# FHSST Physics/Vectors/Summary

Vectors The Free High School Science Texts: A Textbook for High School Students Studying Physics. Main Page - << Previous Chapter (Waves and wavelike motion) - Next Chapter (Forces) >> PGCE Comments - TO DO LIST - Introduction - Examples - Mathematical Properties - Addition - Components - Importance - Important Quantities, Equations, and Concepts

# Summary of Important Quantities, Equations and Concepts

 Quantity Symbol S.I. Units Direction Displacement ${\overrightarrow {s}}$ m yes Velocity ${\overrightarrow {u}}$ ${\overrightarrow {v}}$ m.s−1 yes Distance d m - Speed v m.s−1 - Acceleration ${\overrightarrow {a}}$ m.s−2 yes

Vector: A vector is a measurement which has both magnitude and direction.

Displacement: Displacement is a vector with direction pointing from some initial (starting) point to some final (end) point and whose magnitude is the straight-line distance from the starting point to the final point.

Distance: The distance traveled is the length of your actual path.

Velocity: Velocity is the rate of change of displacement with respect to time.

Acceleration: Acceleration is the rate of change of velocity with respect to time.

Resultant: The resultant of a number of vectors is the single vector whose effect is the same as the individual vectors acting together