Motion What is motion? How can we describe motion qualitatively(descriptions) and quantitatively (numbers)?

Slides:

Advertisements

Similar presentations

Motion and Force A. Motion 1. Motion is a change in position

Advertisements

Motion in One Dimension Mr. Dunk Pre-AP Physics Pearland High School.

Table of Contents 2 Chapter 2 Motion.

Graphing motion. Displacement vs. time Displacement (m) time(s) Describe the motion of the object represented by this graph This object is at rest 2m.

Speed vs. Velocity.

Distance Time Graphs Time is always plotted on x axis

Motion Chapter 2: Sections 1 and 2.

8.1 The Language of Motion Some common words used to describe motion include: Distance Time Speed Position How would you describe the motion of the soccer.

WHAT IS SPEED? Speed is how fast an object is moving relative to another object. A frame of reference is necessary to calculate speed. Speed depends on.

Chapter 2 – MOTION IN ONE DIMENSION

Graphical Analysis of Motion.

Motion, Speed, and Velocity

Speed and Acceleration Measuring motion. Measuring Distance  Meter – international unit for measuring distance. = 50 m 1 mm.

Newtonian Revolution The study of Physics begins with Newtonian mechanics. Mechanics is the branch of physics that focuses on the motion of objects and.

Chapter 11: Motion.

MECHANICS MECHANICS – The branch of Physics that deals with the motion of objects and the forces that change this motion. Kinematics – The motion part.

Motion Change in position against some stationary background (frame of reference).

Chapter 11 Motion. Position Position- a place or location –Positions may be described differently by the groups, but the distance/displacement is the.

Motion Graphs Your introductory or title slide should convey the overall “feeling” and focus of your presentation. For instance, I typically present about.

Chapter 2 Motion in One Dimension 2-1 Displacement and Velocity  Motion – takes place over time Object’s change in position is relative to a reference.

Acceleration & Speed How fast does it go?. Definition of Motion Event that involves a change in the position or location of something.

Chapter 2.1 Kinematics. Kinematics is the study of motion Distance is a measure of length only Displacement is the distance traveled in a particular direction.

Kinematics- Acceleration Chapter 5 (pg ) A Mathematical Model of Motion.

Speed and Acceleration

IPS Terminal Velocity Expedition 2: A Universe of Motion.

MOTION - A CHANGE IN POSITION MEASURED BY DISTANCE AND TIME. SPEED - THE RATE AT WHICH AN OBJECT MOVES. VELOCITY - SPEED AND DIRECTION OF A MOVING OBJECT.

Graphing Motion, Speed and Velocity. Graphs of Motion A Distance vs. time graph that is a straight line always means the object moves the same.

Which line represents the greater speed? Graphing motion The greater the speed, the steeper the slope.

Relative Motion Frames of Reference Object or point from which motion is determined Object or point from which motion is determined Most common is the.

TOPIC I.. I. Branch of Mechanics that deals with motion without regard to forces producing it. Branch of Mechanics that deals with motion without regard.

MOTION AND SPEED Chapter 2. Section 1 – Describing Motion A. Motion – when an object changes its position relative to a reference point 1. Distance –

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.

Motion Chapter 11. Distance and Displacement To describe motion accurately and completely a frame of reference is necessary. There can be numerous frames.

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.

Do Now: Distinguish between distance and displacement. Which directions are positive? Which directions are negative?

Introduction to One- Dimensional Motion. Quantities associated with motion Scalar Quantities do not have direction. Scalar quantities only have magnitude.

Introduction to Motion

 Acceleration: When an object changes velocity, it undergoes acceleration.  Acceleration (a) = (v f - v i )/t Change in speed = v f - v i v i = (initial.

Chapter 11: Motion.

Uniform Acceleration in One Dimension: Motion is along a straight line (horizontal, vertical or slanted).Motion is along a straight line (horizontal,

8.1 The Language of Motion Some common words used to describe motion include: Some common words used to describe motion include: –Distance –Time –Speed.

Velocity.   Speed describes the rate of motion of an object. It is a scalar quantity (magnitude only)  Velocity describes the rate of motion AND the.

Introduction to One-Dimensional Motion

Kinematics – the study of the motion of objects without consideration to mass or the forces acting upon objects.

READ PAGES Physics Homework. Terms used to describe Physical Quantities Scalar quantities are numbers without any direction Vector quantities that.

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

Chapter 11: Motion Objectives: Identify frames of reference Distinguish between distance and displacement Interpret distance/time and speed/time graphs.

1.1Motion and Motion Graphs. Kinematics Terminology Scalar vs. Vector Scalar: quantities that have only a size, but no direction – ie: distance, speed.

Acceleration Physics Montwood High School R. Casao.

Chapter 2 Motion and Speed

CH. 2 NOTES Abbreviated. Distance vs. Displacement Distance – how far an object travels (meters) Displacement – straight line path between two points.

Motion Notes. Key Terms 1)Motion: 2)Reference point: The state in which one object’s distance from another is changing. A place or object used for comparison.

Chapter 11: Motion Section 11.3 Acceleration.

Motion graphs Position (displacement) vs. time Distance vs. time

Motion in One Dimension - velocity. Motion – A change in position Motion.

Acceleration. Definition Any change in velocity is acceleration What are the possible causes of acceleration? Speeding up Slowing down Changing direction.

Lecture 4 Motion and Velocity Ozgur Unal

Motion Graphs Learning Target: Be able to relate position, velocity, and acceleration quantitatively and qualitatively.

Starter Please Study Your Quiz will cover: Density, Speed, Velocity, and Acceleration,

Describing Motion.

Graphing Speed and Acceleration

rate at which velocity changes

Speed Velocity Acceleration Freefall

Speed Acceleration Graphs

Kinematics: Displacement and Velocity

Speed Velocity Acceleration

Velocity-Time Graphs for Acceleration

Graphing Motion.

Motion in One Dimension

Presentation transcript:

Motion What is motion? How can we describe motion qualitatively(descriptions) and quantitatively (numbers)?

Motion Definition: Change in position Motion is relative-It is described compared to a REFERENCE POINT. EX: You sitting in a moving car -you relative to the car -you relative to objects outside the car -you relative to the other 7 planets

Qualitative Description of Motion 1.Uniform motion- constant velocity/straight path 2. Accelerated motion- motion that is changing speed or direction 3. Circular motion- constant velocity but is constantly changing direction

Quantitative Description of Motion SCALAR VECTOR QUANTITIES MAGNITUDE ONLY MAGNITUDE AND DIRECTION -Distance -Displacement -Speed -Velocity -Time -Acceleration -Mass -Weight

Distance vs. Displacement DISTANCE-Total path traveled DISPLACEMENT-Change in position (final position-initial position) that points in the direction of final destination

Speed vs. Velocity SPEED- Distance/Time 60 km/hr VELOCITY- Displacement/Time 60 km/hr WEST

Average Speed/Velocity Average Speed= Total Distance/Total Time Average Velocity

Instantaneous Speed

Acceleration Acceleration-Change in velocity in a given time -Speeding up Positive acceleration -Slowing down Negative acceleration Deceleration -Changing direction

Sample Position vs Time Graph Position vs time for Minivan’s Trip horizontal line means position isn’t changing, no velocity positive slope on the graph describes direction negative slope on the graph describes direction. above zero: the object is moving in + direction below zero:object is moving in - direction slope = velocity

Look at the graph. It shows how three runners ran a 100-metre race. 1. Which runner won the race? 2. Which runner stopped for a rest? 3. How long did he stop to rest? 4. How long did Bob take to complete the race? 5. Calculate Albert's average speed.

Graphing Motion Positive position Negative constant velocity Positive position Positive constant velocity D T D T

Graphing Motion Negative position Negative constant velocity Negative position Positive constant velocity D T D T

Sample Velocity vs Time Graph Velocity of an object traveling in a straight line the slope of the line is the acceleration of the object horizontal line on the graph means constant velocity. Constant velocity can be zero, but is not always zero. The object may or may not be moving. positive slope on the graph means that the velocity is increasing negative slope on the graph means that the velocity is decreasing