Impulse And Momentum Quiz For Beginners

Reviewed by Rajendra Khanal
Rajendra Khanal, PhD (Physics) |
Assistant Professor of Physics
Review Board Member
Rajendra Khanal, PhD in Applied Physics from The University of Toledo, is an Assistant Professor at the University of Pittsburgh with over 20 years of teaching experience. He also holds an MSHIM degree in Health Information Management from the University of Pittsburgh.
, PhD (Physics)
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Impulse And Momentum Quiz For Beginners - Quiz

Dive into the fascinating world of physics with our Impulse and Momentum Quiz. This quiz is designed to test your understanding of two fundamental concepts in mechanics: impulse and momentum.

Impulse refers to the change in momentum of an object resulting from applying force over a certain period. On the other hand, momentum is the product of an object's mass and velocity, representing the quantity of motion it possesses.

In this quiz, you'll encounter questions that challenge your knowledge of these concepts, ranging from basic definitions to complex calculations and real-world applications. Whether you're a student studying physics or Read moresimply curious about the forces that govern motion, our Impulse and Momentum Quiz offers a stimulating way to test and expand your knowledge. Get ready to think critically, solve problems, and deepen your understanding of these essential physics concepts!


Impulse and Momentum Questions and Answers

  • 1. 

    The momentum of a body is equal to its mass multiplied by its velocity.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because momentum is defined as the product of an object's mass and its velocity. In other words, the momentum of a body is directly proportional to both its mass and its velocity. This relationship is described by the equation p = mv, where p represents momentum, m represents mass, and v represents velocity. Therefore, the statement accurately states that the momentum of a body is equal to its mass multiplied by its velocity.

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  • 2. 

    A ball of mass 3kg is moving to the right with velocity 3m/s and a ball of mass 1kg is moving to the left with velocity 2m/s. we can use the principle of conservation of mass to determine the velocity of the other ball after the collision.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The principle of conservation of mass does not apply to determine the velocity of the other ball after the collision. The principle of conservation of momentum, on the other hand, can be used to determine the velocity of the other ball after the collision.

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  • 3. 

    What is true about impulse and momentum

    • A.

      Impulse deals with velocity while momentum deals with change in velocity

    • B.

      Impulse is mass times velocity while momentum is force times time

    • C.

      Momentum is the mass of a substance multiplied by the velocity while impulse is just the change of momentum

    • D.

      Momentum and impulse are unrelated to each other

    Correct Answer
    C. Momentum is the mass of a substance multiplied by the velocity while impulse is just the change of momentum
    Explanation
    Momentum is defined as the product of an object's mass and its velocity. It represents the quantity of motion possessed by an object. On the other hand, impulse is the change in momentum of an object. It is equal to the force applied to an object multiplied by the time interval over which the force acts. Therefore, the correct answer states that momentum is the product of mass and velocity, while impulse is the change in momentum.

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  • 4. 

    A 71.25 kilogram motorcycle is moving at a speed of 33.75 m/s. What is the momentum of the cycle?

    • A.

      Equal to 200 kg m/s

    • B.

      Greater than 200 kg m/s

    • C.

      Less than 200 kg m/s

    Correct Answer
    B. Greater than 200 kg m/s
    Explanation
    The momentum of an object is calculated by multiplying its mass by its velocity. In this case, the mass of the motorcycle is given as 71.25 kilograms and its velocity is given as 33.75 m/s. When these values are multiplied together, the result is 2401.875 kg m/s, which is greater than 200 kg m/s. Therefore, the momentum of the motorcycle is greater than 200 kg m/s.

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  • 5. 

    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.

      A magnitude lesser than 30 m/s moving in the initial direction of the car

    • B.

      A magnitude lesser than 30m/s moving in the initial direction of the car

    • C.

      A magnitude lesser than 30 m/s moving in the initial direction of the truck

    • D.

      A magnitude greater than 30 m/s moving in the initial direction of the truck

    Correct Answer
    D. A magnitude greater than 30 m/s moving in the initial direction of the truck
    Explanation
    When the small car and the truck collide, they become intertwined and mangled, forming a single mass. According to the law of conservation of momentum, the total momentum before the collision is equal to the total momentum after the collision. Since the truck has a greater mass and a higher initial velocity, it contributes more to the total momentum. Therefore, the wreckage will move with a magnitude greater than 30 m/s in the initial direction of the truck.

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  • 6. 

    Because of the principle of conservation of momentum, a rocket can get rid of its empty stages

    • A.

      To decrease velocity

    • B.

      To maintain velocity

    • C.

      To increase mass

    • D.

      To increase velocity

    Correct Answer
    D. To increase velocity
    Explanation
    According to the principle of conservation of momentum, the total momentum of a system remains constant unless acted upon by an external force. In the case of a rocket, when it gets rid of its empty stages, it reduces its total mass. As momentum is the product of mass and velocity, by decreasing the mass, the rocket can increase its velocity to maintain the same momentum. Therefore, the correct answer is "to increase velocity".

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  • 7. 

    A 50 kg skateboarder is riding his 2.3 kg skateboard at a speed of 4 m/s.What is his momentum?

    • A.

      Greater than 200 kg m/s

    • B.

      In between 100 and 200 kg m/s

    • C.

      Less than 100 kg m/s

    Correct Answer
    A. Greater than 200 kg m/s
    Explanation
    The momentum of an object is calculated by multiplying its mass by its velocity. In this case, the skateboarder has a mass of 50 kg and is riding a skateboard with a mass of 2.3 kg at a speed of 4 m/s. Therefore, the momentum can be calculated as follows: momentum = (mass of skateboarder + mass of skateboard) x velocity = (50 kg + 2.3 kg) x 4 m/s = 52.3 kg x 4 m/s = 209.2 kg m/s. Since the calculated momentum is 209.2 kg m/s, which is greater than 200 kg m/s, the correct answer is "greater than 200 kg m/s".

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  • 8. 

    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?

    • A.

      The 9-ball would have a velocity greater than 2 m/s

    • B.

      The 9-ball would have a velocity greater than 0.5 m/s but less than 2m/s

    • C.

      The red cue ball would have a velocity greater than 1.0 m/s

    • D.

      The red cue ball would have a velocity of 0 m/s

    • E.

      The two cue balls would stick together and have the same velocity

    Correct Answer
    D. The red cue ball would have a velocity of 0 m/s
    Explanation
    When two objects collide elastically, the total momentum before the collision is equal to the total momentum after the collision. In this case, the red cue ball is rolling at 1.4 m/s and collides elastically with the stationary 9-Ball. Since the 9-Ball is at rest, its initial velocity is 0 m/s. After the collision, the red cue ball will transfer all of its momentum to the 9-Ball, causing it to move in the opposite direction. Therefore, the red cue ball will come to a stop and have a velocity of 0 m/s.

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  • 9. 

    In a perfectly elastic collision, a ball dropped from a certain height would bounce

    • A.

      At a greater height

    • B.

      At the same height

    • C.

      At a lesser height

    • D.

      Would stick to the floor

    Correct Answer
    B. At the same height
    Explanation
    In a perfectly elastic collision, the kinetic energy is conserved. When a ball is dropped from a certain height and it undergoes a perfectly elastic collision with the floor, it will bounce back with the same amount of kinetic energy it had before the collision. This means that it will reach the same height as the initial drop, as the gravitational potential energy is converted back into kinetic energy during the bounce. Therefore, the ball will bounce at the same height.

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  • 10. 

    In a perfectly inelastic collision, a ball dropped from a certain height would bounce

    • A.

      At a greater height

    • B.

      At the same height

    • C.

      At a lesser height

    • D.

      Would stick to the floor

    Correct Answer
    D. Would stick to the floor
    Explanation
    In a perfectly inelastic collision, the objects involved stick together and move as one mass after the collision. This means that the ball would stick to the floor and not bounce back up to any height.

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Rajendra Khanal |PhD (Physics) |
Assistant Professor of Physics
Rajendra Khanal, PhD in Applied Physics from The University of Toledo, is an Assistant Professor at the University of Pittsburgh with over 20 years of teaching experience. He also holds an MSHIM degree in Health Information Management from the University of Pittsburgh.

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  • Current Version
  • Mar 27, 2024
    Quiz Edited by
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    Expert Reviewed by
    Rajendra Khanal
  • Oct 25, 2009
    Quiz Created by
    Thechadwictan
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