Motion Review. What is the difference between an independent and dependent variable?

Slides:

Advertisements

Similar presentations

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

Advertisements

Forces & Motion Review.

A graph of the instantaneous velocity of an object over a specified period of time Time is independent (x-axis) Velocity is dependent (y-axis) Remember,

Measuring MOTION.

Objectives: 1.Be able to distinguish between distance and displacement 2.Explain the difference between speed and velocity 3.Be able to interpret 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.

Distance/Time Graphs A distance/time graph shows how far an object travels over a certain time. Always pay attention to the titles on the x axis and the.

Distance/Time Graphs A distance/time graph shows how far an object travels over a certain time. Always pay attention to the titles on the x axis and the.

Practicing with Graphs

Motion Graphing Position vs. Time Graphs

Graphical Analysis of Motion.

GRAPHICAL ANALYSIS OF MOTION

Describing Motion with Position vs. Time Graphs The specific features of the motion of objects are demonstrated by the shape and the slope of the lines.

Acceleration Chapter 2 Section 2.

Science Starter! Complete the worksheet “Science Starter!” (on teacher’s desk).

Forces & Motion. Describe Speed A way to describe motion –Average speed - Rate of motion calculated by dividing the distance traveled by the amount of.

Forces & Motion Review. Describe Acceleration A change in velocity – which may be: –A change in speed Starting Stopping Speeding up Slowing down –A change.

Motion, Speed & Acceleration Review

Describe Speed A way to describe motion –Average speed - Rate of motion calculated by dividing the distance traveled by the amount of time it takes to.

Graphing a Change in Motion. Motion Motion is when the distance from one object to another is changing Distance is the entire path an object travels.

Linear Kinematics : Velocity & Acceleration. Speed Displacement - the change in position in a particular direction and is always a straight line segment.

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.

Motion Graphs Review. Interpret The Graph Below:

Forces & Motion Tutorial. Prerequisites for this tutorial Knowledge of: Motion Speed Displacement Velocity.

Forces & Motion Tutorial. Gravity An attraction between any two objects –All objects that have mass have gravity –Check out the website below: –

Forces & Motion. Describe Acceleration A change in velocity – which may be: –A change in speed Starting Stopping Speeding up Slowing down –A change in.

Acceleration- Change in Velocity

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.

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.

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

Speed, Velocity, and Acceleration

2.1 to 2.3 Displacement, Velocity, and Acceleration.

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

Describing Motion What is speed? Think of the fastest and slowest speed limits near the school, on the roads in front of your homes, or on a highway.

Scalars vs. Vectors Scalar – a quantity that has a magnitude (size) but does not have a direction. Ex. # of objects (5 apples), speed (10 m.p.h.), distance.

Motion Graphs Position vs. time. Vocabulary Position Where you are relative to the origin (reference point/observer) Distance The total length of how.

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

Graphs. Topic Overview The motion of an object can be represented by two types of graphs (x, v) 1) Displacement vs. Time graphs Tells you where the object.

Coordinates You will need your graph worksheet Interpret the Graph Below: The graph shows an object which is not moving (at rest). The distance stays.

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

Chapter 2 Motion and Speed

Chapter 11: Motion Section 11.3 Acceleration.

Motion Graphs. Interpret The Graph Below: The graph shows an object which is not moving (at rest). The distance stays the same as time goes by because.

Distance and Velocity Chapter 11.1 Notes. Objects in Motion Motion is all around us—from a car driving in a straight line to a satellite circling the.

Forces & Motion Review. Describe Acceleration A change in velocity – which may be: –A change in speed Starting Stopping Speeding up Slowing down –A change.

Interpret The Graph. The graph shows an object which is not moving (at rest). The distance stays the same as time goes by because it is not moving.

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

Kinematics Graphical Analysis of Motion. Goal 2: Build an understanding of linear motion. Objectives – Be able to: 2.04 Using graphical and mathematical.

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

Velocity and Speed Graphically

Motion Graphs Position-Time (also called Distance-Time or Displacement-Time) d t At rest.

Graphical Analysis Of Motion

Position vs. time graphs Review (x vs. t)

Non-Constant Velocity

Speed, Velocity, and Acceleration

Forces & Motion.

September 10th SWBAT create & analyze position vs. time graphs.

Aim: How do we analyze position-time or Displacement-time graphs?

Distance-time graphs.

Forces & Motion.

Velocity-Time Graphs for Acceleration

Interpret The Graph.

Presentation transcript:

Motion Review

What is the difference between an independent and dependent variable?

Which is the D.V. and I.V.? Look at the following images below, what are the observables and measureables?

What are your Observables? Possibilities: Size Color Texture

What are your Measureables? Possibilities: Circumference Area Radius Diameter

Write a Possible Question and Identify the Dependent & Independent Variables Independent Variable: Ex: Area Dependent Variable: Ex: Circumference Question: Ex: How does circumference of a circle depend on area?

Linearizing Data Does the graph shown below need to be linearized? Why or why not?

How would you linearize this data? To linearize: Y = 1/X Or P = 1/V

What is the difference between distance, displacement, and position?

What is the difference between velocity and speed?

What are the equations and units for: Speed and Average Velocity? Speed = Distance/ Time Average Velocity= ∆x/∆t = change in displacement/ change in time Units: m/s

Calculate This Speed A football field is about 100 m long. If it takes a person 20 seconds to run its length, how fast was the football player running?

Calculate this Speed: A football field is about 100 m long. If it takes a person 20 seconds to run its length, how fast was the football player running? Speed = Distance ÷ Time Speed = 100 m ÷ 20 s Speed = 5m/s Remember to include the UNITS!!

What is the difference between average and instantaneous velocity? Average velocity is the overall change in displacement over time. Instantaneous velocity tells you how fast an object is going at a specific time. Instantaneous velocity is the slope of the tangent line on a position vs. time graph.

Interpret The Graph Below: Position

Interpret The Graph Below: The graph shows an object which is not moving (at rest). The distance stays the same as time goes by because it is not moving. Position

Interpret The Graph Below: Position

Interpret The Graph Below: The graph shows that the objects distance increases as time passes. The object is moving and so it has velocity. The straight line shows it is a constant (not changing). Position

Interpret The Graph Below: Position

Interpret The Graph Below: Just like the previous graph, this graph shows an object moving with constant velocity Position

Interpret The Graph Below: Position

Interpret The Graph Below: In the first part of the graph the object is moving with constant velocity. In the second part of the graph the object is at rest (not moving). In the third part the object is again moving with constant velocity. Position

What is Acceleration?

Describe Acceleration A change in velocity – which may be: –A change in speed Starting Stopping Speeding up Slowing down –A change in direction More

Describing Acceleration Negative Acceleration describes an object with a negative change in velocity over time. This could mean that the object is slowing down or that it is traveling in a negative direction. Positive Acceleration describes an object that has a positive change in velocity over time. This could mean that an object is speeding up.

Interpret The Graph Below: Position

Interpret The Graph Below: The curve in the graph shows that the objects velocity is changing as time passes. This is acceleration. Position

Interpret The Graph Below:

The graph shows that the objects velocity does not change as time passes. It shows constant velocity.

Interpret The Graph Below:

The graph shows that the objects velocity is increasing as time passes – it is accelerating. The straight line shows that it is constant acceleration.

What would the acceleration vs. time graph look like? Acceleration (m/s 2 )

Relationships The slope of a position vs. Time graph: Velocity The slope of a velocity vs. Time graph: Acceleration The area under a velocity vs. time graph: Change in Displacement