The main purpose of an energy-harvesting backpack is to provide power in situations where...

A) kinetic energy is unavailable.

C) movement needs to be restricted.

D) the user needs to generate heat.

When the energy captured by an energy-harvesting backpack is stored in its battery for future use, the energy is primarily in what form?

D) Gravitational potential energy

A) It is stored as potential energy within the person's muscles for later use.

B) It is converted into new matter according to the principles of physics.

C) It dissipates into the environment, primarily in the form of heat.

D) It is permanently destroyed and ceases to exist within the system.

A) Converting potential energy into kinetic energy

B) Transforming kinetic energy from motion into stored potential energy

C) Creating new energy from mechanical movement

D) Changing thermal energy directly into electrical energy