Elastic energy is the potential energy stored in a material or physical system as the volume or shape is distorted. When objects are stretched or compressed, elastic energy is stored, according to the Physics Classroom.Know More
Reversibility is the key to how elastic energy is stored and released. When force is applied to an elastic material, energy is transferred into the material, and then by yielding that energy to the surroundings, the object can return to its original shape. All materials have a certain point at which the force is too great, causing the material to break or irreversibly altering its internal structure. Elastic energy is potential energy and is stored by changing the inter-atomic distances between nuclei.
Thermal energy is the randomized distribution of kinetic energy within a material, which can occur from twisting, bending or by applying other types of force that distorts the material's shape. Common devices that use elastic energy to work are rubber bands, bungee cords, trampolines, springs, and bows and arrows.
Springs are a special instance when compression is used to create and store elastic potential energy. The more compressed a spring is, the more force the spring exerts when it returns to original form. When a spring is not compressed or stretched, there is no elastic energy stored, and the spring is said to be at its equilibrium position. An object possesses elastic energy when it is at any position other than that of its equilibrium.Learn more in Motion & Mechanics
Water displacement is a particular case of fluid displacement, which is simply the principle that any object placed in a fluid causes that fluid to no longer occupy that volume of space. The fluid must go somewhere, however, and so with liquids in containers, this causes their overall height to rise. Gases are also fluids subject to displacement, and they both fill space and are compressible, so an object introduced to a sealed container full of a gas simply decreases the volume of the gas and increases its pressure.Full Answer >
Objects comprised of material that is denser than water tend to sink; objects with a lighter density tend to float. Since air is lighter than water, hollow objects can float if their total density is less than water. Preventing objects from absorbing water is important.Full Answer >
Two factors affect how high a ball bounces: the stiffness of the ball's material and the hardness of the surface the ball hits. The stiffer the ball and the harder the surface, the higher the ball bounces.Full Answer >
The ability of a material to resist deformation reflects either its modulus of rigidity under shearing or twisting stress or its modulus of elasticity under stretching stress. A modulus is the absolute value of a ratio expressing a physical attribute.Full Answer >