contact and non-contact forces

Cards (20)

  • What is a force?
    A push or pull acting on an object
  • What are the two components of a force?
    Magnitude and direction
  • What is the unit of force?
    Newton
  • How can forces be categorized?
    Into contact forces and non-contact forces
  • What is a contact force?
    Force when two objects are physically touching
  • In a tug of war, what type of force is acting on the soldier?
    Tension force
  • How does friction act on an airplane landing on water?
    It slows down the airplane
  • What is air resistance?
    A contact force acting upwards on a sky diver
  • What is the normal contact force?
    Upward force exerted by a surface
  • What happens to the normal contact force when a lamp is on a table?
    It balances the weight of the lamp
  • What is a non-contact force?
    Force when objects are physically separated
  • How does gravitational force act between the Earth and the International Space Station?
    It attracts both objects towards each other
  • What is electrostatic force?
    Force between two charged objects
  • How do opposite charges interact in electrostatic force?
    They experience an attraction
  • How do like charges interact in electrostatic force?
    They experience a repulsion
  • What is magnetic force?
    Force experienced by objects in a magnetic field
  • What will be covered in later videos regarding magnetic force?
    More details about magnetic force
  • What are the main types of forces discussed?
    • Contact forces
    • Tension
    • Friction
    • Air resistance
    • Normal contact force
    • Non-contact forces
    • Gravitational force
    • Electrostatic force
    • Magnetic force
  • What are the characteristics of contact forces?
    • Occur when two objects are touching
    • Examples include tension, friction, and air resistance
    • Normal contact force acts perpendicular to the surface
  • What are the characteristics of non-contact forces?
    • Occur when objects are separated
    • Examples include gravitational, electrostatic, and magnetic forces
    • Can act over a distance without physical contact