Explanation

• Potential energy is a measure of the energy an object has due to its position or state, and it determines how much work the object can perform.
• The amount of potential energy an object has is a function of its mass, height, and other factors.
• It can be converted into kinetic energy (the energy of motion) when the object is released or moved.
• For example, a ball at the top of a hill has a certain amount of potential energy due to its height, and as it rolls down the hill, this potential energy is converted into kinetic energy, allowing the ball to perform work (such as moving down the hill).

Explanation

In pair production, several quantities are conserved

Let's evaluate each option:

- Charge:

A charge is conserved in pair production, as the total charge before and after the interaction remains the same

Due to the opposite but equal charges of the electron and positron.

- Energy:

Energy is conserved in pair production, with the total energy before the interaction equal to the sum of the energies of the electron and positron after the interaction.

- Linear Momentum:

Linear momentum is conserved in pair production, with the total momentum before the interaction equal to the sum of the momenta of the particles involved.

Explanation

Kinetic energy is the energy of motion, and any object that is moving has kinetic energy.

• A moving car (energy from motion)
• A moving runner (energy from motion)
• A moving bicycle (energy from motion)

Explanation

Desalination is the process by which the dissolved mineral salts in water are removed.

Explanation

 An electric generator is a device that converts mechanical energy into usable electrical energy.

This process is based on the principle of electromagnetic induction,

Discovered in 1831 by British scientist Michael Faraday