Physics Flashcards unit 1

Explain pair production

What roles do exchange particles play in interactions

Electron Volt

Ohmic conductor

Principle property of superconductor

Definition of an excited atom

Difference between a Hadron and Lepton

What happens to positron produced by pair production

What is meant by Root mean square voltage

Why does current of a lamp decrease after initial increase

What happens to excess energy of photon in pair production

Why are different energies of photons possible when electron de-excites

Range of Strong Nuclear Force

Define a Hadron

Define emf

When is max power delivered to load

Work Function

Internal Resistance of battery

Electron Capture

Explain why kinetic energy of emitted electron has a max value

Explain why below a certain value electrons are not emitted

Why is the fact that there is no time delay is important

Explain the threshold frequency

Explain why an electron moves from ground state to n=2 in excitation

Why are electrons release from the metal surface

Why is it important to test by experiment a scientific theory

Internal resistance of a battery

What is the terminal voltage

Explain why emitted electrons have a range of KE

Ground state

Excitation vs. Ionisation

Why do photons of certain frequencies cause excitation in particular atom

Explain what must happen in order for a new scientific theory to replace old one

Measuring voltage using osciliscope