Pressure, Simple Mercury Barometer
A barometer is used to measure atmospheric pressure, the pressure exerted by gas particles in…
Shannon
Absolute Temperature, (K) Kelvin Scale
The kelvin is a unit of measurement for temperature; the null point of the Kelvin…
Torques, Lever arms
The second condition of static equilibrium says that the net torque acting on the object…
Vector Analysis of Forces Acting on a Point Object
When an object is in equilibrium, the vector sum of all forces acting upon it…
Acceleration
Acceleration is a vector representing the rate at which the velocity of a body changes…
Speed, Velocity (Average and Instantaneous)
Average velocity is defined as the change in position (or displacement) over the time of…
Units and Dimensions
Scientists (and the MCAT) use the International System of Units (SI) to express the measurements…
Center of Mass
The center of mass is a position defined relative to an object or system of objects. It…
Newton’s Third Law
Newton’s Third Law of Motion states whenever one body exerts a force on a second…
Friction, Static, and Kinetic
Friction is a force that opposes relative motion between systems in contact and its magnitude…