Looking for a Gas Gas is everywhere. There is something called the atmosphere. That’s a big layer of gas that surrounds the Earth. Gases are random groups of atoms. In solids‚ atoms and molecules are compact and close together. Liquids have atoms that are spread out a little more. Gases are really spread out and the atoms and molecules are full of energy. They are bouncing around constantly. Gases can fill a container of any size or shape. It doesn’t even matter how big the container is. The
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Free Fall Methods Investigation Aim I am going to use three different methods in which I will find the value of gravity (g). Then I am going to compare all three methods to see which is the best. The three experiments will be - Pendulum - Spring - Electronic timer Background Research Free fall Is motion with no acceleration other than that provided by gravity‚ and no deceleration other than that caused by the aerodynamic drag of the object (hence the term also applies for moving
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Hypothesis: For an increase in a normal force‚ there will be a corresponding increase in friction. Introduction: Force is usually connected with a push or pull exerted on an object. In this experiment‚ I am using a contact force‚ a force that exists from physical contact between two things. I am pulling the spring scale‚ which measure force in Newtons (kg x m/s2)‚ and then the block is moving. Different masses (kg)‚ or the measure of the resistance of an object to changes in its motion due
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Throwing a football When the football travels through the air for a long pass it always follows a curved path because the force of gravity influences the movement of the ball in the vertical direction. As the ball travels up‚ gravity slows it down until it stops briefly at its peak height; the ball then comes down‚ and gravity accelerates it until it hits the ground. Projectile motion is the path of any object that is launched or thrown and has an arched course (howstuffworks) For the football
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1.0 Abstract The purpose of this experiment is to analyze the efficiency and technique of the students over arm volleyball serve after the use of biomechanical principles has been applied. In order to complete the experiment the student performed a pre and post test which was evaluated by the program Dartfish and a serving indicator test to assess the changes and improvements of the students technique and performance of the over arm serve. It was found that by applying the three biomechanical principles
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Christian Hernandez January 25‚ 2010 Physics Mr. Savage The motion of an airplane or helicopter through the air can be explained and distinguished by physical principals discovered over three centuries ago by Sir Isaac Newton‚ who worked in many areas of mathematics and physics. Throughout recent science history‚ three of the most important theories proven were all evaluated by Isaac Newton. He developed the theories of gravitation in 1666‚ when he was only 23 years old. Some twenty years
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Mousetrap Car Final Paper Design Description Our car had four CD wheels that were attached to the axle of the car with CD spacers. We put balloons over the wheels for traction. The body of the car was two pieces of wood that was attached by the mousetrap car sitting on top of both of the pieces of wood. The lever arm is attached to the mousetrap with a piece of string to turn the axle; therefore‚ turning the wheels. Then the body of the car is held in place by four CD spacers on the outside of
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POTENTIAL ENERGY DIAGRAM In physics the terms of mechanical energy usually refers to Potential energy (U) and Kinetic Energy (K). In the absence of non-conservative‚ or dissipative forces‚ these energies obey the law of conservation of energy‚ or ΔU + ΔK = 0. That is‚ when a system is only acting under the influence of conservative forces its total energy content never changes‚ the energy just converts between forms. At any point in the cycle‚ the total energy is constant‚ U + K = Umax = Kmax
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1. Alice throws the ball to the +X direction with an initial velocity 10m/s. Time elapsed during the motion is 5s‚ calculate the height that object is thrown and Vy component of the velocity after it hits the ground. 2. John kicks the ball and ball does projectile motion with an angle of 53º to horizontal. Its initial velocity is 10 m/s‚ find the maximum height it can reach‚ horizontal displacement and total time required for this motion. (sin53º=0‚ 8 and cos53º=0‚ 6) 3. The boy drops
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[pic] The product of average force and the time it is exerted is called the impulse of force. From Newton’s second law [pic] the impulse of force can be extracted and found to be equal to the change in momentum of an object provided the mass is constant: |[pic] |Calculation | The main utility of the concept is in the study of the average impact force during collisions. For collisions‚ the mass and change in velocity are often
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