From the food we eat.
The energy used by a person to lift a chair is mechanical energy. This energy is converted from the chemical energy stored in the person's muscles to the kinetic energy of the chair and the person as they perform the lifting action.
The type of energy involved with a person walking is mainly mechanical energy. This energy comes from the chemical potential energy stored in the person's body, which is converted to kinetic energy as they move.
No, it is not possible for a person to have zero mechanical energy. Mechanical energy is the sum of an object's kinetic and potential energy, and as long as the person is in motion or has the potential to be in motion, they will have mechanical energy.
Chemical energy from the person's muscles is turned into potential energy.
A person climbing a ladder is using mechanical energy, if you are talking about types of energy.
A person who studiesenergy is called an intergalactic scientist. They study powerful energy negative energy, positive energy, etc.
Mechanical energy
When a person is climbing a ladder, the primary form of energy being used is potential energy from the person's muscles. As the person lifts themselves up, they are converting chemical energy stored in their muscles into mechanical energy to move upwards.
Kinetic energy measures the amount of energy a person has as they are in motion. In this instance, the person who weighs 600 Newtons has more energy.
The person jogging with her dog demonstrated kinetic energy, which is the energy of motion. As the person moves and the dog runs alongside, both have kinetic energy that comes from their movement.
The energy source a person is using when lifting a chair is chemical energy stored in their muscles. When a person contracts their muscles to lift an object, chemical energy from food they have eaten is converted into mechanical energy to perform the task.
Chemical energy is transferred into kinetic energy. When a person jogs, motion is produced.