Kinetic and gravitational potential energy

• Kinetic energy


  The energy of a moving object

  
• Ek = 1/2 mv²


  The equation linking kinetic energy, mass and speed

  
• Ek


  The symbol for kinetic energy
• m


  The symbol for mass
• v


  The symbol for speed or velocity
• Joules (J)


  The SI unit for energy and work

  
• Kilograms (kg)


  The SI unit for mass

  
• Metres per second (m/s)


  The SI unit for speed or velocity

  
• Gravitational potential energy


  The energy of an object raised against gravity

  
• Ep = mgh

  The equation linking gravitational potential energy, mass, gravitational field strength and height

  
• Ep


  The symbol for gravitational potential energy
• g


  The symbol for gravitational field strength
• h

  The symbol for height
• Newtons per kilogram (N/kg)


  The SI unit for gravitational field strength

  
• Metres (m)


  The SI unit for height