Physics of Motion

Types of Motion

• Translational Motion: Motion along a straight line or a curved path.
• Rotational Motion: Motion around a fixed axis.
• Oscillatory Motion: Repeated back-and-forth motion around a fixed point.
• Vibratory Motion: Rapid oscillations about a fixed point.

Describing Motion

• Distance: Total length of the path traveled.
• Displacement: Shortest distance between initial and final positions.
• Speed: Rate of change of distance with time.
• Velocity: Rate of change of displacement with time.
• Acceleration: Rate of change of velocity with time.

Motion in One Dimension

• Uniform Motion: Constant speed in a straight line.
• Uniformly Accelerated Motion: Constant acceleration in a straight line.

Motion in Two and Three Dimensions

• Projectile Motion: Motion under gravity, with both horizontal and vertical components.
• Circular Motion: Motion in a circular path, with constant speed and changing direction.

Key Concepts

• Inertia: Tendency of an object to resist changes in motion.
• Force: Push or pull that causes acceleration.
• Newton's Laws of Motion:
  1. Inertia: An object at rest remains at rest, and an object in motion remains in motion, unless acted upon by an external force.
  2. Force and Acceleration: Force is equal to the rate of change of momentum.
  3. Action and Reaction: Every action has an equal and opposite reaction.