Mechanics

Front 1

Acceleration

Back 1

The time rate of change of velocity; a vector quantity.

Front 2

Centripetal Acceleration

Back 2

The acceleration that results in the uniform motion of an object in a circular path; a vector quantity directed toward the center of curvature.

Front 3

Centripetal Force

Back 3

The force needed to keep an object moving in a circular path; a vector quantity directed toward the center of curvature.

Front 4

Closed System

Back 4

A group of objects, not acted upon by any external force.

Front 5

Coefficent of Friction

Back 5

The ratio of the frictional force to the normal force.

Front 6

Displacement

Back 6

The change in position of an object described by the vectore that begins at the initial position of the object and ends at its final position.

Front 7

Distance

Back 7

The total length of the path that an object travels; a scalar quantity.

Front 8

Equilibrium

Back 8

State of an object when the net force acting on it is zero.

Front 9

Free Fall

Back 9

The ideal falling motion of an object acted upon by the force of gravity.

Front 10

Free-body Diagram

Back 10

A sketch, or scale drawing, that shows all the forces acting concurrently on an object.

Front 11

Friction

Back 11

The force that opposes the relative motion of two objects in contact; a vector quantity.

Front 12

Gravitational Field

Back 12

A region in space where a test particle would experience a gravitational force.

Front 13

Gravitational Field Strength

Back 13

The force per unit mass at a given point in a gravitational field; a vector quantity.

Front 14

Gravitational Force

Back 14

The attractive force between two objects due to their masses; a vector quantity.

Front 15

Gravity

Back 15

The force between the mass of Earth and the mass of any object in the vicinity of Earth; a vector quantity.

Front 16

Horizontal Component

Back 16

A component velocity vector whose direction is parallel to the horizon.

Front 17

Impulse

Back 17

The product of the average force applied to an object and the time during which the force acts; a vector quantity.

Front 18

Inertia

Back 18

The resistance of an object to a change in its motion; directly proportional to object's mass.

Front 19

Instantaneous Velocity

Back 19

The velocity of an object at any particular instant in time; a vector quantity.

Front 20

Kinetic Friction

Back 20

The friction of motion between objects in contact; a vector quantity.

Front 21

Kilogram

Back 21

The fundamental SI unit of mass.

Front 22

Law of Conservation of Momentum

Back 22

States that energy can be neither created nor destroyed.

Front 23

Linear Motion

Back 23

An object's change of position along a straight line.

Front 24

Mechanics

Back 24

The branch of physics that deals with forces and their effects in producing and changing motion.

Front 25

Meter

Back 25

The fundamental SI unit of length.

Front 26

Momentum

Back 26

The product of an object's mass and velocity; a vector quantity.

Front 27

Net Force

Back 27

The vector sum of the concurrent forces acting oin an object.

Front 28

Newton

Back 28

The force that imparts an acceleration of one meter per second squared to a one kilogram mass.

Front 29

Normal Force

Back 29

The force pressing two contracting surfaces together; on a horizontal surface, the normal force is equal in magnitude but opposite in direction to the weight of an object resting on the surface; a vector quantity.

Front 30

Pendulum

Back 30

A mass (bob) attached to one end of a string or wire that is attached at the other end to a pivot point.

Front 31

Period (of a Pendulum)

Back 31

The time required for a displaced pendulum to complete one cycle of motion; a scalar quantity.

Front 32

Resolution of forces

Back 32

The process of determining the magnitude and direction of the components of a force.

Front 33

Resultant

Back 33

The single vector that is equivalent to the combined effect of two or more vectors.

Front 34

Second

Back 34

The fundamental SI unit of time.

Front 35

Speed

Back 35

The distance that an object moves in a unit of time; a scalar quantity.

Front 36

Static Friction

Back 36

The force that opposes the start of motion; a vector quantity.

Front 37

Tangent

Back 37

A line on a graph whick passes through a point and has a slope equal of the curve at that point.

Front 38

Unbalanced Force

Back 38

A nonzero net force acting on an object; a vector quantity.

Front 39

Uniform Circular Motion

Back 39

The motion of an object traveling in a circular path at constant speed.

Front 40

Uniform Motion

Back 40

The motion of an object moving at constant speed.

Front 41

Vacuum

Back 41

A region of empty space.

Front 42

Vector Component

Back 42

(of a force) The two or more concurrent forces whosee vector sum is the acting force.

Front 43

Velocity

Back 43

The time rate of change of an object's displacement; a vector quantity.

Front 44

Vertical Component

Back 44

(of velocity) A component velocity vector whose direction is at right angles to the horizon.

Front 45

Weight

Back 45

The gravitational force with which a planet attracts a mass; a vector quantity.