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PVAPhysSciencech3

PVA Phys Science ch3 Vocab

TermDefinition
Force is a pull or push.
Netforce is the sum of all of the forces acting on an object.
Friction is the force that opposes the sliding motion of two surfaces that are touching each other.
Gravity is an attractive force between any two objects that depends on the masses of the object and the distance between them.
Field is a region of space that has a physical quantity (such as a force) at every point.
Weight the gravitational force exerted on an object
Newton's first law of motion states that an object moves at a constant velocity unless an unbalanced force acts on it.
Inertia is the tendency of an object to resist any change in its motion.
Newton's second law of motion states an object's acceleration is in the same direction as the net force on the object and is equal to the net force exerted on it divided by its mass.
Newton's third law of motion states that when one object exerts a force on a second object, the second object exerts a force on the first that is equal in strength and opposite in direction.
Air resistance is a friction-like force that opposes the motion of objects that move through the air.
Terminal velocity is the maximum speed an object will reach when falling through a substance, such as air.
Free fall gravity is the only force acting on an object.
Centripetal force is a force exerted toward the center of a curved path.
Law of conservation of momentum if no external forces act on a group of objects, their total momentum does not change.
Created by: user-1736374
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