Chapter 12 flashcards

17 cards·by alyssa1

Force

a push or pull that acts on an object

Net force

the overall force acting on an object after all the forces are combined

Friction

a force that opposes motion of objects that touch as they move past each other

Static Friction

the friction force that acts on objects that aren't moving

Sliding Friction

is a force that opposes the direction of motion of an object as its slides over a surface

Fluid Friction

opposes the motion of an object moving through the fluid increases

Rolling Friction

the friction force of rolling friction that acts on rolling objects

Air Resistance

Fluid Friction acting on an object moving through the air

Gravity

is a force that acts between any two masses

Terminal Velocity

is the constant velocity of a falling object when the force of air resistance equals the force of gravity

Projectile Motion

the motion of a falling object after it is given an initial forward velocity

Inertia

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

Mass

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

Weight

the force of gravity acting on an object

Momentum

the product of an objects mass and its velocity

Gravitational Force

an attractive force that acts between any two masses

Centripetal Force

a center-directed force causes a continuous change in the direction of an object to make it move in a circle