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Conservation of momentum and energy (an investigation)
Conservation of momentum and energy (an investigation)
Conservation of momentum and energy (an investigation)
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Newton’s Cradle What is it? Newton's cradle is a series of five balls hung on thin string. One (or 2) ball(s) is pulled back and the energy travels through the balls and the one (or 2) depending on how many were pulled back go up. How does it work? When the first ball collides with the second, the first ball stops, but its momentum isn't lost,it is transferred to the second ball, then the third, then the fourth, until it reaches the very last ball. You can see this conservation of momentum as the last ball swings into the air with nearly the same momentum as the first ball, so if two balls are lifted into the air on one end of the cradle and released, then two balls on the other side will swing in response. How does this relate to
The cradle motion soothes infants. Parents can rock the cradle or allow the baby’s natural motion to move the cradle.
Wasser (2016) stated, “The acceleration phase involves increasing angular velocities of the body segments (pelvis, trunk, shoulders) and crosses to prepare for ball release.” The trunk follows a progressive pattern of flexion throughout the throwing motion, thus, influencing the power behind the ball’s trajectory. The turning of a player’s shoulders to align with their hips is what creates the momentum for the ball’s speed and direction upon release. At the beginning of the acceleration phase, as shown in the lacrosse shot analysis, the trunk exits the preparatory stage and enters a phase of rotation. According to Plummer and Oliver (2015), this phase is vastly important because the alterations in action and purpose of involved muscles could be
In the short story Cradle Hold by David Klass, a very young boy named Duke possesses many feminine qualities, such as preferring dolls over guns or books over the outdoors. Duke’s father Harry is very uncomfortable about this. He tries everything he can think of to change his son, But nothing works. Eventually Duke gets a girlfriend. Harry is very happy but far from pleased. One day Duke decides to try out for wrestling to make his father happy. Duke makes the team as an substitute. Harry travels to all of Duke's games even though he doesn't play most of the time. Duke makes his way up to the best wrestler in his school. He went the whole season undefeated. He was at the championships and made it to the finals. He was up against another undefeated wrestler. In the middle of his match Harry makes some unexpected decisions without thinking how they will affect Duke.
Cheikh Anta Diop, wrote the “Two Cradle Theory” which was originally published in French in 1908. He believed that African people formed their society based on Egyptian beliefs and not European customs. Diop then goes on to show that there is a lack of evidence, literary, mythological, historical or otherwise to show that the ‘northern cradle’ has ever had a matriarch. Diop saw that the “northern cradle” possessed the material conditions favorable to nomadic life, or at least a highly mobile way of life (Peter 9). In 1976 Third World Press of Chicago, Illinois published the English translation of, “The Cultural Unity of Black Africa” which describes Dr. Diop’s Theory in full detail. Professor Jacob Carruthers of Northeastern University wrote
We ran into Newtons First Law, which claims that an object resists change in motion, as the marble rolled down the floor it didn’t stop until it was acted against by friction. As we moved on, Newtons Second Law came into play when we were creating our lever as we need a ball that would roll down with enough acceleration that it could knock down the objects. Newton’s second law claims, that F=MA. So, we choose a golf ball since it would have more mass than a rubber ball, but it would have less acceleration when the lever was started. This way, it would knock the upcoming objects. Newtons Third Law claims that every action yields an equal and opposite reaction. This is proven in our Rube Goldberg Machine when the small car was rolling down the tracks as the wheels pushes against the track making the track move backwards. The track provides an equal and opposite direction by pushing the wheels forward.
When looking at a collision between a baseball bat and ball, three things always apply:
When one throws a baseball properly they are using there entire body to generate a large force to propel the baseball. A general throwing position starts with a person rotated 90 degrees from there target with there throwing arm 180 degrees from the target and parallel to the ground. The person then starts rotating their body back towards their target while there throwing arm starts bending until it is almost 90 degrees to their elbow, while the arm is bending at the elbow the throwing arm is rotating such that the arm rotates back almost 180 degrees from the target. Meanwhile the person is leaping forward with the leg that was initially pointed at the target while there other leg is planted into the ground. The person is bending at their waist and the other arm is rotating into their body. Around the point where the driving leg strikes the ground the throwing arm is rotating foreword at a tremendous angular speed and the person lets go of the ball. At the point where the ball is let go the persons body pulls the planted leg forward and the throwing arm finishes its motion towards the driving leg.
Prompt: Define Newton’s Third Law, give three effects of it, and create an experiment designed to explore one aspect of it.
My book is called The Cradle by Arthur C. Clarke. The setting of this book takes place in sunny West Keys in Florida. The main characters in this book are Carol Dawson who is a Miami photojournalist. She takes pictures and writes stories about the pictures and sells them to the local news and newspaper. Nick Williams is a woman-hating Ivy League drop out who captains a boat for his own scuba diving company. Troy Jefferson is Nick’s trusty crewman who aids Nick in the epic story. This also is Non-Fiction.
Newton’s 2nd Law of Motion states that acceleration is directly proportional to net force when mass is constant. This experiment dealing with variable forces has as its objective the verification of this law. In this experiment this law is tested for verification in straight forward way. Through the use of a Force Sensor and an Accelerometer, data collection of observations and measurements that a force exerts on a small cart along with the cart’s accelerations are to be determined. The sensors’ measurements will be employed to give meaningful relationships between the net force on the cart, its mass, and its acceleration under these conditions. The resultant measurements revealed will verify and determine the force and acceleration relationship as stated by Newton.
1.) Elastic collision: A strobe photo will be used that shows a large glider smashing into a smaller glider which is initially at rest. This will cause the smaller glider to move and the large glider will continue to move also.
The Law of Conservation of Momentum state that the total linear momentum of an isolated system remains constant. This means that the momentum of two bodies before collision will be equal to the momentum of the two bodies after they have collided and exploded apart. This will only occur if the collision is in a closed system (no other forces act on the objects) (M.Mann, 2013). An example of this is Newton’s Cradle. This is a row of five metal balls suspended by wire on a frame. When the ball at the end (ball one) is pulled and then released to collide with the ball next to it (ball two), the momentum of ball one will not be lost but will be transferred from the third ball to the fourth until it reaches the last ball which will rise up to a height almost identical to the height at which the first ball rose. The fifth ball will then fall back down and collide with the ...
Isaac Newton was a key figure in the Scientific Revolution because his discoveries changed the world of science and belief systems in many ways. His work made such an impact because he was able to explain why and how his hypotheses were proven, which ushered a new way of thinking. His work was not just simply hypothesized (claimed) like past philosophers:
method can be produced and a graph of the function can be made. From the graph,
...the more energy is lost and the less the ball bounces back. The less denting that occurs, the more energy is kept and the higher the ball bounces back.