Physics 12th: Dynamics, Magnetism, Kinematics, Electricity, Gravitation

Newton's laws of motion, impulse and conservation of momentum, work, energy, power, circular motion, centripetal force, projectiles, gravity

Studying the behavior of magnets and magnetic fields.

Motion without considering the causes of motion (forces).

<p>Behavior of electric charges and electricity.</p> Signup and view all the answers

<p>Gravity.</p> Signup and view all the answers

<p>Torque is the rotational equivalent of force, causing an object to rotate. Its mathematical formula is $\tau = F \cdot r \sin \theta$.</p> Signup and view all the answers

<p>Angular momentum measures an object's rotational motion. It is calculated as $L = I \cdot \omega$, where $I$ is the moment of inertia and $\omega$ is the angular velocity.</p> Signup and view all the answers

<p>Torque is equal to the product of moment of inertia and angular acceleration.</p> Signup and view all the answers

<p>Moment of inertia quantifies an object's resistance to changes in its rotation. It is a key factor in determining how an object behaves when rotating.</p> Signup and view all the answers

<p>The moment of inertia increases with the mass being located farther from the axis of rotation.</p> Signup and view all the answers

<p>Angular velocity determines the rate at which an object rotates. Higher angular velocity leads to faster rotation.</p> Signup and view all the answers

<p>The rotational kinetic energy is given by $KE = \frac{1}{2} I \omega^2$.</p> Signup and view all the answers

<p>Torque causes angular acceleration in a rotating object. The greater the torque applied, the greater the resulting angular acceleration.</p> Signup and view all the answers

<p>In the absence of external torques, the total angular momentum of a system remains constant.</p> Signup and view all the answers

<p>Rotational kinetic energy is the energy associated with an object's rotation and is related to angular momentum. An increase in angular momentum corresponds to an increase in rotational kinetic energy.</p> Signup and view all the answers

<p>An increase in angular velocity results in a higher rate of rotation or spinning of the object.</p> Signup and view all the answers

<p>Moment of inertia quantifies how mass is distributed in an object, affecting its resistance to changes in rotation.</p> Signup and view all the answers