In physics, energy is a property of objects which can be transferred to other objects or converted into different forms. The "ability of a system to perform work" is a common description, but it is difficult to give one single comprehensive definition of energy because of its many forms. For instance, in SI units, energy is measured in joules, and one joule is defined "mechanically", being the energy transferred to an object by the mechanical work of moving it a distance of 1 metre against a force of 1 newton.[note 1] However, there are many other definitions of energy, depending on the context, such as thermal energy, radiant energy, electromagnetic, nuclear, etc., where definitions are derived that are the most convenient.

Common energy forms include the kinetic energy of a moving object, the potential energy stored by an object's position in a force field (gravitational, electric or magnetic), the elastic energy stored by stretching solid objects, the chemical energy released when a fuel burns, the radiant energy carried by light, and the thermal energy due to an object's temperature. All of the many forms of energy are convertible to other kinds of energy. In Newtonian physics, there is a universal law of conservation of energy which says that energy can be neither created nor be destroyed; however, it can change from one form to another.

Based on the article and the following list of answers, write a list of questions.

1. the ability of a system to do work
2. a property of objects which can be transferred or converted
3. yes
4. thermal, radiant, nuclear, electromagnetic
5. kinetic, potential, elastic, chemical, therma;, radiant
6. yes
7. no
8. no
9. yes
10. in joules
11. a measure of energy transfer
12. no
13. it depends on the context
14. energy in light
15. the energy stored by an object in a force field
16. yes
17. three
18. gravitational, electric, magnetic
19. chemical energy
20. thermal
1. What is a common definition of energy?
2. How is it defined in physics?
3. Are there many forms of energy?
4. what are some kinds of energy?
5. What are some comon kinds of energy?
6. can one form be transformed into another?
7. Can it be made?
8. can it be destroyed?
9. are there different ways of measuring it?
10. what is one way?
11. what is a joule?
12. Is there a single way of defining it?
13. How are different meanings contrived?
14. what is radiant energy?
15. What is potential energy?
16. Are there more than one kind of force field?
17. how many?
18. what are they?
19. what comes from burning?
20. What kind of energy comes from a thing's temperature?