Kinematics

Distance

The total length of the path traveled by an object. it is a scalar quantity, meaning it has only magnitude and no direction

Displacement

The change in position of an object from its initial position to its final position. It is a vector quantity, meaning it has both magnitude and direction

Scalar Quantities

Mass, temperature, time, speed, distance, energy, and power

Vector Quantities

Displacement, velocity, acceleration, force, and momentum

Scalar

Represented by a single number and are usually measured in units such as kilograms, seconds, and meters

Vectors

has both magnitude and direction

Equation for Speed

S=D/t

Equation for Velocity

V=x/t

Speed

a scalar quatintiy, refers to how fast an object is moving

Velocity

a vector quantity, refers to the rate at which an object changes its position

Acceleration

the rate of change of velocity with respect to time. It is a vector quantity,meaning it has both magnitude and direction

Equation for Acceleration

a=(vf-vi)/t

Non-Uniform Acceleration

when an object´s acceleration changes over time

Free Fall

A special case of uniform acceleration where an object is falling under the influence of gravity

Equation for free fall

d=(1/2)gt²

Uniform Acceleration

a type of motion where the acceleration of an object remains constant

Kinematics Equations

• v = v₀ + at (missing Δx)

• Δx = v₀t + ½at² (missing v)

• Δx = ½(v₀ + v)t (missing a)

• v² = v₀² + 2aΔx (missing t)