# Unit 3 Vocabulary: Question Preview (ID: 25537)

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Force that opposes the motion of objects that move through the air
a) Air Resistance
b) Free Fall
c) Terminal Velocity
d) Law of Conservation of Momentum

Describes the fall of an object on which only the force of gravity is acting
a) Air Resistance
b) Terminal Velocity
c) Free Fall
d) Law of Conservation of Momentum

The maximum speed an object will reach when falling through a substance
a) Air Resistance
b) Terminal Velocity
c) Free Fall
d) Law of Conservation of Momentum

A force that is directed toward the center of a curved or circular path
a) Friction
b) Field
c) Inertia
d) Centripetal Force

A region of space in which every point has a physical quantity
a) Friction
b) Field
c) Inertia
d) Centripetal Force

Tendency of an object to resist any change in its motion
a) Friction
b) Field
c) Inertia
d) Centripetal Force

Gravitational force exerted on an object
a) Net Force
b) Force
c) Gravity
d) Weight

Force that opposes the sliding motion between two touching surfaces
a) Friction
b) Field
c) Inertia
d) Centripetal Force

Attractive force between two objects that depends on the masses of the objects and the distance between them
a) Net Force
b) Force
c) Gravity
d) Weight

Sum of all the forces that are acting on a object
a) Net Force
b) Force
c) Gravity
d) Weight

A push or pull
a) Net Force
b) Force
c) Gravity
d) Weight

If no external forces act on a group of objects, their total momentum does not change
a) Air Resistance
b) Terminal Velocity
c) Free Fall
d) Law of Conservation of Momentum

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