Forces

• Weight is the force that acts on an object due to gravity
• Friction is the resistance that one surface or object encounters when moving over another
• Drag is the force that resists the relative motion of an object moving through a fluid such as air or water
• Air resistance is the force acting on an object that is moving through air flowing in opposite direction
• Tencion is the force transmitted through a rope or wire when pulled by forces
• Electrostatic force is the attractive or repulsive force between two charged objects
• Magnetic force is the attraction or repulsion that arises between electrical charged particles of their motion
• Thrust is the force that pushes an object forward by expelling or accelerating mass in opposite direction
• Contact force is a force that is applied by objects in contact with each other
• Newton's first law: if no net force acts on a body, the body continues to maintain its initial state of rest or motion with constant speed
• Newton's second law: if a force act on a body then the body accelerates in the direction of the force and the net force is the product of mass of the body and the acceleration
• Newton's third law: when object A exert a force, then the object B exerts equal and opposite reaction
• Resultant force = mass × acceleration
• Acceleration= resultant force/mass
• Frictional force is its effect are felt when 2 bodies are in contact with each other
• Elastic deformation is when the object returns to its original shape after the force is remove
• Factors affecting centripetal force:speed, radius, mass