Physics G Unit 6 – Momentum Internet Lab – Momentum and Collisions Name: Date: Period: Website: http://phet.colorado.edu/ Play with the Sims Physics Motion Collision Lab Introduction: When objects move‚ they have momentum. Momentum‚ p‚ is the product of an object’s mass (kg) and its velocity (m/s). The unit for momentum‚ p‚ is kg·m/s. During a collision objects transfer momentum to each other‚ resulting in different motions than before the collision. In this activity you will study
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conservation of momentum in collisions using two bodies. We also calculated the amount of kinetic energy in elastic and inelastic collisions before and after the collision. Introduction: When bodies collide with each other‚ the total momentum p = mv‚ is always conserved regardless of the type of collision provided no external forces are present. There are two types of collisions. In an elastic collision‚ both the kinetic energy and the momentum are conserved. An inelastic collision is one in which
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be just enough to make the trolleys adhere after the collision? The amount of Velcro used should be enough to keep the trolleys together after the collision but not so much that it will absorb the impact of the collision and reduce the final momentum resulting in an unusable attempt. 3. Discuss any differences in total momentum before and after the collision There were small amounts of differences in momentum before and after the collision‚ this can be related back to random and systematic errors
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What is momentum? Momentum of a body is defined as the mass multiplied by the velocity of this object. Momentum= m x v Momentum and Newton’s second law of motion: The resultant force is proportional to the change in momentum per a second. We know that force = mass x acceleration. So F (mv-mu)/t F m (v-u)/t = ma so F=kma Momentum is a vector quantity: Momentum has a direction as well as a magnitude Momentum and Newton’s first law of motion: An object remains at
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The law of conservation of momentum states that momentum can neither be created nor destroyed; the total momentum of any closed system must remain the same. Momentum is mass times velocity. Thus‚ a ten pound object moving at 5 meters per second has the same momentum as a 2 pound object moving at 25 meters per second (for example). In order to alter the motion of one object‚ you have to transfer the momentum to another object. Now‚ this principle is not intuitively obvious‚ because we are constantly
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1) Introduction This Lab is about conservation of momentum. It is to investigate the difference of momentum before and after collisions. Using the photo gates record the velocity of each cart‚ comparing momentum and kinetic energy to find the law. The experimental apparatus are two red carts in approximately same weight and a gold cart in lower weight than the red ones‚ a stable air track (blow a constant stream of air out through numerous tiny holes) with low friction and two photo gates. 2) Project
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iodide is formed. 3.) Collision Theory Illustration 1.2 -The following hypothetical chemical reaction illustrates the collision of the molecules of two gases‚ A2 and B2‚ to form another compound of AB. - Furthermore‚ the colliding species must be oriented in a manner favorable to the necessary rearrangement of atoms and electrons. Thus‚ according to the collision theory‚ the rate at which a chemical reaction proceeds is equal to the frequency of effective collisions. Because atomic or molecular
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Chapter 9 IMPULSE AND MOMENTUM COLLISION PROBLEMS A tennis ball and racket collision: a microscopic view COLLISION: FORCE VS TIME GRAPH A large force exerted during a small interval of time is called an impulsive force. LINEAR MOMENTUM The product of the particle’s mass and velocity is called the linear momentum p = mv As a vector quantity‚ the momentum can be represented in terms of its components: px= mvx py= mvy ALTERNATIVE FORM OF NEWTON’S SECOND LAW F = ma = m(dv/dt) =
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Rebecca Nov. 2013 Kyle‚ Mat‚ Alex Lab M7 Conservation of Momentum Abstract: This experiment involved the use of gliders on an air track which nearly isolates the colliding system from external forces to create low friction totally elastic and inelastic collisions. Seven different collisions were made‚ four elastic and three inelastic. The collisions consisted of only two gliders with varying masses and speeds. Each glider cart was equipped with a flag‚ and its passage through a photogate
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MOMENTUM QUESTIONS 1. Which has greater momentum: a train at rest or a moving skateboard? Since the train is not moving‚ it has zero momentum. The skateboard‚ as long as it has some speed‚ will have more momentum‚ since p = m*v. 2. What are the ways to increase impulse? Impulse depends on the magnitude of the applied external force and the time that the force acts on the system. By increasing either of those‚ impulse on a system will be increased‚ and the system’s momentum will change accordingly
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