Lesson 2 Describing motion

• A physical quantity that is describe by only magnitude, size or amount

  Scalar
• A physical quantity described by magnitude and direction and represented as an arrow

  Vector
• This is associated with change in location or position of an object

  Movement
• described in terms of the path length covered

  Motion
• A scalar quantity that is about the total movement of an object without any regard to direction

  Distance
• a scalar quanitity that combines two measurements of motion, distance and time and defines the rate of movement, its position change with time

  Speed
• It tells how fast something is moving at a certain time

  Instantaneous speed
• If the direction is given together with speed is called..

  velocity
• The measure of an objects change in postition from an initial starting point to ending point with regard to the direvtion of its travel

  displacement