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# The Physics of Dance

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## Physics Peeps

on 14 January 2014

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#### Transcript of The Physics of Dance

Leaps
Leaping, or jumping, when dealing with dance, is a movement in which the dancer launches into the air.
To begin, the dancer stands upright with no initial velocity and accelerates upwards by pushing off the ground, which defies the gravitational pull of the Earth.
When the person has reached their highest point they will accelerate with a decreasing velocity downwards, due to the effects of gravity.
To successfully create moves such as a leap, keeping control of one's inner central gravity is essential.
There are specific aspects that can create a well performed leap. Speed and force can determine the height, mass and strength of your leaps/jumps. More speed and force given into the jump-start of a leap or jump can present an overall powerful, yet graceful outcome.
Fouetté
Balance
Turns
The Physics of Dance

In ballet, there are many types of turns a dancer can do. One of the most difficult types is a Fouetté.
One complete turn is about 0.8 seconds.
Dance is a form of performing arts that involves a series of rhythmic movements that follows a sequence of steps.
Dance includes elements such as: balance, rotational movements, jumps, leaps, and much more. The amount of force plays an immensely important role in the movement of dance.
What is Dance?

Balance plays a big role when dealing with the movement of dance. Being said, gravity is the major component when dealing with balance.
Balance is one main aspect throughout dance. The Earth's gravity provides a challenge for the individual doing the movement or position. This downward force is what makes balancing a difficult positional element.
Therefore, the center force of gravity in an individual's body provides the support for balancing because of its vertical force.
Thus, when the dancer does not center his/her positioning, the tilted gravity line makes it challenging to balance.
Newton's first and second laws are dealt with in the position/movement.
A turn in the terms of dance is when a person spins around fast. (fouettes, pique turns, chasse turns, etc.)
For the dancer to begin to turn they must have rotational inertia. The greater the mass, the greater the inertia.
The way the dancer holds their body can also affect their turn. If the dancer has their arms close to their bodies, then their rotational movement will accelerate faster because the resistance decreases. The more spread apart the dancer's arms are, the slower they will move.
By: Jocelyn Mendoza, Lindsay McElroy, Ifrah Qureshi
Fouetté (cont'd)
The dancer starts to turn by bringing their arms together giving them; a small radius, a small rotational inertia, and a large angular velocity.
Then the dancer slows down by extending their arms and leg which gives them a large radius, a large rotational Inertia, and a small angular velocity.
When the dancer turns again they bring their arms and legs together which gives them a small radius, a small rotational inertia, and a large angular velocity.
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