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KINETIC ENERGY

LESSON 2
ENERGY AN OBJECT HAS DUE TO MOTION. 
THIS CAN BE ANY OBJECT FROM THE SIZE OF A STAR TO THE SIZE OF AN ELECTRON.

VIDEO:  CALCULATING KINETIC ENERGY

Main things to get from this video are the equation, the visuals, and the example problem.  Don't worry about angular velocity, although it's great for you to at least hear it.

PRACTICE:  PLEASE DO THE DISCOVERY EDUCATION LESSON

PRACTICE:  PLEASE DO THE DISCOVERY EDUCATION LESSON

FOR YOUR NOTEBOOK:

Lesson 2:  Kinetic Energy

Vocabulary and Notes:

Mass - The amount of matter in an object, measured in kilograms (kg)

Velocity - An object's directional speed, measured in directional distance/time (m/s)

KE - Kinetic Energy

   A. Kinetic Energy Equation

         1. KE = .5 x m x (v)²

         2. Always remember "order of operations" or "PEMDAS" when calculating.

         3. Example:  If m = 4kg and v = 10m/s,

                                                                                           KE = .5 x m x (v)²                                                                                                                                                               KE = .5 x 4kg x (10m/s)²

                                                                                           KE = 200 J

    B. Anything at any size has Kinetic Energy if it's moving.

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