Page 1: Strong Nuclear Force and Potential Energy

Strong Nuclear Force

• When two nuclei approach each other closely, the strong nuclear force becomes significant.

• As nuclei get closer than nuclear size, potential energy decreases.

• Coulombic Barrier: At first, protons repel each other due to electrostatic forces, increasing potential energy.

Potential Energy Diagram

• Draw a potential energy diagram starting with protons far apart and moving them closer.

• Correct answer if you identified the shape matching option "C".

• Key Points:

  • Potential energy first increases as particles face electrostatic repulsion.

  • Once the barrier is surpassed, strong nuclear force attracts and lowers potential energy.

  • Energy released during fusion is comparable to bond formation.