a parallel current splits across each branch.
Kirchhoff’s 2nd law (PD)
PD in a series splits for each component.
PD in a parallel is the same for each branch.
Coherent wave
Waves of a constant phase difference
Elastic limit
The point beyond which a material is permanently deformed
EMF
The amount of electrical energy per unit charge inside a battery
Excitation
The process is which an electron absorbs energy (without being ionised) and moves to an outer shell
Hooke’s law
The extension of a spring is directly proportional to the force applied up until the elastic limit
Newton’s 1st law (resultant forces)
An object remains at rest or uniform motion unless acted upon by a result and force
Newton’s 2nd law (equation)
Resultant force = mass X acceleration
Node
A fixed point on a stationary wave of zero displacement
Photoelectric effect
Emission of an electron from a metal surface when illuminated with light of a high enough frequency that is above the threshold frequency
