![Page 1: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/1.jpg)
AS Physics – Module 1
![Page 2: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/2.jpg)
Definitions
For each term, think of a definition.
After 15 seconds, the definition will appear
…as if by magic!
Then play the ppt again and see how many you can remember
![Page 3: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/3.jpg)
Current
“The rate of flow of charge”
Potential Difference
“The energy transferred when unit charge passes between two points”
1 Volt =
“1 Volt = 1 Joule/Coulomb”
Resistance
“R=V/I”
Ohm’s Law
“Current is proportional to p.d. provided temperature remains constant”
Current Electricity
![Page 4: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/4.jpg)
Power“Rate of energy transfer”Kirchoff’s First Law“Conservation of charge – at any junction the algebraic sum of
the currents is zero”Kirchoff’s Second Law“Conservation of energy – the algebraic sum of potential
differences around a closed circuit is zero”EMF“The energy transferred to unit charge as it passes through a
cell”Or “The p.d. across the source when no current flows”Internal Resistance“Energy transferred within a cell as charge flows through it”
Current Electricity
![Page 5: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/5.jpg)
Peak Value“Maximum displacement from the zero line, labelled either I0
or V0”Peak to Peak Value“Maximum displacement across both directions (+ and -) Time Period“Time for one complete cycle, T”Frequency“Number of cycles (waves) per second, measured in Hertz”root mean square value“The effective d.c. value that would produce the same
heating effect in a resistor”
Current Electricity
![Page 6: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/6.jpg)
Proton“Positive constituent of an atom’s nucleus”Neutron“Neutral constituent of an atom’s nucleus”Electron“Negatively charged particle orbiting the nucleus”Atomic number or Proton number“Number of protons in the nucleus (also equal to number of electrons)”Nucleon number or Mass number“Number of protons and neutrons in an atom’s nucleus”Isotope“A form of an element with the same proton number but different
neutron number”
Particles
![Page 7: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/7.jpg)
Antimatter“Mirror image of a particle with identical mass but opposite
charge and other quantum properties”Annihilation“Conversion of mass to energy – particle and antiparticle are
converted into a pair of photons”Pair Production“A high energy photon is converted into a pair of particles”
Particles
![Page 8: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/8.jpg)
Strong Force“Force experienced by hadrons (baryons and mesons)”Weak Force“Force experienced by leptons and hadrons, responsible for
changes to quark composition”Electromagnetic Force“Force experienced by charged particles”Gravity“Force experienced by all particles with mass”
Particles
![Page 9: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/9.jpg)
Fundamental Particles“Can’t be broken down into smaller particles: Leptons are
fundamental”Leptons“Electron, muon, tau, (Q=-1 for all), electron neutrino, muon
neutrino, tau neutrino and their anti-particles)Hadrons“Baryons: 3 quarks, Antibaryons: 3 antiquarks, mesons: quark
and an anti-quark”
Particles
![Page 10: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/10.jpg)
Photoelectric EffectElectrons are emitted from the surface of a metal when the
frequency of light is above a threshold valueThreshold FrequencyThe minimum frequency of light needed to cause emission of an
electron from a metalWork FunctionThe energy needed to remove an electron from the surface of a
metalElectronvoltAmount of energy gained by an electron accelerated through a
p.d. of 1VoltExcitationElectron moves up an energy levelIonisationElectron becomes free from the atom
Particles
![Page 11: AS Physics – Module 1. Definitions For each term, think of a definition. After 15 seconds, the definition will appear …as if by magic! Then play the ppt](https://reader035.vdocuments.us/reader035/viewer/2022071806/56649d225503460f949f8427/html5/thumbnails/11.jpg)
Wave-Particle DualityThe ability for waves to behave like particles and particles to
behave like wavesWave nature of particlesElectron DiffractionParticle nature of wavesPhotoelectric effectdeBroglie WavelengthA particle of momentum p should have an associated wavelength
λ
Particles