* Displacement: The change in position of an object. It's a vector quantity, meaning it has both magnitude (how far) and direction.
* Velocity: The rate of change of displacement. It's also a vector quantity.
* Speed: The magnitude of velocity (how fast). It's a scalar quantity, meaning it only has magnitude.
* Acceleration: The rate of change of velocity. It's a vector quantity.
* Time: The duration of an event or process. It's a scalar quantity.
These quantities can be further described with specific terms:
* Uniform motion: Motion with constant velocity (zero acceleration).
* Non-uniform motion: Motion with changing velocity (non-zero acceleration).
* Instantaneous velocity: The velocity of an object at a specific moment in time.
* Average velocity: The total displacement divided by the total time.
Key Equations:
* Displacement: Δx = x₂ - x₁ (where x₂ is the final position and x₁ is the initial position)
* Velocity: v = Δx / Δt (where Δt is the change in time)
* Acceleration: a = Δv / Δt
Using these quantities and equations, we can describe and analyze the motion of objects in a precise and quantitative manner.