What kind of energy is invloved in hearing and vision?

Answer 1

When a sound is produced, it is carried as vibrations through the air. these vibrations enter the ear and make the ear drum vibrate. This is kinetic energy. The inner ear converts this kinetic energy into electrical energy, which travels along the nerves to the brain.

Light enters the eye as electro-magnetic energy. This energy is converted by the retina first into chemical energy, which is then converted to electrical energy in the nerves as the signal travel to the brain.

Where nerves join other nerves, the signal has to jump across a gap called a synapse. This is done by converting the energy back into chemical energy, the chemical energy travels across the synapse and is converted back into electrical energy.

In short:

Ears - Kinetic, electrical and chemical

Eyes - Electromagnetic (light), electrical and chemical

Answer 2

Hearing involves mechanical energy, specifically sound waves that travel through the air and vibrate the eardrum. Vision involves electromagnetic energy, specifically light waves that enter the eye and are converted into electrical signals by the retina.