Science — Quarter 3

• traveling in a straight path

  rectilinear motion
• travelling in a curved path

  curvilinear motion
• traveling in a certain angle

  angular motion
• starting point

  reference point
• Our basis in determining if an object is changing it's position

  Reference point
• is exhibited by a change in position
• 3 terms to describe motion

  * speed

  * velocity

  * acceleration
• two ways to find out how far the object travel

  * how far

  * direction
• total length of the entire path that the object or person traveled in moving from one place to another

  distance
• specified by a magnitude alone

  Scalar quantity
• Scalar quantity — single number indicating _, _ or _

  size, magnitude or dimension
• Formula of distance


  Dt = d1 + d2 + d3...
• The value of distance is always positive
• thethe shortest distance between the object's initial and final position

  Displacement
• Specified by a magnitude and a direction

  Vector Quantity
• If the path of an object is not straight, displacement may be calculated using _

  Pythagorean Theorem
• Refers to how fast the object is moving

  Speed
• tells the distance the object is travelling in a time

  Speed
• represent the speed of the object throughout its travel

  Average speed
• refers to the object at a particular instant

  Instantaneous Speed
• Instantaneous speed can be _, _ or _ that the average speed


  * equal

  * greater than

  * less
• Instantaneous speed values are always the same

  constant speed
• moves at constant speed

  uniform motion
• It is a speed with a direction

  Velocity
• Instantaneous speed with direction

  Instantaneous velocity
• velocity is the same throughout

  Constant velocity
• Refers to the rate of change in speed or velocity of an object


  Acceleration
• How quick an object speeds up or slows down


  Acceleration
• HowHow can we say that an object is accelerating?

  *The speed of the object is changing

  *The direction of the object is changing

  *The speed and direction of the object is changing
• An increase in speed or velocity


  Positive acceleration
• An decrease in speed or velocity


  Deceleration
• It gives us representation of the motion of an object


  Graph
• A very important tool in the analysis of the motion of a body


  Graph
• A continuous change in position of an object with respect to a reference point for a particular time interval


  Motion
• Are visual representation that use picturpictures or symbols to illustrate and explain an idea or information


  Diagrams
• A long strip of paper that is passed through a printing device


  Ticker tape diagram/Dot diagram
• Representation of the object's motion

  Ticker tape Diagram/ Dot diagram