potential energy
If Gravitational potential energy = weight X height, then the book should gain 4joules
The form of energy represented by a book falling off a desk is gravitational potential energy being converted to kinetic energy as the book accelerates towards the ground.
The book lying on a desk represents potential energy, specifically gravitational potential energy. When the book falls off the desk, the potential energy is converted into kinetic energy as the book moves downward due to gravity.
The potential energy of the book decreases as it falls off the table and its height decreases.
When steam condenses to form water, it releases energy in the form of heat to the surroundings. This energy is needed to break the intermolecular forces that hold the water molecules together as steam.
The result of cellular respiration is the gain of energy in the form of ATP molecules.
Water gains energy as it evaporates to form steam. The energy is used to break the bonds between water molecules and convert them from liquid to gas.
They gain energy by eating food.
The object gains potential energy when you do work to lift it. This potential energy is due to its position in the gravitational field.
Atoms of group 17 elements (halogens) give off energy in the form of light when they gain electrons. This process is known as electron capture, which releases energy as the electron moves to a lower energy level.
How does a book on a higher shelf have more potential energy than a book on the lower shelf
Potential energy, specifically gravitational potential energy, since the book has the potential to fall due to gravity when it is on the high shelf.