A CCELERATION G RAPHS Pictures worth even MORE words now!

Slides:

Advertisements

Similar presentations

Acceleration Acceleration Velocity-time graph Questions.

Advertisements

IP2.6.4 Drawing velocity-time graphs © Oxford University Press 2011 Drawing velocity-time graphs.

Distance Time Graphs Time is always plotted on x axis

Motion, Force, and Speed! Coach Dave Edinger J. C. Booth Middle School

Interpreting Motion Graphs. Position vs. Time Graphs StationaryConstant velocity in the positive direction Constant velocity in the negative direction.

Preliminary Questions 2B.1.1: Position, Velocity, Acceleration Plots The plot to the right represents the motion of an object. During period 1, the object’s.

Things to know!. Velocity-Time Graphs A velocity-time (V-T) graph shows an object’s velocity as a function of time. A horizontal line = constant velocity.

Velocity Time Graph.

IF WE MEASURE DISTANCE AND TIME, WE GET:

Velocity –Time Graphs.

Motion Graphs.  Position is on the vertical axis  Time is on the horizontal axis  Slope (rise/run or Δy/Δx) = velocity  A curved graph shows acceleration.

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

Speed vs. Time Graphs.

Motion Graphs Review. Interpret The Graph Below:

Forces and Motion Lesson 3 – Interpreting Motion Graphs Ms. Newsome and Ms. Tripp 8 th Grade Science.

Acceleration- Change in Velocity

Diagrams and Motion Graphs.  The slope is equal to the acceleration.  Because we only consider constant acceleration, v/t graphs will always be straight.

Velocity-Time Graphs What is it and how do I read one?

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.

Chapter 4. Acceleration is the rate at which velocity changes. **Note: because acceleration depends upon velocity, it is a vector quantity. It has both.

Do you know your x-t graphs?. x t Slowing Down (in the positive direction) Negative Acceleration 

VELOCITY TIME GRAPHS. The Velocity vs. Time Graph Velocity (m/s) Time (s) ∆v ∆t Velocity vs. time.

Graphing Speed Moving from Home.

Motion Graphs Let’s go over the basics.. Acceleration vs. time graphs (a vs. t) These graphs are boring, and will only have a straight line above the.

 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.

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

Velocity and Acceleration. Velocity Describes both speed and direction of an object. Describes both speed and direction of an object. How can an object.

Interpreting Motion Graphs. Position vs. time graphs The slope of the graph is equal to the velocity The slope of the graph is equal to the velocity If.

Acceleration in Graphs 9/27/2011. Position vs. Time Graph For this graph, where is the velocity positive? Where is the velocity zero? Where is the velocity.

Graphing Motion. Graphing Data Independent axis: the x-axis- horizontal Dependent axis: the y-axis- vertical The y values depend on the x values.

Acceleration a change in velocity ( speed or direction or both ) over time –speeding up or slowing down –changing direction moving in a circle is always.

Speeding Up and Slowing Down? Acceleration.

NOTECARDS Turn each slide into a flashcard – title is the “blank side” and text box is the “lined side”

Chapter 11: Motion Section 11.3 Acceleration.

Motion graphs pg.11. Create and interpret graphs of position versus time. Calculate velocity from the slope of the position vs. time graph. Create and.

Motion Graphs (p in notebook). Interpret The Graph Below: (As time increases, ….)

Meaning of Graphs.

Position-Time and Velocity-Time Graphs

Graphing Velocity and Distance vs. Time graphs

Distance vs. Time Graphs

9.2 Calculating Acceleration

Sometimes speed changes.

9.2 Calculating Acceleration

GRAPHING ACCELERATION

Acceleration—Changes in Velocity (cont.)

Position-Time and Velocity-Time Graphs

9.2 Calculating Acceleration

1. Distance vs. time graphs

Pictures worth even MORE words now!

Position-Time and Velocity-Time Graphs

Graphing Velocity and Distance vs. Time graphs

9.2 Calculating Acceleration

Essential Question: How is energy conserved?

Section 3 – pg 350 Acceleration

Acceleration Chapter 2.4.

Motion Part 2: Distance-Time Graphs.

The resulting position-time graph would look like this.

Chapter 4, Section 3 Acceleration.

Position vs Time Graphs

Created by Mrs. Bertoson Feb 2012

Velocity-Time Graphs for Acceleration

Velocity vs Time Graphs – Notebooks

Acceleration & Velocity Time Graphs

Position vs Time Graphs

Motion in One Dimension

The resulting position-time graph would look like this.

Presentation transcript:

A CCELERATION G RAPHS Pictures worth even MORE words now!

RECALL… Motion can be graphed Acceleration is merely a change in speed over time Knowing this, what do you think the two axis of our acceleration graphs are going to be?

A CCELERATION G RAPHS The vertical axis (y) will be velocity (m/s) The horizontal axis (x) will be time (s) SLOPE = Acceleration

G RAPHING AND A CCELERATION Which of these is a velocity graph, and which is an acceleration graph? How can you tell?

V ELOCITY VS T IME G RAPHS Velocity v. Time graph shows how velocity changes over time ANY slope at all shows an acceleration

DIFFERENT SLOPES… A POSITIVE slope means there is POSITIVE acceleration Positive acceleration means speeding up Which of these lines has a greater acceleration? B – It has a greater slope

DIFFERENT SLOPES… A slope of ZERO shows an acceleration of 0m/s 2 This just means there is a constant speed Slope of zero = horizontal line Which of these lines has a greater acceleration? Neither – Both are zero Which of these lines has a greater velocity? A – It has velocity of 130m/s

DIFFERENT SLOPES… A NEGATIVE slope means there is NEGATIVE acceleration Negative acceleration means slowing down Slowing down = DECELERATING Which of these lines has a greater deceleration? A – It has a greater slope

S LOPES : R ECAP Line slopes upLine slopes down Velocity is increasingVelocity is decreasing Positive accelerationNegative acceleration Straight Horizontal line Constant velocity No acceleration

C ALCULATING A CCELERATION What is the formula for acceleration? What is the velocity at 1 s? What is the velocity at 4 s? What is the acceleration between 1 and 4 seconds? A = (Vf-Vi) t = (2m/s – 8m/s) 3 s - = - 6 m/s= -2 m/s 2 - 3s

P UTTING IT ALL TOGETHER  Tell me what is happening for each line A – Decelerating B – Constant velocity (0 m/s) AND no acceleration. This is STOPPED. C – Acceleration D – Constant velocity (15 m/s) AND no acceleration. This is NOT STOPPED