CH 2: Introduction to Momentum and Impulse

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Questions and Answers

What is the relationship between mass and momentum?

  • Momentum is independent of mass
  • Mass and momentum are inversely proportional
  • Mass has no effect on momentum
  • Mass and momentum are directly proportional (correct)

How does kinetic energy scale with velocity?

  • Kinetic energy decreases with increasing velocity
  • Kinetic energy scales with the square of velocity (correct)
  • Kinetic energy is independent of velocity
  • Kinetic energy scales linearly with velocity

What aspect of physics does impulse relate to?

  • Impulse is related to vectors
  • Impulse directly relates to mass
  • Impulse connects with other fundamental physics concepts (correct)
  • Impulse governs the movement of celestial bodies

Why is mastering unit conversion essential in calculating momentum accurately?

<p>It helps in converting units to match the equation's requirements (C)</p> Signup and view all the answers

Which fundamental physics concept underpins the principles of momentum, especially force and acceleration?

<p>Newton's Third Law (A)</p> Signup and view all the answers

What is the mathematical representation of momentum?

<p>$p = mv$ (A)</p> Signup and view all the answers

Which of the following statements about momentum is true?

<p>Momentum is a vector quantity, having both magnitude and direction. (C)</p> Signup and view all the answers

What is the mathematical representation of impulse?

<p>$J = F\Delta t$ (D)</p> Signup and view all the answers

Which of the following scenarios illustrates the concept of momentum?

<p>A falcon landing on your arm. (C)</p> Signup and view all the answers

In a vehicular collision, which vehicle will impart a greater change in momentum, assuming identical speeds?

<p>A truck (D)</p> Signup and view all the answers

Which physics concept directly relates to mass and velocity and governs the movement of bodies in motion?

<p>Momentum (C)</p> Signup and view all the answers

What fundamental physics concept emphasizes action and reaction pairs and is integral to understanding momentum changes during interactions?

<p>Newton’s Third Law (C)</p> Signup and view all the answers

What aspect of physics is essential in converting units (e.g., from grams to kilograms, km/h to m/s) for accurate momentum calculations?

<p>Unit Conversion Mastery (B)</p> Signup and view all the answers

In the context of momentum, what does the square of velocity scale with, according to physics principles?

<p>Mass (B)</p> Signup and view all the answers

When solving problems involving momentum and impulse, what type of manipulation of equations is required?

<p>Comfortable Manipulation (D)</p> Signup and view all the answers

Which concept in physics relates to the capacity to do work and scales with the square of velocity?

<p>Kinetic Energy (C)</p> Signup and view all the answers

What type of quantity is momentum in physics that requires understanding how to add vectors graphically and algebraically?

<p>Vector Quantity (B)</p> Signup and view all the answers

Which physics concept underpins the principles of momentum, especially relating to force and acceleration?

<p>Newton’s Second Law (B)</p> Signup and view all the answers

'Impulse' in physics connects with which other fundamental physics concept?

<p>'Conservation of Momentum' (B)</p> Signup and view all the answers

'Momentum' plays a significant role in understanding which real-world phenomenon related to forces and motion?

<p>'Vehicle Collisions' (C)</p> Signup and view all the answers

If an object's mass is doubled and its velocity remains constant, what happens to its momentum?

<p>The momentum doubles (D)</p> Signup and view all the answers

Which of the following is an accurate statement about impulse?

<p>Impulse is the change in momentum over time (C)</p> Signup and view all the answers

If a constant force is applied to an object for a longer duration, what happens to the impulse?

<p>The impulse increases (B)</p> Signup and view all the answers

Which of the following scenarios best illustrates the concept of momentum?

<p>A bowling ball rolling down a lane (A)</p> Signup and view all the answers

If a force is applied to an object for a shorter time interval, what happens to the impulse?

<p>The impulse decreases (A)</p> Signup and view all the answers

What is the SI unit for momentum?

<p>Kilogram-meter per second (kg·m/s) (B)</p> Signup and view all the answers

In a collision between two objects, which of the following is conserved?

<p>Momentum (C)</p> Signup and view all the answers

What is the relationship between impulse and the change in momentum?

<p>Impulse is equal to the change in momentum (A)</p> Signup and view all the answers

If an object's velocity is doubled and its mass remains constant, what happens to its momentum?

<p>The momentum doubles (A)</p> Signup and view all the answers

Which of the following best describes the nature of momentum?

<p>Momentum is a vector quantity (A)</p> Signup and view all the answers

What does momentum measure in an object?

<p>The motion and difficulty to stop of the object (D)</p> Signup and view all the answers

In physics, what does impulse represent?

<p>The change in momentum caused by a force over time (A)</p> Signup and view all the answers

Which vehicle, given identical speeds, will transfer more momentum in a collision?

<p>A truck with higher mass (B)</p> Signup and view all the answers

If an object's mass increases while its velocity remains constant, what happens to its momentum?

<p>Increases (D)</p> Signup and view all the answers

What is the relationship between impulse and change in momentum?

<p>They are directly proportional (D)</p> Signup and view all the answers

In physics, what does the product of an object's mass and velocity give us?

<p>Momentum (A)</p> Signup and view all the answers

Which concept demonstrates that momentum is a vector quantity?

<p>Direction (B)</p> Signup and view all the answers

What determines the amount of momentum transferred during a collision?

<p>$\Delta p$ (C)</p> Signup and view all the answers

If a force is applied over a longer time interval, what happens to the impulse produced?

<p>Increases (B)</p> Signup and view all the answers

What is the physical quantity that represents the change in momentum during interactions?

<p>Impulse (B)</p> Signup and view all the answers

If an asteroid collides with the Moon, why does the Moon's orbit remain largely unaffected?

<p>The Moon's massive momentum, due to its large mass and velocity, makes it resistant to significant trajectory changes. (D)</p> Signup and view all the answers

Which of the following statements correctly distinguishes between kinetic energy and momentum?

<p>Kinetic energy relates to the capacity to do work and scales with the square of velocity, while momentum directly relates to mass and velocity. (A)</p> Signup and view all the answers

Which of the following physics concepts is not directly related to the study of momentum and impulse?

<p>Conservation of energy (B)</p> Signup and view all the answers

If a constant force is applied to an object for a longer duration, what happens to the impulse imparted to the object?

<p>The impulse increases. (D)</p> Signup and view all the answers

Which of the following scenarios best illustrates the concept of momentum conservation?

<p>A collision between two objects of equal mass and opposite velocities. (A)</p> Signup and view all the answers

If an object's mass is tripled and its velocity is halved, what happens to its momentum?

<p>The momentum remains unchanged. (C)</p> Signup and view all the answers

Which of the following scenarios best illustrates the concept of impulse?

<p>A baseball player catching a fly ball. (C)</p> Signup and view all the answers

If a force is applied to an object for a shorter time interval, what happens to the impulse imparted to the object?

<p>The impulse decreases. (B)</p> Signup and view all the answers

Which of the following statements correctly describes the mathematical representation of momentum?

<p>Momentum is represented as $mv$. (A)</p> Signup and view all the answers

Which of the following statements about the nature of momentum is true?

<p>Momentum is a vector quantity. (D)</p> Signup and view all the answers

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