Podcast
Questions and Answers
A simple pendulum of length $l$ with a bob of mass $m$ is oscillating with a small amplitude. If the mass of the bob is doubled, what is the effect on the pendulum's period?
A simple pendulum of length $l$ with a bob of mass $m$ is oscillating with a small amplitude. If the mass of the bob is doubled, what is the effect on the pendulum's period?
- The period is multiplied by $\sqrt{2}$.
- The period remains unchanged. (correct)
- The period is halved.
- The period is doubled.
A particle is moving under the influence of a central force. Which of the following quantities is conserved?
A particle is moving under the influence of a central force. Which of the following quantities is conserved?
- Angular momentum (correct)
- Linear momentum
- Potential energy
- Kinetic energy
Two masses, $m_1$ and $m_2$, are connected by a massless string over a frictionless pulley. If $m_1 > m_2$, what is the acceleration of the mass $m_1$?
Two masses, $m_1$ and $m_2$, are connected by a massless string over a frictionless pulley. If $m_1 > m_2$, what is the acceleration of the mass $m_1$?
- $\frac{m_1 - m_2}{m_1 + m_2}g$ (correct)
- $\frac{m_1}{m_1 + m_2}g$
- $g$
- $\frac{m_2}{m_1 + m_2}g$
A projectile is launched at an angle $\theta$ with respect to the horizontal with an initial velocity $v_0$. Assuming negligible air resistance, what angle $\theta$ maximizes the range of the projectile?
A projectile is launched at an angle $\theta$ with respect to the horizontal with an initial velocity $v_0$. Assuming negligible air resistance, what angle $\theta$ maximizes the range of the projectile?
A block of mass $m$ is sliding down an inclined plane with a coefficient of kinetic friction $\mu_k$. The angle of the incline with the horizontal is $\theta$. What is the acceleration of the block?
A block of mass $m$ is sliding down an inclined plane with a coefficient of kinetic friction $\mu_k$. The angle of the incline with the horizontal is $\theta$. What is the acceleration of the block?
A particle of mass $m$ is moving in a circular path of radius $r$ with constant speed $v$. What is the magnitude of the angular momentum of the particle about the center of the circle?
A particle of mass $m$ is moving in a circular path of radius $r$ with constant speed $v$. What is the magnitude of the angular momentum of the particle about the center of the circle?
A spring with spring constant $k$ is stretched a distance $x$ from its equilibrium position. What is the potential energy stored in the spring?
A spring with spring constant $k$ is stretched a distance $x$ from its equilibrium position. What is the potential energy stored in the spring?
Two objects collide inelastically. Which of the following is always conserved?
Two objects collide inelastically. Which of the following is always conserved?
A rigid body is rotating about a fixed axis. Which of the following quantities is the same for all points in the body?
A rigid body is rotating about a fixed axis. Which of the following quantities is the same for all points in the body?
What is the number of degrees of freedom for a diatomic molecule, considering it can both rotate and vibrate?
What is the number of degrees of freedom for a diatomic molecule, considering it can both rotate and vibrate?
Flashcards
Classical Mechanics
Classical Mechanics
Study of motion and forces, uses Newton's Laws.
Inertial Frame
Inertial Frame
Inertial reference frames move at constant velocity.
Inertia
Inertia
Property resisting changes in motion; proportional to mass.
Newton's Second Law
Newton's Second Law
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Newton's Third Law
Newton's Third Law
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Inertial Mass
Inertial Mass
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Friction
Friction
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Kinetic Friction
Kinetic Friction
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Static Friction
Static Friction
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