LAW OF INTERACTION

• Law of Interaction


  For every ACTION, there is an equal and opposite REACTION.
• The size of the forces on the first object EQUALS the size of the force on the second object.
• The direction of the force on the first object is OPPOSITE to the direction of the force on the second object
• The acceleration of an object is directly proportional to the net force on in it and inversely proportional to its mass.
• Acceleration is defined as the rate of change in velocity with time.
• Acceleration


  It is a vector quantity having both magnitude and direction
• Applied Force


  It is as force applied to an object by a person or another object
• Contact force


  It is the force formed when two bodies are in direct contact with each other
• Normal force


  An everyday force that is felt when a surface pushes against an object that is placed on a surface
• Frictional force 


  Exerted by a surface as an object moves across it to or makes an effort to move (directed opposite the object's motion)
• Tensional force


  Transmitted through a string, rope, cable, etc. when its pulled tight
• Spring force


  Exerted by a compress or stretched spring that acts to restore the object to its original (weight of the spring)
• Non-contact force


  No physical contact and there's no need for human intervention
• Gravitational force


  A big heavenly body attracts smaller bodies toward itself
• Electrical force


  It can be defined as the attractive or repulsive force that is exerted between the poles of a m,agent and electrically charges moving particles
• Electrostatic force


  Attractive or repulsive forces between particles that are caused by their electric charges
• Magnetic force 


  Exerted between the poles of a magnet and electrically charges moving particles
• Nuclear force


  Attractive force that holds the protons and neutrons of an atom together
• Force


  A push or pull exerted by one body on another body