As a slinky is compressed and released, each individual coil undergoes both stretching and compression motions. When you compress the slinky, the coils squish together and when you release it, the coils expand outward. This back-and-forth motion continues until the slinky comes to rest.
To create a standing wave on a slinky, you could hold one end of the slinky fixed while you move the other end up and down in a periodic motion. Adjust the frequency of your hand motion until you find a resonance frequency that creates a standing wave pattern in the slinky. The standing wave will have nodes (points of no motion) and antinodes (points of maximum motion) along its length.
Picture two people holding holding opposite ends of a long spring that they've stretched between them. If you're familiar with the toy called a "slinky", that's what I'm talking about. Now imagine that a small portion of the slinky in the middle is painted bright orange. If one person shakes his end of the slinky up and down, a wave will propagate toward the other person. If you were to observe the orange part of the slinky, you'd see that it moves up and down with the motion of the wave. This type of motion, where the orange section moves perpendicular to length of the slinky, is called transverse motion. Hence, this is a transverse wave. A longitudinal wave is different; it's a wave where the particle motion is parallel, rather than perpendicular, to the length. Imagine the same two people holding the same slinky with the bright orange section in the middle. Now imagine that one of the people quickly pushes his end of the slinky toward the other person, then pulls it back (as if he was imitating the motion of passing a basketball to his friend). The motion would cause the slinky to compress slightly near the first guy. The compression wave would then travel through the spring toward the person at the other end. If you were to observe the bright orange section in the middle, you'd see that the wave motion would cause it to move back and forth along the length parallel to the length of the slinky. That's a longitudinal wave.
The Slinky, like all objects, tends to resist change in its motion. Because of this inertia, if it were placed at the top of the stairs it would stay at rest without moving at all. At this point it has potential or stored energy. But once it is started down the stairs and gravity affects it, the potential energy is converted to the energy of motion or kinetic energy and the Slinky gracefully tumbles coil by coil down the stairs.The physical properties of the slinky determine how quickly it moves under the influence of gravity. Although its movement may look simple, from a scientific point of view the motion is quite complex. As the slinky moves down the steps, energy is transferred along its length in a longitudinal or compressional wave, which resembles a sound wave that travels through a substance by transferring a pulse of energy to the next molecule. How quickly the wave moves depends on the spring constant and the mass of the metal. Other factors, such as the length of the slinky, the diameter of the coils and the height of the step must be considered to completely understand why a slinky moves as it does.
A rigid motion transformation is one that preserves distances and angles between points in a geometric shape. Anything that involves changing the size or shape of the object, such as scaling or shearing, would not describe a rigid motion transformation.
A slinky would have difficulty going upstairs because its movement relies on gravity and a smooth, continuous surface to travel on. The steps of the stairs disrupt the slinky's ability to maintain its shape and movement, causing it to become tangled or stuck.
To create a standing wave on a slinky, you could hold one end of the slinky fixed while you move the other end up and down in a periodic motion. Adjust the frequency of your hand motion until you find a resonance frequency that creates a standing wave pattern in the slinky. The standing wave will have nodes (points of no motion) and antinodes (points of maximum motion) along its length.
Picture two people holding holding opposite ends of a long spring that they've stretched between them. If you're familiar with the toy called a "slinky", that's what I'm talking about. Now imagine that a small portion of the slinky in the middle is painted bright orange. If one person shakes his end of the slinky up and down, a wave will propagate toward the other person. If you were to observe the orange part of the slinky, you'd see that it moves up and down with the motion of the wave. This type of motion, where the orange section moves perpendicular to length of the slinky, is called transverse motion. Hence, this is a transverse wave. A longitudinal wave is different; it's a wave where the particle motion is parallel, rather than perpendicular, to the length. Imagine the same two people holding the same slinky with the bright orange section in the middle. Now imagine that one of the people quickly pushes his end of the slinky toward the other person, then pulls it back (as if he was imitating the motion of passing a basketball to his friend). The motion would cause the slinky to compress slightly near the first guy. The compression wave would then travel through the spring toward the person at the other end. If you were to observe the bright orange section in the middle, you'd see that the wave motion would cause it to move back and forth along the length parallel to the length of the slinky. That's a longitudinal wave.
A slinky represents a longitudinal wave, where the disturbance is parallel to the direction of energy transfer. When you compress or expand the coils of the slinky, the disturbance travels through the slinky as a longitudinal wave.
Inertia
The Slinky, like all objects, tends to resist change in its motion. Because of this inertia, if it were placed at the top of the stairs it would stay at rest without moving at all. At this point it has potential or stored energy. But once it is started down the stairs and gravity affects it, the potential energy is converted to the energy of motion or kinetic energy and the Slinky gracefully tumbles coil by coil down the stairs.The physical properties of the slinky determine how quickly it moves under the influence of gravity. Although its movement may look simple, from a scientific point of view the motion is quite complex. As the slinky moves down the steps, energy is transferred along its length in a longitudinal or compressional wave, which resembles a sound wave that travels through a substance by transferring a pulse of energy to the next molecule. How quickly the wave moves depends on the spring constant and the mass of the metal. Other factors, such as the length of the slinky, the diameter of the coils and the height of the step must be considered to completely understand why a slinky moves as it does.
The Slinky, like all objects, tends to resist change in its motion. Because of this inertia, if it were placed at the top of the stairs it would stay at rest without moving at all. At this point it has potential or stored energy. But once it is started down the stairs and gravity affects it, the potential energy is converted to the energy of motion or kinetic energy and the Slinky gracefully tumbles coil by coil down the stairs.The physical properties of the slinky determine how quickly it moves under the influence of gravity. Although its movement may look simple, from a scientific point of view the motion is quite complex. As the slinky moves down the steps, energy is transferred along its length in a longitudinal or compressional wave, which resembles a sound wave that travels through a substance by transferring a pulse of energy to the next molecule. How quickly the wave moves depends on the spring constant and the mass of the metal. Other factors, such as the length of the slinky, the diameter of the coils and the height of the step must be considered to completely understand why a slinky moves as it does.
Johann Kepler.
A rigid motion transformation is one that preserves distances and angles between points in a geometric shape. Anything that involves changing the size or shape of the object, such as scaling or shearing, would not describe a rigid motion transformation.
A slinky would have difficulty going upstairs because its movement relies on gravity and a smooth, continuous surface to travel on. The steps of the stairs disrupt the slinky's ability to maintain its shape and movement, causing it to become tangled or stuck.
a person that is healthy takes care of theirself
the point of view that you describe motion from is whatever you choose it to be. generally we describe motion relative to earth. for example you could say that a car is moving 60mph north, and it would be assumed to be moving relative to earth; but if someone is riding their bike 10mph north, then the car is moving 50mph north relative to the bike. you see, you could describe the car moving compared to a star in a distant galaxy if you wanted, but that would be useless information so you should choose something relative to the problem.
why would you want to