Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Physics What are examples of elastic potential energy? Ben Davis November 27, What are examples of elastic potential energy? Which is the best example of potential energy? What are the 3 factors that affect potential energy? What is the relationship of mass weight and height to the PE of an object?
Why does potential energy increase with height? Does potential energy increase with heat? Does potential energy increase with distance? Can you cite situations which show the difference between potential and kinetic energy? What type of energy do humans need? What is energy and its types? What is energy and its unit? What is energy made up of? What is energy in simple words? What is elastic potential energy equal to?
What are the factors of elastic potential energy? Is elastic potential energy always positive? What is the difference between elastic potential energy and GPE? Is elastic potential energy dependent on mass?
Is elastic potential energy? Why elastic potential energy is positive? Another use of elastic potential energy in vehicles is in regenerative braking systems , where stored energy is used to give the vehicle a small power boost. Elastic deformation is a type of deformation that occurs when the energy used to change the shape of an object is equally output when pressures and forces are released.
For example, when you pull a spring, the spring will return to its original shape when released energy input equals energy output. This is what allows objects to have elastic potential energy. Plastic deformation is the type of deformation that occurs when the energy used to deform an object is not equal to energy output.
The object does not return to its original shape. For example, when two cars collide, much of their kinetic energy is transferred into new forms and is used to permanently change the shape of the cars. Plasticity means that when something is stretched, it stays stretched. When an object stays stretched or bent , that process is called plastic deformation.
When the material goes back to its original form, elastic deformation has occurred. All springs have some degree of plastic deformation. Some energy is always transferred to new forms, such as thermal energy. Plastic deformation causes the atoms in the spring to speed up, raising the temperature of the material similar to, but different from friction.
There is also a direct relation between gravitational potential energy and the height of an object. The higher that an object is elevated, the greater the gravitational potential energy.
These relationships are expressed by the following equation:. In the above equation, m represents the mass of the object, h represents the height of the object and g represents the gravitational field strength 9.
To determine the gravitational potential energy of an object, a zero height position must first be arbitrarily assigned. Typically, the ground is considered to be a position of zero height. But this is merely an arbitrarily assigned position that most people agree upon. Since many of our labs are done on tabletops, it is often customary to assign the tabletop to be the zero height position.
Again this is merely arbitrary. If the tabletop is the zero position, then the potential energy of an object is based upon its height relative to the tabletop. For example, a pendulum bob swinging to and from above the tabletop has a potential energy that can be measured based on its height above the tabletop.
By measuring the mass of the bob and the height of the bob above the tabletop, the potential energy of the bob can be determined. Since the gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy.
A tripling of the height will result in a tripling of the gravitational potential energy. Use this principle to determine the blanks in the following diagram. Knowing that the potential energy at the top of the tall platform is 50 J, what is the potential energy at the other positions shown on the stair steps and the incline? The second form of potential energy that we will discuss is elastic potential energy. Elastic potential energy is the energy stored in elastic materials as the result of their stretching or compressing.
Elastic potential energy can be stored in rubber bands, bungee chords, trampolines, springs, an arrow drawn into a bow, etc. The amount of elastic potential energy stored in such a device is related to the amount of stretch of the device - the more stretch, the more stored energy.
0コメント