Newton’s 2nd Law How does a cart change its motion when you push and pull on it? You might think that the harder you push on a cart, the faster it goes.

Slides:

Advertisements

Similar presentations

USING GRAPHICAL ANALYSIS Make sure you have the data ready. Answer these questions: 1) What quantity are you going to plot on the x axis? What are the.

Advertisements

Newtons Second Law Unit 6.4.

CBA #1 Review Graphing Motion 1-D Kinematics Projectile Motion Circular Motion Gravity Graphing Motion 1-D Kinematics Projectile Motion Circular.

Newton’s Second Law r1.04.

The Law of Inertia. Objects at rest remain at rest unless acted upon by an outside force. Objects in motion will remain in motion unless acted upon by.

Analyzing Bivariate Data With Fathom * CFU Using technology with a set of contextual linear data to examine the line of best fit; determine and.

Motion and Force. Motion and Force Chapter Three: Motion 3.1 Position and Velocity 3.2 Graphs of Motion 3.3 Acceleration.

Distance, Speed and Time Graphs

Graphical Representation of Velocity and Acceleration

Comparing Forces © Copyright 2014 – all rights reserved

Newton’s Third Law Lab.

Force of Kinetic Friction Pre-Lab What factors affect the amount of friction between two surfaces? Surface Area Velocity Types of Surfaces.

Using the “Clicker” If you have a clicker now, and did not do this last time, please enter your ID in your clicker. First, turn on your clicker by sliding.

This Week’s Lab 11/13/13 – 11/15/13. Title [Title – you need to come up with one] Your name and period.

Physics 218: Mechanics Instructor: Dr. Tatiana Erukhimova Sections 818, 819, 820, 821 Lecture 10.

Starter What is the spring constant for this spring?

Creating and Graphing Linear Equations in Two Variables ~Adapted from Walch Education.

Physics Chapter 4: Forces and the Laws of Motion

Forces in Two Dimension

Comparing P-T graphs and V-T graphs. P-T GRAPHSV-T GRAPHS  Also called distance time graphs  Time always on the x-axis, position always on the y- axis.

CBA #1 Review Graphing Motion 1-D Kinematics

How do scientists show the results of investigations?

Interpreting Motion Graphs {Forces and Motion. Distance vs Time Graphs The motion of an object is defined by its change of position over a period of time.

Forces in One Dimension: Force and Motion 4.1

Graphs Graphs are used to display data. They visually represent relationships between data. All graphs should have a title that identifies the variables.

Newton’s Second Law. Objective ► At the end of today, you will be able to explain:  The greater the force exerted on the object, the greater the acceleration.

Newton’s Second Law of Motion

The book is the system. The table, the hand, and Earth’s mass (through gravity) all exert forces on the book. We must consider SYSTEMS and INTERACTIONS.

PHYS16 – Lecture 10 & 11 Force and Newton’s Laws September 29 and October 1, 2010

What is a Force? A force is a push or a pull causing a change in velocity or causing deformation.

ME 101: Measurement Demonstration (MD3)

PSC 151 Laboratory Activity 3 Graphical Analysis IIA Nonlinear Graphs 1 and The Acceleration Due to Gravity.

1 Some application & Forces of Friction. 2 Example: When two objects of unequal mass are hung vertically over a frictionless pulley of negligible mass,

Notes Force. Force is a push or pull exerted on some object. Forces cause changes in velocity. The SI unit for force is the Newton. 1 Newton = 1 kg m/s.

Comparing Forces. In this experiment you will use two force sensors to compare the force that one object exerts on another. The force sensors are electronic.

Finding a Linear Equation and Regression Finding a Linear Equation Using the LINDEMO data as a Distance in meters from the motion detector vs Time in seconds.

Graphical Analysis of the Relationship between Circumference and Diameter of a Circle.

Get out the Notes from Monday Feb. 4 th, Example 2: Consider the table below displaying the percentage of recorded music sales coming from music.

The Pendulum A.Set up a pendulum with a photogate set to read the period. B.Start the data collection to read the period. Record the period and the length.

Graphs of Motion Physics Ms. Allison. General Graphing Rules Title Label x and y axis with units - Dependent variable is on the y-axis; independent is.

Newton’s Second Law Pre-Lab

ICP TCHS “Motion”. Students who demonstrate understanding can: HS- PS2-1. Analyze data to support the claim that Newton’s second law of motion describes.

Starter If a semi runs into a smart car, the force is largest on: a.The truck b.The car c.It depends on their individual speeds. d.It’s the same on both.

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.

Starter 1.What is the spring constant for this spring? 2.What is the meaning of the y-intercept? 1.What is the spring constant for this spring? 2.What.

7.3 Newton’s third law of motion Newton’s third law of motion Practical 7.3 Purpose To verify Newton’s third law of motion. Procedure 1.Set up the apparatus.

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

In this chapter you will:  Use Newton’s laws to solve problems.  Determine the magnitude and direction of the net force that causes a change in an object’s.

Graphical Model of Motion. We will combine our Kinematics Equations with our Graphical Relationships to describe One Dimensional motion! We will be looking.

Introduction to Dynamics. The Study of Forces Where Kinematics is the study of motion, Dynamics is the study of why things move. Sir Isaac Newton formulated.

Vernier Equipment Understanding the Basics of Vernier Technology and Tools Part 2: External Probes and Networking.

Since all points on the x-axis have a y-coordinate of 0, to find x-intercept, let y = 0 and solve for x Since all points on the y-axis have an x-coordinate.

Exp. 3: Motion on a linear air track

Cell Respiration LabQuest Activity 11B

Free Body Diagrams.

Only 25 more lectures after today!!

Chapter 4 Forces.

Exp. 3: Motion on a linear air track

Motion and Force. Motion and Force Chapter Three: Motion 3.1 Position and Velocity 3.2 Graphs of Motion 3.3 Acceleration.

REVISION PROJECTILE MOTION.

Virtual Lab: Exploring Newton’s 2nd Law

Motion and Force. Motion and Force Chapter Three: Motion 3.1 Position and Velocity 3.2 Graphs of Motion 3.3 Acceleration.

Classical Mechanics Midterm 1 and Newton’s Laws

Motion on a linear air track

Using the “Clicker” If you have a clicker now, and did not do this last time, please enter your ID in your clicker. First, turn on your clicker by sliding.

Motion and Force. Motion and Force Chapter Three: Motion 3.1 Position and Velocity 3.2 Graphs of Motion 3.3 Acceleration.

Motion and Force. Motion and Force Chapter Three: Motion 3.1 Position and Velocity 3.2 Graphs of Motion 3.3 Acceleration.

Newton’s Second Law Pre-Lab

Presentation transcript:

Newton’s 2nd Law How does a cart change its motion when you push and pull on it? You might think that the harder you push on a cart, the faster it goes. Is the cart’s velocity related to the force you apply? does the force just change the velocity? what does the mass of the cart have to do with how the motion changes? We know that it takes a much harder push to get a heavy cart moving than a lighter one. A Force Sensor and an Accelerometer will let you measure the force on a cart simultaneously with the cart’s acceleration. The total mass of the cart is easy to vary by adding masses. Using these tools, you can determine how the net force on the cart, its mass, and its acceleration are related. This relationship is Newton’s second law of motion.

Objectives and Materials Collect force and acceleration data for a cart as it is moved back and forth. Compare force vs. time and acceleration vs. time graphs. Analyze a graph of force vs. acceleration. Determine the relationship between force, mass, and acceleration. Materials LabQuest Vernier Force Sensor LabQuest App low-friction dynamics cart Vernier Low-g Accelerometer 0.50 kg mass

Procedure - setup Attach the Force Sensor to a dynamics cart so you can apply a horizontal force to the hook, directed along the sensitive axis of your particular Force Sensor. Next, attach the Accelerometer so the arrow is horizontal and parallel to the direction that the cart will roll. Orient the arrow so that if you pull on the Force Sensor the cart will move in the direction of the arrow. Find the mass of the cart with the Force Sensor and Accelerometer attached. Record the mass in the data table. Set the range switch on the Force Sensor to 10 N. Connect the Force Sensor and the Low-g Accelerometer to LabQuest. Choose New from the File menu. Next you will zero the sensors. To do this, place the cart on a level surface. With the cart stationary and no force applied to the Force Sensor, wait for the acceleration and force readings to stabilize. From the Sensors menu choose Zero ► All Sensors. The readings for both sensors should be close to zero.

Trial I collect force and acceleration data Grasp the Force Sensor hook. Start data collection and take several seconds to gently move the cart back and forth on the table. Vary the motion so that both small and moderate forces are applied. Make sure that your hand is only touching the hook on the Force Sensor and not the Force Sensor itself or the cart body. Acceleration and force data are displayed on separate graphs. Sketch the graphs in your notes. How are the graphs similar? How are they different?

Trial I comparing acceleration and force data make a new plot of force vs. acceleration, with no time axis. From the Graph menu Choose Show Graph ►Graph 1 to view a single graph. From the Graph menu Choose Graph Options and deselect Point Protectors and Connect Points. This will remove the point protectors and the line connecting the data points on the subsequent graph. Select OK. Change the x-axis to Acceleration and the y-axis to Force. Sketch this graph in your notes. 7. To fit a line to the graph of force vs. acceleration, choose Curve Fit from the Analyze menu. Select Linear as the Fit Equation. The linear-regression statistics for these two data columns are displayed in the form: y = mx + b where x is acceleration, y is force, m is the slope, and b is the y-intercept. What does the value of the slope represent? Print or sketch your graph. 8. Using the regression equation, determine the acceleration of the cart when a force of 1.0 N has acted upon it. Record the force and acceleration in the data table. 9. Repeat Step 8 using a force of –1.0 N

Trial 2 Attach the 0.50 kg mass to the cart. Record the mass of the cart, sensors, and additional mass in the data table. Repeat Steps 4–9 for the cart with the additional 0.50 kg mass.