# PHYSICS CHAP 2 VOCAB

 the vector sum of two or more vectors resultant a physical aspect that has only magnitude (mass) scalar quantity the force exerted by the pull of a taut rope or spring tension the perpendicular vectors whose sum is the resultant vector component vector the force of mutual attraction between two masses, especially an object and the earth gravity an arrow that represents the magnitude of a physical quantity though its length and points in the direction in which the physical aspects acts vector a downward force of an object due to earth's gravity weight the process of changing vector  into its perpendicular component vectors resolution a wind blowing in a direction opposite that of an aircraft's motion headwind two lines or vectors that form a 90 degree angle where they cross perpendicular  the force resulting from fluid friction between an aircraft and the air through which it is moving and that opposes an aircraft's motion drag the amount or size of quantity  magnitude  the force pushing an aircraft forward due to the actions of the aircraft's engines thrust a physical aspect that has both magnitude and direction, such as force vector quantity  force that results from the motion or pending motion of one surface across another and that resists that motion friction up, down, away, toward direction a wind blowing in the same direction as the aircraft's motion tailwind an SI unit for measuring force newton perpendicular to the earth's surface vertical the force on an object in contact with a surface that is perpendicular to the supporting surface normal force a method for adding vectors graphically parallelogram rule the downward force on an object due to earth's gravity weight the vertical upward force supporting an aircraft resulting from the motion of air passing over the aircraft's wings lift a wind blowing horizontally and perpendicular to the aircraft's motion crosswind an SI unit for measuring mass kilogram Authoremilyyx14 ID179980 Card SetPHYSICS CHAP 2 VOCAB Descriptionphysics Updated2012-10-26T01:31:51Z Show Answers