Area under Graphs The area under a speed vs time graph gives you the distance the object travelled. Split the graph into shapes you can calculate the area.

Slides:

Advertisements

Similar presentations

Kinematics: What is velocity and acceleration?

Advertisements

Distance Time Graphs Time is always plotted on x axis

Chapter 4 - Motion. Frames of Reference Is this train in motion? How do you know?

PHYSICS Revision Lesson 5 Velocity and Acceleration Distance-Time and Speed-Time Graphs.

Practicing with Graphs

Quick Quiz Consider a football coach pacing back and forth along the sidelines. The diagram below shows several of coach's positions at various times.

1_3 Velocity time graphs Find the area of these shapes. 03 September Find the gradient of these lines yxyx.

Motion, Speed & Acceleration Review

1 of of 43  Distance ( d ) – describes how far an object has travelled from a starting point.  Units for distance are metres (m) or kilometres.

Lesson 1 Reading Guide - Vocab

Distance, Speed and Acceleration

MOTION GRAPHS CREATING AND INTERPRETING GRAPHS. WHAT DO WE KNOW On the paper provided, write down everything you know about graphs and graphing.

Bell Work What is one thing you would like to know about how to graph data?  Adapted from :

Acceleration- Change in Velocity

x y Straight Line Graphs m gives the gradient of the line and.

Velocity - time graph 1. The velocity – time graph shows the motion of a particle for one minute. Calculate each of the following. (a) The acceleration.

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.

Motion in One Dimension (Position vs. Time) Chapter 5.1

Acceleration- Change in Velocity occurs when an object _____________________ occurs when an object ______________ in speed. occurs when an object __________.

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-time graphs. Edexcel Statements Velocity-time graph What story does the graph tell?

Acceleration Acceleration – the rate at which velocity changes  Can be an: Increase in speed Decrease in speed Change in direction.

Warm Up – February 3, Speed-Time Graphs Motion and Acceleration.

What is acceleration? – Probably heard it mean: “the process of speeding up” – More specifically: the rate at which velocity changes. Remember that velocity.

Wednesday October 26, 2015 Thursday October 27, 2015 Unit QuestionWhat role do forces play in the world around us? Guiding Question / Learning Target What.

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.

Motion in One Dimension (Position vs. Time) Chapter 5.1.

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.

How do you describe an object’s position? How do you describe an object’s motion? How do speed and velocity differ? What is acceleration? Describing Motion.

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

Graphs of a falling object And you. Objective 1: Graph a position –vs- time graph for an object falling from a tall building for 10 seconds Calculate.

 “Speed and Velocity”.  Key Questions How do you calculate speed? How can you describe changes in velocity? How can you interpret graphs of distance.

Describing & Measuring Motion 9.1

Speed and Acceleration

Distance, time and speed To work out the speed of an object you need to know: the distance travelled how long it took to travel that distance.

Speed and Acceleration

Speed and Acceleration

Speed and Acceleration

Speed and Acceleration

Speed and Acceleration

Speed and Acceleration

Graphs of Motion Investigation

Bell Ringer R7 Tuesday What is the difference between velocity (speed) and acceleration?

Speed, Velocity, and Acceleration

Chapter 4, Section 2 Graphs of Motion.

Graphing Speed and Acceleration

Chapter 9 Section 3 Acceleration

Acceleration Measuring motion By Vinesh Vora Andrew Jaisingh.

Speed and Acceleration

Speed and Acceleration

Speed and Acceleration

Calculating and Graphing Speed

Distance – Time Graphs Time is usually the independent variable (plotted on the x-axis) Distance is usually the dependent variable (plotted on the y-axis)

The resulting position-time graph would look like this.

Motion Section 3 Acceleration

Speed and Acceleration

Speed and Acceleration

Acceleration & Velocity Time Graphs

Chapter 4, Section 2 Graphs of Motion.

Graphing Motion.

Speed and Acceleration

The resulting position-time graph would look like this.

Speed and Acceleration

Presentation transcript:

Area under Graphs The area under a speed vs time graph gives you the distance the object travelled. Split the graph into shapes you can calculate the area of then add up the areas. Practice COPY

Acceleration and speed-time graphs

Using graphs slopeWe can use the slope of a distance – time graphs to find the speed of an object. straight.To do this the graph line must be straight. Copy

Handout

slope Calculate the slope for each Car The average speed of Car A = The average speed of Car B = The average speed of Car C =

Acceleration Think… what is acceleration? Share with your neighbour What did you think? (Hands up!)

Acceleration video

So acceleration is… The change in speed over time. It is how much the speed has increased (or decreased) in a particular amount of time. COPY

Acceleration, a; ms -2 Acceleration is a measure of how fast an object changes it’s speed. v av at Copy

Speed time graphs The gradient (slope) of a speed time graph give the acceleration of the object. If the line is flat, the speed isnt changing and acceleration= 0 The distance traveled is given by the area under the graph. COPY

So if we have a speed time graph… Between A and B, the speed is increasing with time. Therefore the object is accelerating.

So back to our graph… The slope is given by Rise/run. The rise is speed, and the run is time… The gradient = acceleration

Plot a speed – time graph using this data. Plot the two skiers on the same axes. Draw a staright line of best fit for both skiers (use a ruler). Speed (ms -1 ) time (s)

Use graph to calculate acceleration Time (s)Speed Skier 1 (ms -1 ) Speed Skier 2 (ms -1 ) Copy

Calculate the slope of the two skiers. How quickly was skier 1 accelerating? How quickly was skier 2 accelerating?

So acceleration is… Acceleration = Speed/time