Potential energy and kinetic energy are forms

of what kind of energy?
1. mechanical
2. nuclear
3. heat
4. electromagnetic
5. chemical

1 Mechanical

Potential energy and kinetic energy are forms of mechanical energy.

The correct answer is 1. mechanical energy.

To get the answer, we must understand the definitions of potential energy and kinetic energy. Potential energy is the energy possessed by an object due to its position or state, while kinetic energy is the energy possessed by an object due to its motion. Both potential and kinetic energy are forms of mechanical energy, which is the energy associated with the motion and position of an object.

To verify this, we can eliminate the other options:

2. Nuclear energy is the energy stored in the nucleus of an atom and is not directly related to the motion or position of an object.
3. Heat energy is the energy transferred between objects due to temperature differences, but it is not strictly related to the motion or position of an object.
4. Electromagnetic energy is a form of energy associated with the electromagnetic field, such as light or electromagnetic radiation, but it is not directly related to the motion or position of an object.
5. Chemical energy is the potential energy stored in the chemical bonds of a substance, but it is not directly related to the motion or position of an object.

Therefore, the answer is 1. mechanical energy.