energy level
The term "energy level" is widely used in various scientific fields to describe discrete values of energy, and it is also used colloquially to describe a person's or animal's activity capacity.
Definition
C1Physics
(technical, academic)A specific, discrete value of energy that a quantum mechanical system, such as an electron in an atom, can occupy.
Example
- Electrons move between energy levels by absorbing or emitting photons.
- The energy level diagram helps to visualize the different states an electron can occupy.
C1Chemistry
(technical, academic)A fixed amount of energy associated with an electron in an atom or molecule, often represented in an orbital diagram.
Example
- The electron transitioned from a higher to a lower energy level, releasing energy in the form of light.
- Understanding energy levels is crucial for explaining chemical bonding and reactions.
B2Biology
(technical, academic)A measure of the available energy within an organism or cell, influenced by factors like nutrition and metabolism.
Example
- A high energy level in cells indicates efficient metabolism and good health.
- The energy level of the organism decreased due to lack of proper nutrition.
B2Psychology
(general, informal)A person's state of vitality and enthusiasm, often influenced by sleep, exercise, and emotional well-being.
Example
- After a good night's sleep, her energy level was much higher.
- Stress can significantly affect your energy level throughout the day.
Similar
Terms that have similar or relatively close meanings to "energy level":
power levelvibrational energywater levelzero-point energyflight levelthermal energyground levelair levelelectric energydraw level