Physics Chapter 12 Study Guide

Static Friction
the friction force that acts on objects that are not moving

Sliding Friction
a force that opposes the direction of motion of an object as it slides over a surface

Rolling Friction
the friction force that acts on rolling objects

Fluid Friction
opposes the motion of an object through a fluid

the tendency of an object to resist a change in its motion.

a measure of the inertia of an object and depends on the amount of matter the object contains.

the force of gravity acting on an object

Electric Force
is associated with charged particles.

Strong Nuclear Force
a powerful force of attraction that acts only on the neutrons and protons in the nucleus, holding them together

Weak Nuclear Force
an attractive force that acts only over a short range.

Gravitational Force
an attractive force that acts between any two masses.

Magnetic Force
the force a magnet exerts on another magnet, on iron or a similar metal, or on moving charges.

the result of a force distributed over an area

the ability of a fluid to exert an upward force on an object placed in it

a force that is exerted on an object by the acceleration of mass in one direction.

an upward force due to a pressure difference between the top and bottom of a wing

Bernoulli Effect
as the speed of a fluid increases, the pressure within the fluid decreases

Drag/Air Resistance
acts in the opposite direction of the motion reducing acceleration

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