Question

Johanna is studying what happens to the energy as a ball rolls down a ramp. What is she studying? Select three options.

gravitational potential energy
electrical energy
kinetic energy
mechanical energy
elastic potential energy

Answer 1

Answer:

kinetic energy

Explanation:

because when a ball rolls down a ramp the potential energy is converted to kinetic energy

Answer 2

Johanna is studying the conversion of (1) Gravitational potential energy, (2) Kinetic energy and (3) Mechanical energy.

• Gravitational potential energy is the energy stored in an object due to its position relative to a reference point, such as the ground. As the ball rolls down the ramp, it gains speed and thus kinetic energy. Kinetic energy is the energy an object possesses due to its motion.

• When the ball is rolling down the ramp, both its gravitational potential energy and kinetic energy are changing. Gravitational potential energy is being transformed into kinetic energy and vice versa. This change in energy can be described as the transfer of energy from one form to another, which is known as mechanical energy.

• Mechanical energy is the sum of an object's kinetic energy and potential energy. In this case, the mechanical energy of the ball is conserved as it rolls down the ramp, meaning that the total amount of mechanical energy remains constant, even though its components, gravitational potential energy and kinetic energy, are changing.

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