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Quiz

The Princeton Review Chapter 8 Linear Momentum

Anibal Santamaria 10 perguntas 5,0 (1 avaliação)

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Perguntas do quiz (10)

  1. 1An object of mass 2 kg has a linear momentum of magnitude 6 kg·m/s. What is this object's kinetic energy?
    1. A3 J
    2. B6 J
    3. C9 J
    4. D12 J
    5. E18 J
  2. 2The graph shows the force on an object over time. If the object has a mass of 8 kg and is moving in a straight line, what is its change in speed?Imagem da pergunta 2
    1. A16 m/s
    2. B14 m/s
    3. C12 m/s
    4. D10 m/s
    5. E8 m/s
  3. 3A box with a mass of 2 kg accelerates in a straight line from 4 m/s to 8 m/s due to the application of a force whose duration is 0.5 s. Find the average strength of this force.
    1. A2 N
    2. B4 N
    3. C8 N
    4. D12 N
    5. E16 N
  4. 4A ball of mass m traveling horizontally with velocity v strikes a massive vertical wall and rebounds back along its original direction with no change in speed. What is the magnitude of the impulse delivered by the wall to the ball?
    1. AImagem da opção A
    2. BImagem da opção B
    3. CImagem da opção C
    4. DImagem da opção D
    5. EImagem da opção E
  5. 5Two objects, one of mass 3 kg and moving with a speed of 2 m/s and the other of mass 5 kg and speed 2 m/s, move toward each other and collide head-on. If the collision is perfectly inelastic, find the speed of the objects after the collision.
    1. A0.25 m/s
    2. B0.5 m/s
    3. C0.75 m/s
    4. D1 m/s
    5. E2 m/s
  6. 6A student is trying to balance a meter stick on its midpoint. Given that m_1 = 6 kg and m_2 = 2 kg, how far from the left edge should the student hag a third mass, m_3 = 10 kg, to balance the meter stick?Imagem da pergunta 6
    1. A40 cm
    2. B50 cm
    3. C60 cm
    4. D70 cm
    5. E80 cm
  7. 7Two objects move toward each other, collide, ad separate. If there was no net external force acting on the objects, but some kinetic energy was lost, then
    1. Athe collision was elastic and total linear momentum was conserved
    2. Bthe collision was elastic and total linear momentum was not conserved
    3. Cthe collision was not elastic and total linear momentum was conserved
    4. Dthe collision was not elastic and total linear momentum was not conserved
    5. ENone of these
  8. 8Three thin, uniform rods each of length L are arranged in the shape of an inverted U, as shown in the figure. The two rods on the arms of the U each have mass m; the third rod has mass 2m. How far below the midpoint of the horizontal rod is the center of mass of this assembly?Imagem da pergunta 8
    1. AImagem da opção A
    2. BImagem da opção B
    3. CImagem da opção C
    4. DImagem da opção D
    5. EImagem da opção E
  9. 9A car of mass 1,000 kg collides head-on with a truck of mass 2,000 kg. Both vehicles are moving at a speed of 21 m/s, and the collision is perfectly inelastic. After the crash, the two vehicles skid to a halt. Assuming friction is the only force acting on the vehicles after the collision, how much work is done by friction after the crash?
    1. A73,500 J
    2. B-73,500 J
    3. C147,000 J
    4. D-147,000 J
    5. E220,500 J
  10. 10Which of the following best describes a perfectly inelastic collision free of external forces?
    1. ATotal linear momentum is never conserved.
    2. BTotal linear momentum is sometimes conserved.
    3. CKinetic energy is never conserved.
    4. DKinetic energy is sometimes conserved.
    5. EKinetic energy is always conserved.

Informações

Descrição
AP Physics C Quiz sobre The Princeton Review Chapter 8 Linear Momentum, criado por Anibal Santamaria em 27-07-2017.
Idioma
English
Visualizações
806
Avaliação
5,0 de 5 · 1 avaliação
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