Ideal Gas
An ideal gas exhibits no attractive forces between particles. All gases are modeled on the…
Chau Pham
Pressure, Simple Mercury Barometer
A barometer is used to measure atmospheric pressure, the pressure exerted by gas particles in…
Absolute Temperature, (K) Kelvin Scale
The kelvin is a unit of measurement for temperature; the null point of the Kelvin…
Conservative forces
Conservative force is a force with the property that the work is done in moving…
Work done by a constant force: W = Fd cosθ
The work done on a system by a constant force is the product of the…
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…