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Ch. 3 Forces

Teacher: Mrs. Donovan
Across
Objects appear to be weightless in a ____ fall.
Newton's ____ law of motion- when an object exerts a force on a second object, the second object exerts a force on the first object.
The attractive force between all objects that have mass
_____ Force- the force that causes and object to move in a circular path.
The combination of all the forces acting on the object is the ____ force.
Law of Conservation of ______ states that if objects exert forces only on each other, their total momentum is conserved.
Newton's ____ law of motion- states that the acceleration of an object depends on its mass and the net force exerted on it.
A region of space that has a physical quantity
Down
_____ resistance is a force that opposes an object's motion through the air.
Newton's ____ law of motion-states that the motion of an object at rest or moving with constant velocity will not change unless an unbalanced force acts on it.
The tendency of an object to resist any change in its motion.
Push or pull on an object
The force that opposes the sliding motion of two surfaces that are touching each other.
The maximum speed an object will reach when falling through a substance such as air is _____ velocity.
The gravitational force exerted on an object.