Physics: Uniform and Non-uniform Motion

Study Notes

Uniform motion: An object moves with a constant velocity, covering equal distances in equal time intervals.
Non-uniform motion: An object moves with a changing velocity, covering unequal distances in equal time intervals.

Displacement: The shortest distance between the initial and final positions of an object.
Distance: The total length of the path traveled by an object.
Key difference: Displacement is a vector quantity, while distance is a scalar quantity.

Velocity: The rate of change of an object's position with respect to time.
Acceleration: The rate of change of an object's velocity.
Units: Velocity (m/s), Acceleration (m/s²)
Key equation: a = Δv / Δt, where a is acceleration, Δv is change in velocity, and Δt is time interval.

Types of graphs:
- Distance-time graph: A straight line indicates uniform motion, while a curved line indicates non-uniform motion.
- Velocity-time graph: A straight line indicates uniform acceleration, while a curved line indicates non-uniform acceleration.
- Acceleration-time graph: A straight line indicates uniform acceleration, while a curved line indicates non-uniform acceleration.
Interpretation: The slope of a graph represents the rate of change of the corresponding quantity.

Relative motion: The motion of an object relative to a reference frame or another object.
Key concept: Motion is relative, and the same motion can be described differently from different reference frames.
Types of relative motion:
- Translational motion: Object moves in a straight line relative to a reference frame.
- Rotational motion: Object rotates around a fixed axis relative to a reference frame.
- Circular motion: Object moves in a circular path relative to a reference frame.

Motion types: Uniform motion (constant velocity, equal distances in equal time) and non-uniform motion (changing velocity, unequal distances in equal time)

Displacement definition: Shortest distance between initial and final positions
Distance definition: Total length of the path traveled by an object
Key difference: Displacement is a vector quantity, while distance is a scalar quantity

Velocity definition: Rate of change of an object's position with respect to time
Acceleration definition: Rate of change of an object's velocity
Units: Velocity (m/s), Acceleration (m/s²)
Key equation: a = Δv / Δt, where a is acceleration, Δv is change in velocity, and Δt is time interval

Graph types: Distance-time, velocity-time, and acceleration-time graphs
Graph interpretation: Slope of a graph represents the rate of change of the corresponding quantity
Uniform motion indication: Straight line on distance-time graph
Non-uniform motion indication: Curved line on distance-time graph
Uniform acceleration indication: Straight line on velocity-time graph
Non-uniform acceleration indication: Curved line on velocity-time graph

Relative motion definition: Motion of an object relative to a reference frame or another object
Key concept: Motion is relative, and the same motion can be described differently from different reference frames
Types of relative motion: Translational, rotational, and circular motion
Translational motion: Object moves in a straight line relative to a reference frame
Rotational motion: Object rotates around a fixed axis relative to a reference frame
Circular motion: Object moves in a circular path relative to a reference frame