GPE and Ke

• What is GPE

  Gravitational Potential Energy
• What is Ke

  Kinetic Energy
• What is the equation for Gravitational Potential Energy (GPE)?

  GPE = mass x gravity x height
• What does GPE stand for in physics?

  Gravitational Potential Energy
• What is the value of gravity on Earth used in GPE calculations?

  9.81N/kg
• In GPE calculations, what does the variable 'm' represent?

  Mass of the object
• In GPE calculations, what does the variable 'h' represent?

  Height of the object above the ground
• If an object is 100m off the ground with a mass of 100kg, what is its GPE?

  GPE = 98100 J
• What is the equation for kinetic energy (Ek)?

  Ek = ½ mv²
• In the kinetic energy equation, what does the variable 'v' represent?

  Velocity of the object
• If the kinetic energy of an object is 1000J and the mass is 12kg, how do you find the velocity?

  Use the equation Ek = ½ mv²
• What is the velocity of an object with a kinetic energy of 1000J and mass of 12kg?

  v = 12.9 m/s
• What does the variable 'Ek' represent in the kinetic energy equation?


  Kinetic energy of the object
• How do you rearrange the kinetic energy equation to solve for velocity?

  v = √(2*Ke)/m
• What units are used for gravitational potential energy (GPE)?

  Joules (J)
• What is the significance of the factor ½ in the kinetic energy equation?

  It accounts for the relationship between mass and velocity in kinetic energy
• What units are used for kinetic energy (Ek)?

  Joules (J)
• How does the height affect the gravitational potential energy of an object?

  Higher height increases the GPE
• How does mass affect the kinetic energy of an object?

  Increased mass increases the kinetic energy
• What is the relationship between velocity and kinetic energy?

  Kinetic energy increases with the square of the velocity