Negative 10 Miles per Hour? 1-1-2 Velocity and Speed.

Slides:

Advertisements

Similar presentations

Aim: How can we distinguish between speed, velocity and acceleration?

Advertisements

Unit 02 Linear Motion Introduction to Motion ~Notes~

Describing Motion: Velocity & Acceleration

Speed vs. Velocity.

Motion in one dimension

Speed and Acceleration

-Speed and Velocity -Uniform Linear Motion Physics Mrs. Coyle

Physics Principles and Problems

EQ 1: What is motion? How do you know you are in motion?

Velocity and Speed.

Displacement and Velocity Chapter 2 Section 1. Displacement Definitions Displacement – The change in position of an object from one point to another in.

Linear Motion. Moving things have two different kinds of motion Linear Motion Harmonic Motion Motion is a change in position in a certain amount of time.

Chapter 2: Motion in One Dimension

1D Kinematics. Distance Time (DT) Graph Slope of a DT graph gives speed D This is a graph of an object not moving. No slope = No speed T.

Graphical Analysis of Motion.

Motion Velocity and Acceleration Frames of Reference The object or point from which movement is determined The object or point from which movement is.

Vocab Concepts AP Problems Problems II Problems Graphical Analysis

Vocab (Leave room for definitions)  Position (x)  Displacement (∆x)= (x f -x i )  Distance (d)  Delta (Δ) – The symbol used to define change Final.

Section 2 Acceleration.  Students will learned about  Describing acceleration  Apply kinematic equations to calculate distance, time, or velocity under.

5 meters in 1 second: 5 m/sec 10 meters in 2 seconds: 5 m/sec 20 meters in 10 seconds: 2 m/sec Biking Speeds:

Ch. 4 Review Game Fun in B206! Pick up Study Guide!

Physics Lab 2 Graphical Analysis of Motion Eleanor Roosevelt High School Chin-Sung Lin.

Physics: Speed and Velocity Average Speed  Rate at which an object moves  Units are in distance / time  Ex. Meters/second, centimeters/hour.

STARTER During a road trip, in 6 hours you travel 300 miles. What is your average velocity? Average Velocity = distance travelled/time taken = 300 miles/6.

Speed and Acceration. distance Total distance an object travels from a starting point to ending point.

Motion Is it moving? How is it measured?. Describing Motion MOTION When an object changes position relative to a reference point we call it MOTION! Reference.

Velocity and Speed. Mechanics Branch of physics that studies motion Two parts Kinematics – describes motion Dynamics – tells why motion occurs.

Relationship between time, displacement, velocity, acceleration. Kinematic.

Speed, Velocity, Displacement, Distance By Tammy Hsu and Viona Chung.

Vectors: Displacement and Velocity. Vectors Examples of vectors: displacement velocity acceleration.

SPEED AND ACCELERATION. MOTION  Motion occurs when an object changes position relative to a reference point  You do not need to see an object in motion.

3.2 Notes - Acceleration Part A. Objectives  Describe how acceleration, time and velocity are related.  Explain how positive and negative acceleration.

l The study of HOW objects move: è Graphs è Equations è Motion maps è Verbal descriptions Kinematics-1.

Displacement, Time, and Velocity

Sketching Motion Graphs Interpreting Motion Graphs Constant Velocity Acceleration Distance/

 You will be able to explain the relationship between motion and a frame of reference  You will be able to relate speed to distance and time  You will.

Section 1.2.  What does slope of the line on a distance- time graph tell us?  What does slope of the line on a speed-time graph tell us?  What does.

KINEMATICS The Study of How Objects Move. Displacement vs. Distance Consider a a turtle on a highway He starts at 2km.

Speed and Velocity Physics Part 8. Speed The distance an object moves in a certain amount of time. A scalar quantity. v Most common units are m/s and.

REVIEW.  Vector quantities have both ____ and _____.  Scalar quantities have ____ only.

Speed: Average Velocity: Instantaneous Velocity:

Motion Speed. Motion  Motion: A change in position Depends on reference point Is the mom moving relative to the dad? Is the mom moving if you were on.

Object’s in Motion Study Guide – Chapter 4 1.Define and explain the difference between speed and velocity. 2.Define and explain the difference between.

Introduction to motion graphs. Measuring Quantities Scalar __________________________ (number only) Examples Distance (20 meters) Speed (10 m/s) Mass.

Motion, Speed, & Velocity. Motion Motion is a change in position (relative to a reference point) *reference point- stationary (still) object.

Speeding Up and Slowing Down? Acceleration.

Motion Quiz. 1. The slope of a position (distance) vs time graph equals what quantity of the motion?

1.2 Speed and Velocity.

One-Dimensional Constant Motion Physics 1. Displacement The change in position of an object is called displacement,  x. Example 1: I go running on the.

Speed Velocity and Acceleration. What is the difference between speed and velocity? Speed is a measure of distance over time while velocity is a measure.

F LIGHT T EST V ELOCITY. V ELOCITY Velocity is the distance an object travels (in a particular direction)* in a given amount of time. Latin: velox, swift.

Describing Motion.

Chapter 2 Velocity and Speed

What is frame of reference?

Non-Constant Velocity

STANDARD 1a Students know position is defined in relation to some choice of a standard reference point and a set of reference directions.

Physics definitions.

Distance -Time Graphs Position -Time Graphs Linear

Vocabulary Distance Velocity Speed Average Speed Displacement

Speed Pages 220 – 223.

Bellwork What is reference point?.

Graphing Motion Walk Around

Speed & Velocity.

Speed & Velocity Chapter 5.2.

Motion in One Dimension

VELOCITY AND ACCELERATION NOTES

Speed Velocity Acceleration

11.2 Speed and Velocity.

Presentation transcript:

Negative 10 Miles per Hour? Velocity and Speed

Velocity vs. Speed VELOCITY –change in DISPLACEMENT occurring over time –Includes both MAGNITUDE and DIRECTION VECTOR SPEED –change in DISTANCE occurring over time –Inclues ONLY MAGNITUDE SCALAR

Average Velocity/Speed Equations average speed or velocity distance or displacement time average speed or velocity two velocities or speeds average speed total distance total time

Example #1 Jim gets on his bike and rides 300 meters west in 60 seconds. What is his average velocity? What is his average speed? v = d / t v = 300 m / 60 s v= 5 m/s WEST v = d / t v = 300 m / 60 s v= 5 m/s v = d / t v = -300 m / 60 s v = -5 m/s

Example #2 Sally gets up one morning and decides to take a three mile walk. She completes the first mile in 8.0 minutes, the second mile in 8.5 minutes, and the third mile in 9.0 minutes. What is her average speed?

Example #3 A car’s speed changes from 20 meters per second to 10 meters per second. What is its average speed?

How Graphs Show Velocity and Speed What is happening in this graph? Motionless Object CONSTANT ZERO SLOPE

How Graphs Show Velocity and Speed What is happening in this graph? CONSTANT POSITIVE SLOPE Moving with CONSTANT positive velocity

How Graphs Show Velocity and Speed What is happening in this graph? INCREASING SLOPE Moving with INCREASING velocity

Find displacement Using v-t Graphs Find distance traveled What can we DO with a v-t graph? Find average velocity How do you use the v-t graph to find AVERAGE VELOCITY? How do you use the v-t graph to find DISTANCE TRAVELED? How do you use the v-t graph to find DISPLACEMENT? Area under the graph Area on TOP and BOTTOM both considered POSITIVE Area under the graph Area on TOP = POSITIVE Area on BOTTOM = NEGATIVE