Flashcards
Matter and Radiation
Cards in this deck (20)
- 1Define an isotopeAn isotope is a variation of an atom that has the same number of protons and a different number of neutrons.
- 2What is specific charge?The specific charge of a particle is its charge divided by its mass.
- 3What is the strong nuclear force?The strong nuclear force is the force that overcomes the electrostatic force of repulsion and keeps the protons and neutrons together.
- 4Define alpha radiation.Alpha radiation is made up of two protons and two neutrons (helium nucleus).
- 5Define beta radiation.Beta radiation consists of of fast moving electrons.
- 6Define gamma radiation.Gamma radiation is electromagnetic radiation emitted when a nucleus has too much energy.
- 7What happens when an atom emits an alpha particle.The atom's nucleon number will decrease by 4 and its atomic number will decrease by 2.
- 8What happens when an atom emits a beta minus particle.The beta particle is immediately emitted after creation alongside the immediate emission of an antineutrino. The atomic number will increase by one due to the gain of a proton.
- 9What is the value of Planck's constant?6.63 x 10^-34 Js
- 10What is the equation to find the photon energy?E= hf
(Photon energy = Planck's constant x frequency) - 11What is the equation for the power of the beam?power of the beam= number of photons x Planck's constant x frequency
(nhf) - 12What is annihilation?When a particle and its corresponding antiparticle meet and their mass is converted into radiation energy- producing two photons.
- 13What is pair production?A photon creates a particle and corresponding antiparticle.
- 14What is the weak nuclear force?The force responsible for beta decay.
- 15What is the Feynman diagram for Beta minus decay?
- 16What is the Feynman diagram for beta plus decay
- 17What is the Feynman diagram for a neutron-neutrino interaction
- 18What is the Feynman diagram for a proton-antineutrino interaction?
- 19What is the Feynman diagram for electron-proton collision?
- 20What is the Feynman diagram for two electrons repelling?
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- A level Physics (Particles and radiation) Flashcards on Matter and Radiation, created by Elliot Wells on 16/02/2024.
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- Elliot Wells
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