One Dimensional Kinematics

One Dimension

straight line to left or right, up or down, east or west, etc.

Kinematics

the study of motion where we are not concerned with the forces causing that motion

Magnitude

a number of value

Scalar

a quantity that only has a magnitude

Examples of scalar

mass, temperature, time

Vector

a quantity that has both a magnitude and a direction

Examples of vector

velocity, force

Distance

a scalar quantity that refers to how much ground an object has covered its motion

Displacement

a vector quantity that refers to how far your ending point is from the starting point (final position - initial position)

Speed

the ratio of the distance and time (speed = distance/time)

Velocity

the ratio of displacement and time (velocity = displacement/time)

Is velocity and speed always positive?

Speed can never be negative, but velocity can be positive or negative

Acceleration Formula

acceleration = displacement/time (m/s²)