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Science Ch. 10 Vocab

The vocabulary words for chapter 10 in the Physical Science book.

force a push or pull
newton SI unit for magnitude, or strength, of a force
net force combination of all forces acting on an object
unbalanced forces causes the velocity of an object to change
balanced forces equal forces acting on one object in opposite directions
friction a force that two surfaces exert on each other when they rub against each other
static friction the friction that acts on objects that are not moving
sliding friction the friction that acts on objects when two solid surfaces slide over each other
rolling friction when an object rolls across a surface
fluid friction when a solid object moves through a fluid
gravity a force that pulls objects toward each other
mass the measure of the amount of matter in an object
weight the gravitational force exerted on a person or object at the surface of the planet
free fall when the only force acting on an object is gravity
air resistance a type of fluid friction that acts on objects falling through air
projectile an object that is thrown
compression an elastic force that squeezes or pushes matter together
tension an elastic force that stretches or pulls matter apart
inertia the tendency of an object to resist a change in motion
momentum a characteristic of a moving object that depends on both the mass and the velocity of the object
law of conservation of momentum a scientific law that states in the absence of outside forces, the total momentum of objects that interact does not change
satellite any object that orbits another object in space
centripetal force any force that causes an object to move in a circular path
Created by: yosf