Gravitational Potential Energy

• What is gravitational potential energy?

  Energy stored due to an object's position
• What causes gravitational potential energy?

  The force of gravity acting on an object
• How is gravitational potential energy gained when lifting an object?

  • Chemical energy from muscles is used
  • Converted to gravitational potential energy
  • Object's position above ground increases
• What happens to gravitational potential energy when the ball falls?

  It changes to thermal and kinetic energy
• What is the formula for calculating gravitational potential energy?

  GPE = mass × gravitational field strength × height
• What units are used for gravitational potential energy?

  Joules
• What does gravitational field strength measure?

  The force of gravity acting on an object
• If a crane lifts a 75 kg mass to a height of 8 m, what is the gravitational potential energy gained?

  5,880 Joules
• How do you convert 500 grams to kilograms?

  Divide by 1,000
• What is the gravitational potential energy gained by a 0.5 kg ball lifted 1.5 m?

  7.35 Joules
• What are the steps to calculate gravitational potential energy?

  1. Identify mass in kilograms
  2. Determine gravitational field strength
  3. Measure height in meters
  4. Use the formula: GPE = mass × g × height
• What is the significance of gravitational potential energy in physics?

  It helps understand energy transformations