Physics » H. Modern Physics » H.2. Special Relativity

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Special Relativity Overview--The Two Postulates of Special Relativity

• Overview

The Relativity of Velocity

• Overview
• Determining the relative velocity of an object using formula v'  =  (u + v)/(1 + uv/c² )  

The Relativity of Time

• Overview
• Determining the observed time interval in a fixed frame of reference using the equation t =  t_0/√(1-v²/c² )

The Relativity of Length

• Overview
• Recognizing how the perceived length of an object changes as it approaches the speed of light
• Determining the observed length of an object in a fixed frame of reference using the equation L = L₀ √ (1- (v²/c²))

Relativistic Mass and Energy

• Overview
• Recognizing how the perceived mass of an object changes as it approaches the speed of light
• Determining the observed mass of an object in a fixed frame of reference using the equation m = m₀/√ (1-v²/c²)
• Determining the rest energy for an object using the equation E₀ = m_oc²