Welcome to your Dynamics - Momentum and Circular Motion(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. In the marble-cup momentum lab, the "distance the cup moved" was an indirect measurement for the marble's.... Velocity Momentum Speed Acceleration2. Which of these marbles would have the greatest momentum assumingthey all travel at the same velocity? 4.8 grams red marble 2.3 gram clear marble 6.2 gram white marble 4.3 grams blue marble3. During a car collisiion the mometum of all moving object is changed. The change was in the speed of the moving objects. All moving objects (cars) came to rest. Which of these impulses would result in least injury to the vehicle passengers? When a large Force is applied for a long period of time. When a very large force is applied for a very short period of time. When a small force is applied for a very short time. When a small force is applied over a long period of time4. What impulse occurs when an average force of 15 N is exerted on a cart for 3.0 s? 55 N.s 40 N.s 45 N.s 50 N.s5. Which of the following variables was assumed constant in both parts of the momentum lab where moving marbles moved an inverted plastic cup Velocity of the marbles. Friction between the cup and the table Momentum of all the marbles. Mass of the marbles.6. A bat exerts a horizontal force on a 0.145-kg ball ofF(t) = [1.6t - 6t^2] between t = 0 and t = 2.50 sCalculate the impulse exerted by the bat on the ball at t=2.50s. -33.5N.s 0N.s -26.25N.s 33.5N.s7. The momentum of a body is equal to its mass multiplied by its velocity. False True8. The unit for the quantity "MOMENTUM" is __________ in the metric system. Kg m/s/s/s Kg m Kg m/s/s Kg m/s9. Two swimmers relax close together on air mattresses in a pool. One swimmer's mass is 48 kg, and the other's mass is 55 kg. If the swimmers push away from each other, Their total momentum triples. Their total momentum doubles. Their momenta are equal but opposite. Their total momentum decreases.10. Momentum means or is most associated with: Newton's second Law Impulse Inertia Inertia in Motion11. Which of the following objects have the least momentum? 2 kg rock falling at 3 m/s. 3 Kg rock falling at 10 m/s 5 Kg rock not moving 4 kg rock falling at 2 m/s12. What could be the momentum of a 1,300-kg car that moves at 4 m/s? 5,200 N 52 N 5,200 kg.m/s 52 kg.m/s13. What one characteristics of a bullet gives it its large momentumwhen fired from a hand-gun? Velocity Mass Inertia Shape14. Which of the following is a way to decrease momentum? Increase friction Increase velocity Increase impulse Increase force15. A 75 kg person walking around a corner bumped into an 80 kg person who was running around the same corner. The momentum of the 80 kg person Increased. Remained the same. Was conserved Decreased.16. A small car (mass = 71.25 kilograms), moving at 52.5 m/s, crashes head on with a 285 kilogram truck moving at 33.75 m/s in the opposite direction (negative velocity). If the two cars become intertwined and mangled (inelastic), with what velocity does the wreckage move? (Don't forget direction!) A magnitude greater than 30 m/s moving in the initial direction of the truck A magnitude lesser than 30 m/s moving in the initial direction of the car A magnitude lesser than 30m/s moving in the initial direction of the car A magnitude lesser than 30 m/s moving in the initial direction of the truck17. What is the average force that a gun exerts on a bullet shot with an impulse of 14,000 N.s? Assume it took 0.4 s for the bullet to leave the barrel. 30,000 N 5,600 N 56,000N 35,000N18. If your dog pulls the rope with 15 N force to the right and you pull the rope 5 N force to the left. What is the force and direction in Newtons of the final motion? 15 Newtons to the right 10 Newtons to the right 15 Newtons to the left 10 Newtons to the left19. A 0.2 kg red cue ball rolling at 1.4 m/s elastically collides directly with a 0.2 kg 9-Ball at rest.Which of the following is true? The red cue ball would have a velocity greater than 1.0 m/s The red cue ball would have a velocity of 0 m/s The 9-ball would have a velocity greater than 2 m/s The 9-ball would have a velocity greater than 0.5 m/s but less than 2m/s20. In a perfectly inelastic collision, a ball dropped from a certain height would bounce At a lesser height At a greater height Would stick to the floor At the same height21. In the marble-cup momentum lab, the velocity (speed) of the marble was increased by.... Decreasing the mass of the marble Moving the marble farther up the ramp (ruler). Moving the marble lower on the ramp (ruler). Increasing the mass of the marble.22. Relative between impulse and force Impulse=force/time Impulse=force*time Force=impulse*time All of the above23. A 50 kg Corvette (car) has a momentum of 500 kg m/s. How fast is the car going? 250 m/s 70 m/s 25,000 m/s 10 m/s24. A 10 kg body moving with 33m/s and the another body is moving with 55m/s with mass 2kg both body's collide with one other this is an completely inelastic collision. what is the final velocity after the collision 4m/s 27.5m/s 5.6m/s 12.6m/s25. Momentum has Direction only Magnitude and direction Force and Velocity Magnitude only26 out of 25Time is Up!