Mechanics: Statics, Dynamics, and Kinematics Quiz

Absolute rest occurs when a body does not change its position with respect to its surroundings, while absolute motion occurs when a body changes its position with respect to its surroundings.

Mechanics is the branch of physics that deals with the study of bodies at rest or in motion. Its branches include statics, dynamics, and kinematics.

A frame of reference is a coordinate system used to locate a body in motion. If the coordinates of all the points of a body remain unchanged with time and with respect to the frame of reference, the body is said to be at rest.

<p>Dynamics proper studies the parameters describing motion and the agents causing motion. It differs from kinematics, which only studies the parameters describing motion like position, position vector, distance, displacement, and velocity.</p> Signup and view all the answers

<p>Rest and motion are relative terms because whether a body is at rest or in motion depends on its surroundings and the observer's point of reference.</p> Signup and view all the answers

<p>Fundamental physical quantities do not depend on any other quantity for measurement and include length, mass, time, temperature, current, luminous intensity, and amount of substance. Derived physical quantities depend on fundamental physical quantities for measurement, such as area, volume, velocity, acceleration, force, and work.</p> Signup and view all the answers

<ol> <li>Length - meter (m) 2) Mass - kilogram (kg) 3) Time - second (s) 4) Temperature - kelvin (K) 5) Current - ampere (A) 6) Luminous intensity - candela (cd) 7) Amount of Substance - mole (mol)</li> </ol> Signup and view all the answers

<p>A unit is the standard used to measure physical quantities. Examples include fundamental units such as meter (m), kilogram (kg), and second (s); derived units like newton and joule; and supplementary units like plane angle and solid angle.</p> Signup and view all the answers

<p>Fundamental units are the units of fundamental physical quantities, such as meter (m) for length and kilogram (kg) for mass. Derived units are units of derived physical quantities, like newton for force and joule for work.</p> Signup and view all the answers

<p>Supplementary units are the units of supplementary quantities, including plane angle and solid angle. Examples of supplementary quantities are plane angle and solid angle.</p> Signup and view all the answers