Forces Glossary

A substance that can flow, including liquids and gases.

Mass per unit volume of a fluid.

typically measured in newtons (N), named after Sir Isaac Newton himself. One newton is defined as the force required to accelerate a one-kilogram mass by one meter per second squared. It's like a cosmic unit of measurement that quantifies the push or pull between objects.

The part of a force acting along a chosen direction.

A graph showing how force changes with time.

Motion in which gravity is the only significant force acting.

represent the object as a dot or a simple shape and label it with the forces acting upon it. These forces can include gravity, friction, applied forces, tension, and more.

sketch that isolates an object of interest and depicts all the external forces acting upon it. It's a visual representation that helps us analyze and understand the forces that influence the motion or equilibrium of an object.

the number of cycles or oscillations of a wave that occur in a given unit of time. It's like a cosmic melody, determining the pitch and rhythm of the waves that surround us. It is measured in hertz (Hz), which represents the number of cycles or oscillations per second. Mathematically, can be expressed as 1/T.

A resistive force on an object, opposing motion.

The absence of friction.