KINETIC ENERGY

• Kinetic energy


  The energy that an object possesses due to its motion
• Kinetic energy


  • Depends on an object's speed
  • Depends on an object's mass
• Faster an object is moving


  More kinetic energy it will have
• More mass an object has

  More kinetic energy it will have
• E_k stands for kinetic energy
• m stands for mass, measured in kilograms
• v stands for velocity, measured in meters per second
• Calculating kinetic energy


  1. Convert units to correct format

  2. Plug values into equation E_k = 1/2 m v^2
• Plane


  • Mass = 20,000 kg
  • Speed = 5 m/s
  • Kinetic energy = 250,000 J or 250 kJ
• Particle


  • Mass = 0.0001 kg
  • Speed = 4,000 m/s
  • Kinetic energy = 800 J or 0.8 kJ