MOTIONS

• Motion


  The action of changing location or position
• Aristotle's concept of vertical motion, horizontal motion, and projectile motion

  • Vertical motion is referred to as natural motion
  • In a natural motion, the object will move and will return to its natural state based on the object's material or composition - earth, water, air, and fire
  • Aristotelian concept of natural motion is largely vertical motion which is falling or rising
• Vertical motion


  • A ball falls when thrown upward because its element is earth
  • Smoke goes up the air because it seeks its natural place in the atmosphere
• Aristotle's concept of natural motion

  • An object will return to its natural state depending on its composition
  • An object will return to the ground if it has a similar material with the Earth
  • An object will go back to the air if it has a similar material with the air
• Natural motion


  • Aries released his toy balloon. He watched it as it slowly rises in the air
• Aristotle's concept of horizontal motion

  An object moving in a violent motion requires push or pull to maintain horizontal motion
• Horizontal motion


  • A ball kicked from the ground
• Aristotle's concept of violent motion


  • Violent motion is imposed motion caused by pushing or pulling
  • Aristotle classified any motion that required a force as a "violent motion"
• Violent motion


  • A boy was pushed from a height of a water slide
• Aristotle's concept of projectile motion

  • Projectile motion of an object is parallel to the ground until it is the object's time to fall back into the ground
  • An impetus will be kept by the object until such time that the initial force is forgotten, and the object returns to its natural state to stop moving and fall to the ground
• Projectile motion


  • The shooting of an arrow
  • A pebble shot using a slingshot
• Galileo's concept of horizontal motion

  • An object in motion, if unimpeded, will continue to be in motion, and an external force is not necessary to maintain the motion
  • Objects will continue to be in uniform motion if unimpeded
• Horizontal motion


  • If a ball is pushed on an infinitely flat plane, the ball will continue to roll if unimpeded
  • A box sliding on the floor slowly stops because there was a force that impeded the sliding box
• Galileo's concept of vertical motion

  • If the object encountered a resistive force from a fluid equal or greater than its weight, it will slow down and reaches a uniform motion until it reaches the bottom and stops
  • Without any resistance, a 1-kg object will be as fast as a 10-kg object when falling because they fall with the same amount of time, given that they are released from the same height
  • A feather will be as fast as an iron ball if dropped in a vacuum
• Galileo's concept of projectile motion

  • He believed that a projectile is a combination of uniform motion in the horizontal direction and uniformly accelerated motion in the vertical direction
  • If it is not impeded, it will continue to move even without an applied force