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What kind of energy is acquired by a stretched rubber band?
Light energy
Kinetic energy
Potential energy
Thermal energy
Potential energy
A stretched rubber band possesses elastic potential energy due to the displacement of its molecules from their equilibrium positions. This energy is stored as a result of the work done to deform the object and is released when the stretching force is removed.
A stretched rubber band possesses elastic potential energy due to the displacement of its molecules from their equilibrium positions. This energy is stored as a result of the work done to deform the object and is released when the stretching force is removed.
Think of it like pulling back a slingshot; the further you pull the rubber, the more 'potential' it has to snap back and launch an object, proving that it is holding energy in a latent state.
U=21тАЛkx2 тАФ Formula for elastic potential energy, where k is the stiffness and x is displacement.
When a force is applied to stretch a rubber band, work is performed against the intermolecular forces within the material. This work is converted into elastic potential energy, which is defined by the formula U=21тАЛkx2, where k is the spring constant of the band and x is the extension. This energy remains stored until the band is allowed to return to its original shape.
Potential energy is the energy held by an object because of its position or configuration.
Elastic potential energy specifically applies to objects that can be deformed and return to their original shape.
A rubber band, when stretched, represents mechanical potential energy specifically termed elastic potential energy.
Slingshots and catapults
Archery bows
Elastic exercise bands
Kinetic energy is energy of motion, which the rubber band would possess only while returning to its original shape.
Thermal energy is typically related to heat, while light energy is electromagnetic radiation.
C is correct тАФ A stretched rubber band possesses elastic potential energy, which is a form of potential energy stored due to a change in shape.
Remember: Potential energy is stored energy (position/shape), while kinetic energy is energy of motion. If it's standing still but under tension or elevated, it's almost always potential.
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