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chapter 3 sciencevoc
| Question | Answer |
|---|---|
| is a push or a pull | force |
| is the sum of all of the forces acting on an object | net force |
| is the force that opposes the sliding motion of two surfaces that are touching each other | friction |
| is an attractive force between any two objects that depends on the masses of the objects and the distance between them | gravity |
| is an region of space that has a physical quantity at every point | field |
| the gravitational force exerted on an object | weight |
| states that an object moves at a constant velocity unless an unbalanced force acts on it | newtons first law of motion |
| is the tendency of an object to resist any change in motion | inertia |
| 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 second law of motion |
| states the when one object exerts a force on a second object the second object exerts a force on the first that is equal in strengths and opposite in direction | newtons third law of motion- |
| is a friction like force that opposes the motion of objects that move through the air | air resistance |
| is the maximum speed an object will reach when falling through a substance such as air | terminal velocity |
| if gravity is the only force acting on an object | free fall |
| is a force exerted toward the center of a curved path | centripetal force |
| the total momentum of an isolated system remains constant if no external forces act on it | law of conservation of momentum - |
Created by:
Dooster