energy, in physics, the capacity for doing work . It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another. ... For example, any given body has kinetic energy if it is in motion.
What is the best definition of energy quizlet?
D) the capacity to do work. Which is the best definition of energy? A) the conversion of one form of chemical energy to another form of chemical energy .
What is energy in simple words?
energy. [ ĕn′ər-jē ] The capacity or power to do work , such as the capacity to move an object (of a given mass) by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another.
What is the full meaning of energy?
energy Add to list Share. ... Energy is from Greek energeia “activity, operation,” from energos “active, effective,” from en “in” plus ergon “work.” Specialized senses of the word energy include the power that comes from sources such as heat or electricity, and the ability of sources such as heat or light to do work.
How is energy defined in science?
Energy is defined as the “ability to do work, which is the ability to exert a force causing displacement of an object .” Despite this confusing definition, its meaning is very simple: energy is just the force that causes things to move. Energy is divided into two types: potential and kinetic.
What is energy in your own words?
In general, the word energy refers to a concept that can be paraphrased as “ the potential for causing changes” , and therefore one can say that energy is the cause of any change. Energy is a conserved quantity, meaning that it cannot be created or destroyed, but only converted from one form into another. ...
How do you describe energy?
Energy is defined as the ability to do work . Energy can be found in many things and can take different forms. For example, kinetic energy is the energy of motion, and potential energy is energy due to an object’s position or structure. Energy is never lost, but it can be converted from one form to another.
What best describes the energy of motion?
Kinetic energy is the energy of motion.
When work is done on an object and it accelerates, it increases the kinetic energy of an object. The most important factors that determine kinetic energy is the motion (measured as velocity) and the mass of the object in question.
What is the correct definition of power?
1 : possession of control, authority, or influence over others . 2 : a nation that has influence among other nations a foreign power. 3 : the ability to act or produce an effect It’s in your power to change things. 4 : the right to do something the president’s powers. 5 : physical might : strength The wind grew in power ...
Which of the following is the best definition for power?
Power is defined as the ability to act or have influence over others . An example of power is the strength needed to run five miles. An example of power is the authority a local government has to collect taxes. Power means to supply with energy or force.
What is an energetic person called?
An energetic and unpredictable person. live wire . fireball . go-getter . whizz-kid .
What is energy made up of?
Kinetic energy is motion; it is the motion of waves, electrons , atoms, molecules, substances, and objects. Electrical energy is the movement of electrons. Everything is made of tiny particles called atoms. Atoms are made of even smaller particles called electrons, protons, and neutrons.
What are the 5 sources of energy?
- Solar Energy. The primary source of energy is the sun. ...
- Wind Energy. Wind power is becoming more and more common. ...
- Geothermal Energy. Source: Canva. ...
- Hydrogen Energy. ...
- Tidal Energy. ...
- Wave Energy. ...
- Hydroelectric Energy. ...
- Biomass Energy.
What is energy give example?
Energy exists in many different forms. Examples of these are: light energy , heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy and so on. ... Examples include nuclear energy, chemical energy, etc.
What is energy Science example?
Energy is the ability to do work. Examples of energy include electrical, nuclear, and chemical energy . The concept of energy is key to science and engineering.
Why do we need energy?
Energy fuels your body’s internal functions, repairs, builds and maintains cells and body tissues , and supports the external activities that enable you to interact with the physical world. Water, your body’s most important nutrient, helps facilitate the chemical reactions that produce energy from food.
