Physics Formulas Summary PDF
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This document provides a summary of physics formulas, covering topics such as circular motion, work and energy, and conservation of energy. It details equations for angular displacement, velocity, work, power, and kinetic energy. The document is suitable for secondary school students learning physics.
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Physics Formulas Summary 1. Circular Motion: ------------------- - Angular Displacement (theta): theta = s / r Where: - s = arc length (meters) - r = radius (meters) - Angular Velocity (omega): omega = theta / t Where: - omega = angular velocity (radians/second) -...
Physics Formulas Summary 1. Circular Motion: ------------------- - Angular Displacement (theta): theta = s / r Where: - s = arc length (meters) - r = radius (meters) - Angular Velocity (omega): omega = theta / t Where: - omega = angular velocity (radians/second) - theta = angular displacement (radians) - t = time (seconds) - Linear and Angular Quantities: v = r * omega (linear velocity) a = r * alpha (linear acceleration) 2. Work and Energy: ------------------- - Net Work (Sigma W): 1. Work-Energy Theorem: Sigma W = Delta KE = KE_b - KE_a Where: - KE = (1/2) * m * v^2 2. Work from Force and Displacement: W = F * d * cos(theta) Where: - F = force (N) - d = displacement (m) - theta = angle between force and displacement 3. Work from Power and Time: W=P*t Where: - P = power (W) - t = time (s) 4. Net Work from Multiple Forces: Sigma W = W_1 + W_2 + W_3 +... - Potential Energy (PE): 1. Gravitational Potential Energy (GPE): PE_gravity = m * g * h Where: - m = mass (kg) - g = gravitational acceleration (9.8 m/s^2) - h = height (m) 2. Elastic Potential Energy (EPE): PE_elastic = (1/2) * k * x^2 Where: - k = spring constant (N/m) - x = displacement from equilibrium (m) 3. Conservation of Energy: ------------------------- - Without External Forces: Sigma E_a = Sigma E_b Where: - E_a = total energy at point A - E_b = total energy at point B - With External Forces: Sigma E_a = Sigma E_b + Sigma W Where: - Sigma W = work done by external forces 4. Linear and Rotational Energy Relationships: ------------------------------------------- - Linear Kinetic Energy (KE): KE = (1/2) * m * v^2 - Rotational Kinetic Energy (KE_rot): KE_rot = (1/2) * I * omega^2 Where: - I = moment of inertia - omega = angular velocity 5. Power: -------- - Power: P=W/t Where: - P = power (W) - W = work (J) - t = time (s)
