A bullet fired from a gun is an example of mechanical kinetic energy, while the gunpowder before firing is an example of chemical potential energy. Kinetic energy is the energy of a particle or wave in motion, while potential energy is the potential of this particle or wave to move.Continue Reading
Kinetic energy is possessed by any particle or wave moving relative to a certain reference frame. The faster a body is moving, the more kinetic energy it possesses. The energy of a body is directly proportional to the square of its velocity in each direction.
Potential energy is possessed by virtue of a body’s position or state. Potential energy is also relative, depending on what it is measured in reference to. Gravitational potential energy is directly proportional to the height of the body relative to a surface datum. Measuring the height of a ball relative to the ground level of a tall building gives one value of potential energy, while measuring the height of a ball relative to the top of this building gives another value. General conventions use positive values of gravitational potential energy for bodies above the datum surface and negative values for those below the datum surface.
Other forms of potential energy include the electrical potential stored in a battery and the mechanical potential stored in a spring.Learn more about Physics
The most common real-life example of an ellipse is the orbiting path of a planet. Most orbits are not circular in nature, and they are often most similar to an oval in shape.Full Answer >
Some examples of magnetic energy are a magnetic resonance imaging, or MRI, machine, a compass, the Earth's magnetic field and the starter in a car. Maxwell's equations relates magnetic energy to electric energy. These equations describe how magnetic and electric fields are generated and altered by each other.Full Answer >
Inelastic collisions are collisions where the kinetic energy is not conserved during the incident, but the total energy and momentum is conserved. For example, when a car collides with an immovable object, it is stopped, and its kinetic energy is lost.Full Answer >
An example of personification in "The Legend of Sleepy Hollow" occurs near the beginning when the narrator describes the "angry echoes" that occur after he shoots a gun. This comparison is personification because the narrator gives the non-human echoes the human characteristic of anger.Full Answer >