Science 4th perio test

• Projectile motion


  A form of motion where an object given an initial velocity is thrown or projected and is allowed to be acted on by gravity in a curved-like path
• Projectile motion


  • Combination of horizontal motion with constant velocity and vertical motion with constant acceleration

  
• Projectile


  An object given an initial velocity thrown
• Trajectory


  The curved path followed by a projectile
• Angle


  A numerical value in degrees expressing the orientation of the projectile to be thrown

  
• Range


  Horizontal distance travelled by a projectile between the launching
• Angle of release


  Directly proportional to height reached by the projectile
• Angle of release


  The optimum angle is 45 degrees, as the angle increases or decreases from there, the range of the projectile will decrease
• Initial speed


  Directly proportional to height reached by the projectile

  
• Initial speed


  Directly proportional to range reached by the projectile
• Projectile motion


  1. Ascends (point A to B), vertical velocity decreasing

  2. Reaches maximum height (point B), vertical velocity zero

  3. Descends (point B to C), vertical velocity increasing

  
• When angle is zero, projectile is launched along horizontal displacement only with no vertical displacement
• When angle is 90 degrees, resulting horizontal displacement is zero, and vertical displacement along y-axis only
• Between 1 and 89 degrees, projectile motion is evident given an initial velocity

  
• When angle is 45 degrees, resulting horizontal displacement is maximum with high vertical displacement
• When angle is 89 degrees, resulting vertical displacement is maximum with low horizontal displacement
• An angle of release of 80 degrees will have the same range as 10 degrees
• The angle of release that will yield the maximum range is 45 degrees
• Without air resistance, speed last while going up equals speed gained
• As the projectile moves forward horizontally with uniform velocity, its vertical velocity is also accelerated creating a trajectory that is a parabola

  
• Projectile always maintains a constant horizontal velocity
• Projectile motion


  A form of motion where an object given an initial velocity is thrown or projected and is allowed to be acted on by gravity in a curved-like path
• Projectile motion


  • Combination of horizontal motion with constant velocity and vertical motion with constant acceleration
• Projectile


  An object given an initial velocity thrown
• Trajectory


  The curved path followed by a projectile
• Angle


  A numerical value in degrees expressing the orientation of the projectile to be thrown
• Range


  Horizontal distance travelled by a projectile between the launching
• Angle of release

  Directly proportional to height reached by the projectile
• Angle of release


  The optimum angle is 45 degrees, as the angle increases or decreases from there, the range of the projectile will decrease
• Initial speed


  Directly proportional to height reached by the projectile

  
• Initial speed


  Directly proportional to range reached by the projectile
• Projectile motion


  1. Ascends (point A to B), vertical velocity decreasing

  2. Reaches maximum height (point B), vertical velocity zero

  3. Descends (point B to C), vertical velocity increasing

  
• When angle is zero, projectile is launched along horizontal displacement only with no vertical displacement
• When angle is 90 degrees, resulting horizontal displacement is zero, and vertical displacement along y-axis only
• Between 1 and 89 degrees, projectile motion is evident given an initial velocity
• When angle is 45 degrees, resulting horizontal displacement is maximum with high vertical displacement
• When angle is 89 degrees, resulting vertical displacement is maximum with low horizontal displacement
• An angle of release of 80 degrees will have the same range as 10 degrees
• The angle of release that will yield the maximum range is 45 degrees
• Without air resistance, speed last while going up equals speed gained