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A measure of the force of gravity on an object


a force that opposes motion


motion of a falling object when the only force acting on the object is gravity

free fall

force that pulls objects towards eachother


force that causes objects to move in a circular motion

centripetal force

the fluid friction expierienced by objects falling through the air

air resistance

for every action there is an equal and opposite reaction

action/reaction forces

the amount of particles in an object


the total momentum of any group of objects remains the same or is conserved unless acted upon by an outside force

conservation of momentum

causes air borne objects to follow a curved path because they move forward while gravity brings them down

projectile motion

the total amount of force acting on an object

net force

cause motion in objects to stop

balanced forces

cause objects to start stop or change direction

unbalanced forces

when an object moves through a fluid

fluid friction

when an object rolls over a surface

rolling friction

when 2 solid objects slide across each other

sliding friction

an object at rest will remain at restunless acted upon by an unbalanced force and an object moving at a constant velocity will continue moving at a constant velocit, unless it is acted upon by an unbalanced force another name is Law of Inertia

Newton's first law of motion

An objects mass and the amount of net force acting on the object contribute to how much an object can accelerateIe

Newton's second law of motion

one object exerts a force on another object then the second object exerts an equal force in the opposite direction of the first object

Newton's third law of motion

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