4TH QUARTER | SCIENCE 9 | FORCE AND MOTION

• Force - The resultant effect of a push or pull on an object.
• Distance - total length along a path between two points.
• Displacement - measure of the actual change in place or position to a given direction.
• Speed - distance covered in a given time interval.
• Velocity - total displacement covered in a given time 


  Unit (m/s or m/s²)
• Acceleration - the measure of how velocity changes with time.
• UAM (Uniformly Accelerated Motion: Horizontally Dimension) - a constant change of acceleration.
• The Kinematic Equation 


  $D =$$Vi(t) +$$1/2 (a) (t)$
• The Kinematic Equation 


  $Vf =$$Vi +$$a(t)$
• The Kinematic Equation 


  $Vf^2 =$$Vi^2 +$$2(a)(d)$
• The Kinematic Equation 


  $D =$$Vi +$$Vf/2 (t)$
• Horizontal = Constant
• Vertical = Free fall motion
• 9.8m/s² is the gravity/acceleration at it's constant.
• Projectile motion - combination of horizontal and vertical.
• Projectile motion


  • Combination of horizontal & Vertical motion
• Projectile


  The object that is subject to the force of gravity
• Trajectory


  The curved path by the projectile
• Horizontally launched Projectile


  • Objects projected in horizontal direction from an elevated position
  • Projectiles which have no upward trajectory and no initial VERTICAL velocity
• Projectile motion


  Combination of horizontal & Vertical motion
• Projectile

  The object that is subject to the force of gravity
• Trajectory


  The curved path by the projectile
• Horizontally launched Projectile

  • Objects projected in horizontal direction from an elevated posution
  • Projectiles which have no upward trajectory and no intial VERTICAL velocity