Question

Which energy change best relates to a boulder that is rolling down the side of a hill? potential energy transforming into kinetic energy
mechanical energy transforming into thermal energy
potential energy transforming into electromagnetic energy
mechanical energy transforming into electromagnetic energy

Answer 1

Answer : Option A) Potential energy transforming into kinetic energy.

Explanation : When the boulder is rolling down the side of a hill, it shows that when the boulder is at rest at a certain height on the hill, it has potential energy stored in it. When it is rolling down the hill the potential energy gets converted into kinetic energy as it gains velocity while moving down the hill. So, the complete energy transformation that is occurring is potential energy to kinetic energy transfer.

Answer 2

The energy change that occurs when the boulder rolls down is potential energy transforming into kinetic energy.

What is potential energy?

The potential energy of an object is the energy possessed by the object due to its position above the ground.

P.E = mgh

What is kinetic energy?

The kinetic energy of an object is the energy possessed by an object due to its motion.

K.E = ¹/₂mv²

Law of conservation of mechanical energy

The law of conservation of mechanical energy states that the total energy of an isolated system is always constant.

P.E = K.E

Thus, the energy change that occurs when the boulder rolls down is potential energy transforming into kinetic energy.

Learn more about conservation of energy here: https://brainly.com/question/166559