# SAT II Physics

Flashcards by SAT Prep Group, updated more than 1 year ago
 Created by SAT Prep Group over 7 years ago
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### Description

SAT II Physics vocabulary Flashcards and Formulas. For more great insights on SAT and exam prep head on over to www.satprepgroup.com

## Resource summary

 Question Answer Threshold frequency explanation? Minimum frequency that needs to illuminate a metal surface for photoELECTRONS to be emitted Formula for energy of a photon? E=hf (= Planck's constant*frequency) Threshold frequency formula? Threshold frequency=Φ/h (= work functions/planck's constant) Formula for energy levels within any atom? En= [Z²/n² * -13.6ev ] (Z is number of protons in atom's nucleus, n is energy level number) Energy of an emitted photon formula? Energy of emitted photon = E₂-E₁ (=Energy level higher- Energy level lower) deBrolglie wavelength formula λ=h/p (where p= MOMENTUM=mΔv, and h is planck's constant) Binding energy formula Ebinding= Δm * c² (= (Δm)c²) energy in a reaction q formula? Q= [(mass of A + mass of B) - (mass of C + mass of D)] c² (where A+B-->C+D) Relativistic formula for velocity Vstationary obj.= [u+v] / [1 + uv/c²] (where u is velocity of large object, and v is velocity of "thrown" object relative to large object) Relativistic formula for time ΔTstationary= Y (ΔTmoving)

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