PHYSICS Conservation of the Linear Momentum Remote Lab PART 1. Please carefully read the following examples and multiple choice problems. In marking and typing in your answers, you are expected to use bold and colored fonts on the following pages. If your electronic device allows for it, then you could circle/mark the answers, too. Just distinctively mark your answers to all of the following conceptual and computational exercises. Please work on these practice exercises and answer to the fill-in-the-blanks questions below. They prepare you for the following two sections of animated simulations observations (in Part 2) and concluding computations (in Part 3.) Let’s proceed: A moving car has momentum. If it moves twice as fast, its momentum is ____________ as much. Two cars move down a hill at the same speed. One car is twice as heavy and the other. Compared to the lighter car, the heavier car’s momentum is ________________ as much. A pellet gun shoots a pellet. The recoil momentum of the gun is (more than) (less than) (same as) the momentum of the pellet that was fired. Two balls, A and B are sitting on a table. Ball A is set in motion with a pool cue while Ball B is at rest. Ball A and Ball B collide Ball B moves away from Ball A A B A B A a. Upon collision, the momentum of Ball A (increases) (decreases) (stays the same) b. Upon collision, the momentum of Ball B (increases) (decreases) (stays the same) c. Upon collision, the momentum of both Balls (increases) (decreases) (stays the same) B The following is a Momentum Chart for the situation above which shows the momentum for each of the balls before and after the collision. Calculate the change in momentum for the System of the two balls. Remember to show all of your work that leads to the final numerical values stored in the table of data that follows. Before Collision After Collision Ball A 10 0 Ball B 0 10 Total What is the impulse (change in momentum) of Ball A? What is the impulse on Ball B? Is momentum for the system (Both Balls) conserved? Ball A is moving towards Ball B, but Ball B is already moving away slowly from Ball A A. The chart shows the Momentum of each of the balls before and after the collision. Assume that momentum is conserved and fill in the missing information B Again, please show all your work and explain in a few words. Before Collision After Collision Ball A 10 5 Ball B 5 Total Ball A is moving towards Ball B, but Ball B is moving towards Ball A. Again, assume that momentum is conserved and fill in the missing information. Before Collision After Collision Ball A 10 Ball B -10 A B 10 Total Ball A is moving towards Ball B, but Ball B is moving towards Ball A slowly. Again, assume that momentum is conserved and fill in the missing information. A B 2 Before Collision After Collision Ball A 10 -5 Ball B -5 Total Finally, Ball A is moving towards Ball B, but there is something sticky on Ball B and the Balls stick together after the collision. A B Again, assume that momentum is conserved and that both balls have the same mass. Fill in the missing information, provide a few words and complete calculations that lead to the final numerical values in the table of data provided below. Before Collision Ball A 10 Ball B 0 A After Collision Total PART 2. Now, let’s practice a bit more with one virtual simulation site that includes four types of collisions; they are listed in the table below, along with related collisions coefficients. Please access this site to run several simulations that describe four main types of collisions. Recall to activate all graphs to show and play them all at slow speed; watch carefully the values that are automatically calculated for velocities, linear momenta and energies. Spend the most time observing and linking these graph visuals with the textbook pages of chapter 7. Let’s observe and understand different types of collisions on the topic of the conservation of the total linear momentum. 3 B http://physics.bu.edu/~duffy/semester1/c13_elasticity.html Type of Collision Collision Coefficients of Elasticity Super-elastic k>1 Elastic k=1 Inelastic k
Purchase answer to see full attachment