Physics: Types of Motion

Types of Motion

• Rectilinear Motion: Motion in a straight line.
• Circular Motion: Motion in a circular path.
• Rotational Motion: Motion around a fixed axis.
• Oscillatory Motion: Repetitive back-and-forth motion.
• Random Motion: Unpredictable and irregular motion.

Describing Motion

• Displacement: Change in position of an object from initial to final position.
• Distance: Total length of path traveled by an object.
• 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 Graphs

• Distance-Time Graph: A graph that shows distance traveled vs. time.
• Velocity-Time Graph: A graph that shows velocity vs. time.
• Acceleration-Time Graph: A graph that shows acceleration vs. time.

Equations of Motion

• v = u + at: Calculates final velocity (v) given initial velocity (u), acceleration (a), and time (t).
• s = ut + (1/2)at^2: Calculates displacement (s) given initial velocity (u), acceleration (a), and time (t).
• v^2 = u^2 + 2as: Calculates final velocity (v) given initial velocity (u), acceleration (a), and displacement (s).

Force and Motion

• Newton's First Law: An object at rest remains at rest, and an object in motion remains in motion, unless acted upon by an external force.
• Newton's Second Law: Force (F) is equal to the mass (m) of an object multiplied by its acceleration (a): F = ma.

Types of Motion

• Rectilinear motion occurs in a straight line.
• Circular motion occurs in a circular path.
• Rotational motion occurs around a fixed axis.
• Oscillatory motion is repetitive and back-and-forth.
• Random motion is unpredictable and irregular.

Describing Motion

• Displacement is the change in an object's position from initial to final.
• Distance is the total length of an object's path.
• Speed is the rate of change of distance with time.
• Velocity is the rate of change of displacement with time.
• Acceleration is the rate of change of velocity with time.

Motion Graphs

• Distance-time graphs show distance traveled vs. time.
• Velocity-time graphs show velocity vs. time.
• Acceleration-time graphs show acceleration vs. time.

Equations of Motion

• The equation v = u + at calculates final velocity given initial velocity, acceleration, and time.
• The equation s = ut + (1/2)at^2 calculates displacement given initial velocity, acceleration, and time.
• The equation v^2 = u^2 + 2as calculates final velocity given initial velocity, acceleration, and displacement.

Force and Motion

• Newton's First Law states that an object at rest remains at rest, and an object in motion remains in motion, unless acted upon by an external force.
• Newton's Second Law states that force is equal to the mass of an object multiplied by its acceleration: F = ma.