1. What is the momentum of the cart at t = 8 seconds? 0 kg m/s. 5 kg m/s. 10 kg m/s. 20 kg m/s
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1 North arolina Testing Program EO Physics Sample Items Goal 5 1. What is the momentum of the cart at t = 8 seconds? 0 kg m/s 5 kg m/s 10 kg m/s kg flashlight is constructed to withstand a specific force of impact that protects the bulb. standard 0.10 second is used as time-of-impact in calculating a flashlight s specifications. 20 kg m/s kg insect is flying horizontally with a momentum of kg m/s headwind. What is its resulting velocity relative to the ground? What is the impact force on the 0.40-kg flashlight if it falls 2.5 meters and hits a concrete floor at 7.0 m/s, stopping in 0.10 seconds? 8.0 m/s 1.0 N 6.0 m/s 2.8 N 0.80 m/s 28 N 0.60 m/s 98 N 4. What impulse must be applied to a 25.0-kg cart to cause a velocity change of 12.0 m/s? N s 2.10 N s 13.0 N s 300. N s Page 1 Published ecember May reproduce for instructional and
2 North arolina Testing Program EO Physics Sample Items Goal 5 5. ball is hit with a bat. student determines that the momentum of the ball is 1.0 kilogram meter per second. What is the mass of the ball if it has a velocity of 2.0 meters per second? 0 kg 0.50 kg 1.0 kg 2.0 kg kg student on ice skates stands at rest on a frictionless frozen pond holding a 10.-kg brick. He throws the brick east with a speed of 18 m/s. What is the resulting velocity of the student? 3.0 m/s west 3.0 m/s east 18 m/s west 18 m/s east 6. rubber ball bounces off a brick wall. If the ball strikes the wall with an initial horizontal velocity of 1.5 meters per second, what will the approximate magnitude of the horizontal component velocity of the ball be after the collision? 8. 1,000-kg cannon fires a 10-kg projectile horizontally at a velocity of 300 m/s. What is the recoil velocity of the cannon? 0.3 m/s 0 m/s 3 m/s 0.75 m/s 30 m/s 1.5 m/s 300 m/s 3.0 m/s 4 9. train car with a mass of kg traveling north at 1.5 m/s collides and 4 couples with a kg train car going south at 0.80 m/s. What is the velocity of the coupled cars after the collision? 0.31 m/s north 0.31 m/s south 0.97 m/s north 0.97 m/s south Page 2 Published ecember May reproduce for instructional and
3 North arolina Testing Program EO Physics Sample Items Goal student on roller skates throws a basketball forward. How does the momentum of the student on skates compare to the momentum of the basketball? The velocity of the student is equal in magnitude but opposite in direction to the velocity of the The velocity of the student is equal in magnitude and in the same direction as the velocity of the 11. uring batting practice, a 0.30-kg baseball is hit with a bat that exerts a force of 350 N on the ball. The ball left the bat at 80. m/s. If the incoming pitch was traveling at 60. m/s, how long did the ball stay in contact with the bat? 0.12 s 0.50 s 0.85 s 1.4 s The product of the mass times the velocity of the student is equal in magnitude and in the same direction as the product of the mass times the velocity of the The product of the mass times the velocity of the student is equal in magnitude but opposite in direction to the product of the mass times the velocity of the End of Goal 5 Sample Items In compliance with federal law, including the provisions of Title IX of the Education mendments of 1972, the epartment of Public Instruction does not discriminate on the basis of race, sex, religion, color, national or ethnic origin, age, disability, or military service in its policies, programs, activities, admissions or employment. Page 3 Published ecember May reproduce for instructional and
4 EO Physics Goal 5 Sample Items Key Report 1 Objective: 5.01 ssess the vector nature of momentum and its relation to the mass and velocity of an object. Thinking Skill: pplying orrect nswer: 2 Objective: 5.02 ompare and contrast impulse and momentum. Thinking Skill: pplying orrect nswer: 3 Objective: 5.03 nalyze the factors required to produce a change in momentum. Thinking Skill: pplying orrect nswer: 4 Objective: 5.03 nalyze the factors required to produce a change in momentum. Thinking Skill: pplying orrect nswer: 5 Objective: 5.04 nalyze one-dimensional interactions between objects and recognize that the total Thinking Skill: pplying orrect nswer: 6 Objective: 5.04 nalyze one-dimensional interactions between objects and recognize that the total Thinking Skill: pplying orrect nswer: 7 Objective: 5.04 nalyze one-dimensional interactions between objects and recognize that the total Thinking Skill: pplying orrect nswer: 8 Objective: 5.04 nalyze one-dimensional interactions between objects and recognize that the total Thinking Skill: pplying orrect nswer: 9 Objective: 5.05 ssess real world applications of the impulse and momentum, including but not limited Thinking Skill: pplying orrect nswer: Page 1 Published ecember May reproduce for instructional and educational purposes only; not for personal or financial gain.
5 EO Physics Goal 5 Sample Items Key Report 10 Objective: 5.05 ssess real world applications of the impulse and momentum, including but not limited Thinking Skill: nalyzing orrect nswer: 11 Objective: 5.05 ssess real world applications of the impulse and momentum, including but not limited Thinking Skill: pplying orrect nswer: Page 2 Published ecember May reproduce for instructional and educational purposes only; not for personal or financial gain.
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Conservation of Momentum In the 17 th century, Newton and others had measured the momentum of colliding objects before and after collision, and had discovered a strange phenomenon: the total momentum of
Test Booklet. Subject: SC, Grade: HS 2008 Grade High School Physics. Student name:
Test ooklet Subject: S, Grade: HS 2008 Grade High School Physics Student name: uthor: North arolina istrict: North arolina Released Tests Printed: Monday July 09, 2012 1 n object is launched across a room.
Slide 1 / 40. Multiple Choice AP Physics 1 Momentum
Slide 1 / 40 Multiple Choice AP Physics 1 Momentum Slide 2 / 40 1 A truck moves along a frictionless level road at a constant speed. The truck is open on top. A large load of gravel is suddenly dumped
Which car (A or B) experiences the greatest change in momentum? Explain.
MOM B - Impulse and Change of Momentum Original Assignment Start with #3. Using the F t = m v Equation to Analyze Impulses and Momentum Changes: 3. Two cars of equal mass are traveling down Lake Avenue