KINEMATICS PART 2 Textbook Chp 2 Pg 27

KINEMATICS (PART 2) Textbook Chp 2, Pg 27 -38

MATH LESSON! Calculus for Kinematics

KINEMATICS GRAPHS Displacement-Time � Gradient → Velocity-Time � Gradient Graph → Acceleration � Area under graph → Displacement � Note: “area under graph” below horizontal axis is negative displacement!

UNIFORM & NON-UNIFORM ACCELERATION Definition: Uniform acceleration is a constant rate of velocity � E. g. Freefall, ignoring air resistance You are required to interpret and describe situations where acceleration is uniform as well as nonuniform (i. e. non-constant acceleration)

INSTANTANEOUS SPEED / VELOCITY / ACCELERATION Instantaneous speed / velocity / acceleration refers to the velocity / acceleration at a single instant in time. Instantaneous speed / velocity is often contrasted against average speed / velocity. In a kinematics graph, this refers to a single point on the graph. E. g. Po and Shifu falling. Even though their velocity changes over time (because they are accelerating), at any one time, their instantaneous velocity are always equal to each other.

READING AND DESCRIBING GRAPHS

SUMMARY Distance vs Displacement Speed vs Velocity Average Speed vs Average Velocity Acceleration Free Fall (ignoring air resistance) Displacement-Time Graph � Gradient → Velocity-Time Graph � Gradient → Acceleration � Area under Graph → Displacement Uniform & Non-Uniform Acceleration Instantaneous Speed / Velocity / Acceleration Reading & Describing of Graphs

EXIT QUIZ!!

EXIT CARD!!

ASSIGNMENT Due Wed 10 Apr **IN CLASS** Textbook: Pg 47 -48 Section A Q 1 -4 Section B Q 2 -4 Estimated time to complete: 45 min Do on Foolscap Paper

END OF LESSON =)