Bottomless Worksheet of Pressure Conversion

You’ll get endless practice converting between the millibar, atmosphere, and torr scales with this Bottomless Worksheet. A button-click creates another ten problems, with a printed copy and answer sheet also available. Continue reading

Pressure Conversion

Pressure is defined as force per unit area. Use this Formula Solver to learn how to convert between pressure’s primary units of measurement — millibars, atmospheres, and millimeters of Mercury (or torr). Continue reading


Pressure is defined as force per unit area. This Formula Solver! Series program shows the step-by-step solution for finding pressure (in pascals), force (in newtons), or area (in meters squared) from the other two values (which you can enter yourself). Continue reading

Universal Gravitation

Newton’s Law of Universal Gravitation says the force between any two bodies is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them. Use this Formula Solver to learn more. Continue reading

Centripetal Force

A mass moving in a circle at constant velocity needs a force directed towards the center of the circle in order to maintain the circular motion and constant velocity. Learn how to calculate this Centripetal Force with this Formula Solver. Continue reading

Newton’s Second Law

Newton’s Second Law describes the fundamental relationship between force, mass, and acceleration. Use this Formula Solver! Series program to learn how it works (and to check your homework answers, too!) Continue reading