Types of force

• Push and Pull - Force

  Types of force

  1.Contact Force - a type of force that result's from direct contact between two surfaces.

  Ex. Catching the ball / Friction

  2.Noncontact Force - is a force that does not involve direct contact.

  Ex. Gravity
• Friction - is a contact force that is present whenever the surfaces of two materials are in contact with each other. It is the force that resists the movement of the materials over another.

  • The attraction of the particles of two materials when their bumps and hallow rub against each other.
• *a smooth surface produces less friction.

  *a rough surface produces greater friction.