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# Forces and Motion

TermDefinition
acceleration
average speed
buoyant force
efficiency
force
inclined plane
mass
motion
pascal
reference point
speed
unbalanced forces
weight
air resistance
balanced forces
centripetal force
fluid
friction
inertia
mechanical forces
net froce
Pascal's principal the rule that when a force is applied to a confines fluid, the increase in pressure is transmitted equally to all parts of the fluid
rolling friction friction that occurs when an object rolls over a surface
static friction friction that acts on objects that are not moving
velocity speed in a given direction
work force exerted on an object that causes it to move
fulcrum the fixed point at which a lever pivots
fluid friction friction that occurs as an object moves through fluid
lever a simple machine that consists of a rigid bar that pivots about a fixed point
newton a unit of measure that equals to the force required to accelerate 1 kilogram of mass at 1 meter per second per second
power the rate at which work is done
wedge a simple machine that is an inclined plane that moves
Archimede's principal the rule that the buoyant force on an object is equal to the weight of the fluid the object displaces
Bernoulli's principal the rule that a stream of fast moving fluid exerts less pressure than the surrounding fluid
compound machine a device that combines two or more simple machines
gravity the force that pulls objects towards each other
machine a device that changes the amount of force exerted, the distance over which a force is exerted, or the direction in which force is exerted
momentum the product of an object's mass and velocity
pulley a simple machine that consists of a grooved wheel with a rope or cable wrapped around it
sliding friction friction that occurs when one solid surface slides over another
terminal velocity the greatest velocity and object can achieve
Created by: EmoNinjaBunny

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