This photo shows a sparkling water can that is in a state of equilibrium. Equilibrium refers to a state of balance. There are three types of equilibrium: There is stable, neutral and unstable equilibrium. An object is considered to be in a state of equilibrium when two opposing forces balance each other on the object. In my photo, the can is displaying unstable equilibrium. If the state of the can is interrupted by an outside force, the can will certainly fall down. I managed to have the can achieve unstable equilibrium by having it half-empty; this allows for it to have a center of mass that is equal for that specific moment.

This photo displays a pencil in a beaker filled with water that also displays the concept of light refraction. Light refraction occurs when the light path bends when it travels from one medium into a second medium. In my photo, the light path is traveling from the water to the glass of the beaker to the air. Light can not travel as quickly in water as it does in the air. So, the light starts to bend around the pencil; therefore, causing the pencil to have a distorted and bent appearance. The positioning of the pencil also has an impact on the way the pencil looks. Placing the pencil on a steeper angle, the distortion is more visible for the viewer.

This photo is of a plate filled with water on top of a speaker, which showcases the concept of fluid dynamics, specifically dispersion. Dispersion (with water waves in this case), refers to frequency dispersion, which means that waves of different wavelengths travel at different speeds. In the context of this photo, water waves are occurring at the surface of the water, which then settle back in place due to gravity. My photo displays this concept as I managed to create water waves due to the speaker that was playing a song with a strong bass. There was difficulty in managing to demonstrate the concept, because I could not find the right plate to accurately showcase dispersion. However, I chose a plate that had a smaller area than the others, so the water could be the main focus.

This photo is of Newton's Cradle that demonstrates the principle of the conservation of momentum, as well as Newton's Third Law of Motion. The principle of conservation of momentum states that when two objects collide, the total momentum of the objects before the collision is equal to the total momentum of the objects after the collision. My photo demonstrates this principle because both balls are displayed flying off from each other in the third picture. The potential energy is seen in the first photo, as both balls are moving towards each other. Then in the second photo, the moment of impact is shown a second after, as they seemingly start to move away from each other. Finally, the third photo demonstrates how the momentum from the first photo, is equal to it. This concept is also in relation with Newton's third law of motion. The third law states that there is an equal and opposite reaction when the balls collide. The forces on the balls are the same as they collide, causing the balls to move opposite ways and then to collide again and again. The two balls act interaction force pairs as they collide and continue to bounce off of each other. Newton's cradle also shows how energy is not lost or destroyed, as the two balls continue to collide as there is no outside force in action.