Chapter 1- Kinematics Regents Physics
Intro to Kinematics
Kinematics is the mathematical treatment of the motions of bodies without regard to the forces that produce the motion.
Scalar Quantities vs. Vector Quantities
4029075747395 A scalar quantity has magnitude but not direction . For example, the odometer in your family car tells you how fast the car is moving (magnitude or numerical value) but not the direction it is moving . Therefore, the odometer is telling you a scalar quantity (in this case: speed). For example, it tells you 45 mph, but NOT 45 mph East .
Here are some examples of scalar quantities:
Distance
Time
Speed
Mass
Temperature
Energy

A vector quantity has both magnitude and direction. For example, if you ask for directions to the beach in a foreign country, a citizen may tell you 50 km East . The citizen has given you both a magnitude (numerical value) and a direction (North, South, East, West, etc.)
Here are some examples of vector quantities:
Displacement
Acceleration
Force
Momentum
206692538735 Electric Force
Magnetic Force






Practice: Determine whether the following are vectors or scalars.
40 m/s East
30 m
40 o C
20 kg(m/s) Northeast
25 N
25 N West
Distance
Displacement
Velocity
Speed
Momentum