Chapter 1- Kinematics Regents Physics Essays (214 words)

Chapter 1- Kinematics Regents Physics Essays (214 words) 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