What is the gravitational potential energy of an object of mass m at a height h

Practice Questions

Q1
What is the gravitational potential energy of an object of mass m at a height h above the Earth's surface?
  1. mgh
  2. gh/m
  3. mg/h
  4. mgh^2

Questions & Step-by-Step Solutions

What is the gravitational potential energy of an object of mass m at a height h above the Earth's surface?
Correct Answer: U = mgh
  • Step 1: Understand that gravitational potential energy is the energy an object has due to its position above the ground.
  • Step 2: Identify the mass of the object, which is represented by 'm'.
  • Step 3: Determine the height above the Earth's surface, which is represented by 'h'.
  • Step 4: Recognize that 'g' is the acceleration due to gravity, approximately 9.81 m/s² on Earth.
  • Step 5: Use the formula U = mgh to calculate the gravitational potential energy, where U is the gravitational potential energy.
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