Gr 10 Physical Sciences Ch 17: Potential energy
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Questions and Answers

What is the unit symbol of gravitational potential energy?

  • J (correct)
  • N
  • kg
  • m/s²

    • Which of the following is not a type of potential energy?

  • Kinetic potential energy (correct)
  • Chemical potential energy
  • Electrical potential energy
  • Gravitational potential energy

    • What is the energy an object has due to its position in a gravitational field relative to some reference point?

  • Electrical potential energy
  • Gravitational potential energy (correct)
  • Chemical potential energy
  • Kinetic energy

    • What is the formula to calculate gravitational potential energy?

    <p>E_P = mgh</p> Signup and view all the answers

    What happens to an object's gravitational potential energy when it is lifted?

    <p>It increases</p> Signup and view all the answers

    What is the gravitational acceleration on Earth?

    <p>9.8 m/s²</p> Signup and view all the answers

    What happens to an object's gravitational potential energy as it falls from a height?

    <p>It decreases</p> Signup and view all the answers

    What is the definition of potential energy?

    <p>The energy an object has due to its position or state</p> Signup and view all the answers

    What is potential energy?

    <p>A form of stored energy due to an object's position or state</p> Signup and view all the answers

    What factors does gravitational potential energy depend on?

    <p>An object's mass, height, and gravitational field</p> Signup and view all the answers

    What happens to the potential energy of an object as it falls?

    <p>It decreases with height and increases as the object descends</p> Signup and view all the answers

    What is the potential energy of the suitcase when it reaches the floor?

    <p>0 J</p> Signup and view all the answers

    What happens to the gravitational potential energy of an object as it reaches the reference point?

    <p>It becomes zero</p> Signup and view all the answers

    What is the significance of the maximum height in relation to gravitational potential energy?

    <p>It is the point where the object's potential energy is highest</p> Signup and view all the answers

    What is the main reason why an object gains potential energy when it is lifted?

    <p>Because of the work done against the gravitational force</p> Signup and view all the answers

    What is the effect of increasing the mass of an object on its gravitational potential energy?

    <p>It increases</p> Signup and view all the answers

    What is the relationship between the height of an object and its gravitational potential energy?

    <p>Gravitational potential energy is directly proportional to the height</p> Signup and view all the answers

    What happens to the gravitational potential energy of an object as it moves from a higher to a lower position in a gravitational field?

    <p>It decreases</p> Signup and view all the answers

    Which of the following types of energy is converted into kinetic energy when an object falls from a height?

    <p>Gravitational potential energy</p> Signup and view all the answers

    What is the significance of the reference point in the context of gravitational potential energy?

    <p>It is the point where the gravitational potential energy is zero</p> Signup and view all the answers

    What is the relationship between the gravitational acceleration and the gravitational potential energy of an object?

    <p>Gravitational potential energy is directly proportional to the gravitational acceleration</p> Signup and view all the answers

    What is the main characteristic of gravitational potential energy?

    <p>It is a type of energy that is stored and can be converted into other forms</p> Signup and view all the answers

    What is the primary reason why an object's gravitational potential energy increases with height?

    <p>Because the object's position in the gravitational field is changed</p> Signup and view all the answers

    What can be inferred about an object's energy at the reference point?

    <p>It has zero gravitational potential energy</p> Signup and view all the answers

    What is a characteristic of the gravitational potential energy of an object?

    <p>It depends on the object's mass and height</p> Signup and view all the answers

    What happens to the energy of an object as it falls from a height?

    <p>It is converted from one form to another</p> Signup and view all the answers

    What is the significance of the reference point in relation to gravitational potential energy?

    <p>It is the point where the object has zero potential energy</p> Signup and view all the answers

    What can be said about the energy of an object at its maximum height?

    <p>It is entirely potential energy</p> Signup and view all the answers

    What is the primary source of energy that is converted into kinetic energy when an object falls from a height?

    <p>Gravitational potential energy</p> Signup and view all the answers

    An object is lifted from the ground to a height of 10 meters. What happens to its gravitational potential energy?

    <p>It increases</p> Signup and view all the answers

    Which of the following is a correct statement about gravitational potential energy?

    <p>It depends on the object's mass and height</p> Signup and view all the answers

    What is the significance of the reference point in the context of gravitational potential energy?

    <p>It is the point where the object has zero potential energy</p> Signup and view all the answers

    What happens to the gravitational potential energy of an object as it moves from a higher to a lower position in a gravitational field?

    <p>It decreases</p> Signup and view all the answers

    Which of the following is a correct statement about the relationship between gravitational potential energy and kinetic energy?

    <p>Kinetic energy is converted into gravitational potential energy when an object falls</p> Signup and view all the answers

    What is the significance of the mass of an object in the context of gravitational potential energy?

    <p>It increases gravitational potential energy</p> Signup and view all the answers

    What is the relationship between the height of an object and its gravitational potential energy?

    <p>They are directly proportional</p> Signup and view all the answers

    At what point does an object's gravitational potential energy become zero?

    <p>At the reference point</p> Signup and view all the answers

    What happens to the gravitational potential energy of an object as it moves from a lower to a higher position in a gravitational field?

    <p>It increases</p> Signup and view all the answers

    What is the primary reason why an object's gravitational potential energy is highest at the maximum height?

    <p>Due to its maximum height</p> Signup and view all the answers

    What is the relationship between an object's mass and its gravitational potential energy?

    <p>They are directly proportional</p> Signup and view all the answers

    What happens to the energy of an object as it falls from a height if there is no air resistance?

    <p>It is converted into kinetic energy</p> Signup and view all the answers

    What is the significance of the reference point in the context of gravitational potential energy?

    <p>It is the point where the object's potential energy is zero</p> Signup and view all the answers

    What happens to the energy of an object as it falls from a height, assuming no air resistance?

    <p>It is converted into kinetic energy and other forms of energy.</p> Signup and view all the answers

    Why does an object's potential energy decrease as it falls?

    <p>Because its height above the reference point decreases.</p> Signup and view all the answers

    What is the primary reason why an object's gravitational potential energy is highest at the maximum height?

    <p>Because of its maximum height above the reference point.</p> Signup and view all the answers

    What happens to an object's gravitational potential energy when it is at the reference point?

    <p>It becomes zero.</p> Signup and view all the answers

    What is the relationship between an object's height and its potential energy?

    <p>As the height increases, the potential energy increases.</p> Signup and view all the answers

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