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  Kinematics

Kinematics is the

  

Kinematics

_{Describing the motion of objects using:}

  The motion of real-world objects

  

Lesson 1

Describing Motion with Words

Distance and Displacement

   Distance is a scalar quantity which refers to " how

much ground an object has covered " during its motion.

  Speed and Velocity

   Speed

  Speed and Velocity

Example

  

The diagram below shows the position of a cross-country

skier at various times. At each of the indicated times, the

skier turns around and reverses the direction of travel. In

  Lesson 2 Describing Motion with Diagrams

  Ticker Tape Diagrams

  Ticker Tape Diagrams

  Ticker Tape Diagrams

  Vector Diagrams

  Vector (Motion) Diagrams

Vector Diagrams

  

Vector diagrams are diagrams which depict

the direction and relative magnitude of a vector

  Vector Diagrams

  

Describing Motion with Position vs. Time

Graphs

  The Meaning of Shape for a p-t

  

Describing Motion with Position vs. Time

Graphs

  

Now consider a car moving with a rightward

(+), changing velocity - that is, a car that is Describing Motion with Position vs. Time Graphs Now consider a car moving at a constant

  

Describing Motion with Position vs. Time

Graphs

  Determining the Slope on a p-t Graph The Meaning of Slope for a v-t Graph

Consider a car moving with a constant velocity

of +10 m/s. A car moving with a constant velocity has an acceleration of 0 m/s/s.

  The Meaning of Slope for a v-t Graph

  

Now consider a car moving with a changing

velocity. A car with a changing velocity will have an acceleration. The Meaning of Slope for a v-t Graph

  

Lesson 4 : Describing Motion with Velocity vs. Time

Graphs

  The Meaning of Shape for a v-t Graph Consider a car moving with a constant, rightward (+)

  Lesson 4 : Describing Motion with Velocity vs. Time Graphs

  

Now consider a car moving with a rightward (+),

changing velocity - that is, a car that is moving

  Determining the Slope on a v-t Graph

  

Let's begin by considering the velocity vs. time

graph below

  

Describing Motion with Position vs.

Time Graphs

  

Describing Motion with

Position vs. Time Graphs

  

Lesson 4 : Describing Motion

with Velocity vs. Time

Graphs

  

Lesson 4 : Describing Motion

with Velocity vs. Time Graphs

  The Meaning of Shape for a v-t Graph

  Relating the Shape to the Motion

  Relating the Shape to the Motion

  Relating the Shape to the Motion

  

Relating the Shape to the

Motion

  Relating the Shape to the Motion

  Relating the Shape to the Motion Determining the Area on a v-t Graph

  Determining the Area on a v-t Graph Determining the Area on a v-t Graph