Physics Formulas

A series of free GCSE/IGCSE Physics Formulas, Notes and Lessons.

The following tables give the formulas that useful for GCSE/IGCSE Physics: Forces, Electricity, Energy, Waves, Light. Scroll down the page for more examples and songs to help you remember the formulas.

Print Physics Formulas (Forces) (pdf)
Print Physics Formulas (Electricity) (pdf)
Print Physics Formulas (Energy) (pdf)
Print Physics Formulas (Light) (pdf)


 

 

 

 

GCSE Physics Equations Song

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IGCSE Physics equation.

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Here are more physics formulas across various areas of physics:

Mechanics

1. Kinematics

• Displacement (d) = \( \Delta x = x_f - x_i \)
• Average Velocity (\( \bar{v} \)) = \( \frac{\Delta x}{\Delta t} \)
• Average Acceleration (\( \bar{a} \)) = \( \frac{\Delta v}{\Delta t} \)
• Final Velocity (\(v_f\)) = \(v_i + \bar{a} \Delta t\)

2. Dynamics

• Newton's Second Law \( F \) = \( ma \)
• Weight (\( W \)) = \( mg \)
• Frictional Force (\( f_{friction} \)) = \( \mu N \)

3. Circular Motion

• Centripetal Acceleration \( a_c \) = \( \frac{v^2}{ r} \)
• Centripetal Force \( F_c \) = \( \frac{ mv^2}{ r} \)

Energy

1. Work and Energy

• Work (\(W\)) = \( F \cdot d \) = \( \Delta KE \)
• Kinetic Energy (\(KE\)) = \( \frac{1}{2}mv^2 \)
• Gravitational Potential Energy (\(PE_{\text{gravity}}\)) = \( mgh \)
• Elastic Potential Energy (\(PE_{\text{elastic}}\)) = \( \frac{1}{2}kx^2 \)

Thermodynamics

• First Law of Thermodynamics: \( \Delta U = Q - W \)
• Ideal Gas Law: \( PV = nRT \)

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