Mass and Energy Equivalence (VCE SSCE Physics): Flashcards

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Mass and Energy Equivalence
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Einstein's mass-energy equivalence equation

E0=mc2E_0 = mc^2

Rest energy (E0E_0)

Energy of stationary object, given by E0=mc2E_0 = mc^2

Speed of light (cc) value

3.0×1083.0 \times 10^8 m/s

Total relativistic energy formula

Etot=γmc2E_{\text{tot}} = \gamma mc^2

Lorentz factor (γ\gamma) formula

γ=11v2c2\gamma = \frac{1}{\sqrt{1 - \frac{v^2}{c^2}}}

Relativistic kinetic energy formula

Ek=(γ1)mc2E_k = (\gamma - 1)mc^2

When to use relativistic formulas

When v>0.1cv > 0.1c (speed greater than 10% of light speed)

Mass defect (Δm\Delta m)

Difference in mass between products and reactants

Nuclear fusion definition

Joining small nuclei to form larger, more stable nucleus

Positron

Antiparticle of electron, positive charge, same mass

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