Objects can have kinetic energy, potential energy, or both. Energy can be in the form of motion. Energy can also be stored by objects in various ways, including position, chemical bonds, or physical state. Which statement is true? 1. A stretched rubber band stores no energy. 2. An object’s mass has no effect on its potential energy. 3. Potential energy is converted to kinetic energy as a stationary object begins to move 4. Kinetic energy is converted to potential energy as a stationary object begins to move. Show
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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics4th EditionRandall D. Knight 3,508 solutions Kinetic energy is energy possessed by a body by virtue of its movement. Potential energy is the energy possessed by a body by virtue of its position or state. While kinetic energy of an object is relative to the state of other objects in its environment, potential energy is completely independent of its environment. Hence the acceleration of an object is not evident in the movement of one object, where other objects in the same environment are also in motion. For example, a bullet whizzing past a person who is standing possesses kinetic energy, but the bullet has no kinetic energy with respect to a train moving alongside. Comparison chartKinetic Energy versus Potential Energy comparison chart
Interconversion of Kinetic and Potential EnergyThe law of conservation of energy states that energy cannot be destroyed but can only be transformed from one form into another. Take a classic example of a simple pendulum. As the pendulum swings the suspended body moves higher and due to its position potential energy increases and reaches a maximum at the top. As the pendulum begins its downward swing, the stored potential energy is converted into kinetic energy. When a spring is stretched to one side, it exerts a force to the other side so it can come back to its original state. This force is called restoring force and acts to bring objects and systems to their low energy level position. The force required to stretch the spring is stored in the metal as potential energy. When the spring is released, the stored potential energy is converted into kinetic energy by the restoring force. When any mass is lifted, the gravitational force of the earth (and the restoring force in this case) acts to bring it back down. The energy needed to lift up the mass is stored as potential energy due to its position. As the mass is dropped, stored potential energy is converted to kinetic energy. EtymologyThe word "kinetic" is derived from the Greek word kinesis, which means "motion." The terms "kinetic energy" and "work", as understood and used today, originated in the 19th century. In particular, "kinetic energy" is believed to have been coined by William Thomson (Lord Kelvin) around 1850. The term "potential energy" was coined by William Rankine, a Scottish physicist and engineer who contibuted to a variety of sciences, including thermodynamics. Types of Kinetic Energy and Potential EnergyKinetic energy can be classified into two types, depending on the type of objects:
Rigid non rotating bodies have rectilinear motion. Thus translational kinetic energy is kinetic energy possessed by an object moving in a straight line. Kinetic energy of an object is related to its momentum (product of mass and velocity, p= mv where m is mass and v is velocity). Kinetic energy is related to momentum through the relation E = p^2 / 2m and hence translational kinetic energy is calculated as E = ½ mv^2. Rigid bodies which rotate along their center of mass possess rotational kinetic energy. Rotational kinetic energy of a rotating body is calculated as the total kinetic energy of its different moving parts. Bodies at rest also have kinetic energy. The atoms and molecules in it are in constant motion. The kinetic energy of such a body is the measure of its temperature. Potential energy is classified depending on the applicable restoring force.
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you read this far, you should follow us: "Kinetic and Potential Energy." Diffen.com. Diffen LLC, n.d. Web. 14 Dec 2022. < > What statements describe kinetic and potential energy?Potential energy can be described as the energy stored in an object that is at rest, and that could be used to accomplish some task. Kinetic energy is the energy of an object in motion.
What are 5 kinetic and potential energy examples?What Are Examples of Potential and Kinetic Energy?. 1) Planets. The movement of planets around the sun and other stars in the galaxy is kinetic energy at work. ... . 2) Rubber Bands. Rubber bands can be classified as both potential and kinetic energy, depending on the state of the band. ... . 3) Rivers. ... . 4) Specific Variations.. Which of the following statements describe kinetic energy?Answer: Kinetic enery is the energy that exists as movement of the particles of a substance. This energy would be greater in faster-moving particles as compared to slower-moving particles.
What is potential and kinetic energy quizlet?What is the difference between kinetic and potential energy? Kinetic energy is the energy of motion, and potential energy is an object's energy due to its position or shape.
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