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These are a set of card I use to study for my science final.

Acceleration

an increase in speed

Air resistance

the fluid friction experienced by objects falling through the air

Average Speed

Total distance divided by total time

Balanced Forces

equal forces acting on an object in opposite directions

Displacement

the change in position of an object

Force

force into or from an action or state.

Friction

the resistance encountered when one object is moved in contact with another

Instantaneous Speed

the speed of an object at one instant of time

Net Force

the combination of all forces acting on an object

Sliding Friction

friction that occurs when one surface slides over another

Speed

distance travelled per unit time

Static Friction

the friction that acts on objects that are not moving

Unbalanced Forces

Forces that produce a nonzero net force, which changes an object's motion

Vector

a variable quantity that can be resolved into components

Velocity

speed in a given direction

Centripetal Acceleration

acceleration toward the center of a curved or circular path

Centripetal Force

the inward force on a body moving in a curved path around another body

First Law of Motion

An object in motion will stay in motion unless it is acted upon by an outside force.

Gravity

The force of attraction between all masses in the universe.

Inertia

the tendency of an object to resist any change in its motion

Law of Conservation of Momentum

the rule that the total momentum of objects in an interaction does not change

Momentum

an impelling force or strength

Second Law of Motion

the rate of change of momentum is proportional to the imposed force and goes in the direction of the force

Third Law of Motion

action and reaction.

Weight

a system of units used to express how heavy something is.

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