1.9 Identify various types of force (eg. gravitational, electrostatic ect.)

  • Weight – force that acts on a body because of gravity
  • Friction – Force that opposes motion
  • Air Resistance (drag) – Friction between an object and the air
  • Viscous drag – Friction through liquids
  • Upthrust – upward force that liquids and gases exert on objects
  • Electrostatic – Force between electrically charged objects
  • Normal reaction – Special name for contact force – (an object pressing down on another object)
  • Magnetic – Forces that magnets exert on other magnets (or other ferrous materials)
  • Tension – in strings, cables and ropes (stretched not slack)
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