Question

A negative ion accelerates from rest through a potential difference of 120. V and gains the kinetic energy of 240. eV. Determine

a) whether the ion moves from high potential to a lower potential or another way around? Explain.

Answer 1

A negative ion accelerates from rest through a potential difference and gains kinetic energy. It moves from a high potential to a lower potential.

Step-by-step explanation:

When a negative ion accelerates from rest through a potential difference, it means that it is moving from a region of higher potential to a region of lower potential. This is because negative charges are attracted to positive charges, so they move towards areas of lower potential where positive charges are located.

In this case, the negative ion gains kinetic energy while moving through the potential difference, indicating that it is moving from a high potential to a lower potential. The potential difference of 120 V provides the energy necessary to accelerate the ion and increase its kinetic energy to 240 eV.

Therefore, the negative ion moves from a high potential to a lower potential.