Circular Motion What is acceleration?

Slides:



Advertisements
Similar presentations
Uniform Circular Motion
Advertisements

Chapter 8: Dynamics II: Motion in a Plane
Uniform Circular Motion
An object moving in uniform circular motion is moving in a circle with a constant speed. uniform: not changing in form or character; remaining the same.
Centripetal Force. Acceleration in a Circle  Acceleration is a vector change in velocity compared to time.  For small angle changes the acceleration.
C H A P T E R 5 Dynamics of Uniform Circular Motion
as the force required before you changed the crate’s orientation.
Announcements! Extra credit posted this coming Sunday--get your team together! Mon/Tue-Circular applications of Newton’s Laws Good examples in the book!
Do now: The propeller blades of an aircraft rotate with a frequency of 40Hz. If the blades have a radius of 85cm how fast do the tips of the propeller.
Uniform Circular Motion
AP Physics B I.E Circular Motion and Rotation. I.E.1 Uniform Circular Motion.
Circular and Centripetal Motion
Do now: The propeller blades of an aircraft rotate with a frequency of 40Hz. If the blades have a radius of 85cm how fast do the tips of the propeller.
Projectile Motion is the motion Of objects moving In two Dimensions under the influence Of gravity. Projectiles follow parabolic paths This path is.
ROTATIONAL MOTION Uniform Circular Motion
Uniform Circular Motion. What is uniform circular motion? 4 Movement of an object at constant speed around a circle with a fixed radius 4 Can the velocity.
7-3 Circular Motion. As an object travels in uniform circular motion Its tangential speed remains constant The direction of its velocity is constantly.
Objectives  Explain why an object moving in a circle at a constant speed is accelerated.  Describe how centripetal acceleration depends upon the object’s.
Derivation of this formula is found in chapter 7 section 3. Also remember that circular motion involves acceleration and therefore there is a net force.
Centripetal Acceleration is a vector quantity because it has both direction and magnitude. Centripetal Acceleration is defined as an acceleration experienced.
+ Circular Motion Noadswood Science, To know what circular motion is Friday, June 03, 2016 Circular Motion Circular motion.
Circular Motion Uniform circular motion: examples include Objects in orbit (earth around the sun Driving a car around a corner Rotating a ball around on.
Uniform Circular Motion. Motion of an object moving in a circle at constant speed. Motion of an object moving in a circle at constant speed. The linear.
Centripetal Acceleration and Circular Motion. A B C Answer: B v Circular Motion A ball is going around in a circle attached to a string. If the string.
C H A P T E R 5 Dynamics of Uniform Circular Motion.
Happy Thursday Grab your calculator Get ready to take notes Get ready for your warm up No quiz tomorrow Next test: after Thanksgiving break.
Dynamics of Uniform Circular Motion Uniform Circular Motion Centripetal Acceleration Centripetal Force Satellites in Circular Orbits Vertical Circular.
1 Uniform Circular Motion SP1. Students will analyze the relationships between force, mass, gravity, and the motion of objects. g. Measure and calculate.
Unit 6: Circular Motion Consider a Ferris wheel. ◦ The cars are in circular motion because they revolve about a single axis. ◦ The line about which the.
C ENTRIPETAL A CCELERATION. This unit we will investigate the special case of kinematics and dynamics of objects in uniform circular motion – traveling.
Circular Motion Review
Physics Section 7.1 Define and apply circular motion What is circular motion? Any object that revolves about.
Based on your knowledge and everything we have seen in this class, How would you relate Thanksgiving to Physics?
Do Now Which of the following objects is accelerating: a. A car slowing down. b. A free fall object momentarily stopped at its max height. c. A ball tied.
Chapter 5 Dynamics of Uniform Circular Motion. 5.1 Uniform Circular Motion DEFINITION OF UNIFORM CIRCULAR MOTION Uniform circular motion is the motion.
UNIFORM CIRCULAR MOTION Centripetal force. UNIFORM CIRCULAR MOTION  Motion at a constant speed around a circle with a constant radius. V Fc Ac.
Brain Teaser I wish tomorrow was yesterday so today would be Friday. What day is it?
Dynamics of Uniform Circular Motion  An object moving on a circular path of radius r at a constant speed, V  Motion is not on a straight line, the direction.
Uniform Circular Motion. 4 dXxQ7o dXxQ7o.
Uniform Circular Motion
Unit 3: Circular motion, Work & Energy
Circular Motion 6.2 In this section you will:
Circular Motion What are some examples of objects taking a circular path? What force causes those objects to follow that path?
Circular Motion 6.2 In this section you will:
CIRCULAR & ROTATIONAL MOTION
Centripetal Acceleration and Circular Motion
Circular Motion Motion of an object moving in a circular path.
Non-Uniform circular motion
Uniform Circular Motion
Circular Motion.
Centripetal Acceleration Centripetal Force
Circular Motion 2D Forces and Motion.
Aim: How do we solve problems involving circular motion?
Circular motion - chapter 6
Recall: Uniform Circular Motion
Chapter 5: Uniform Circular Motion
Circular motion.
More Centripetal Force Problems
Circular Motion Uniform circular motion: examples include
**Uniform Circular Motion
Entrance and Exit Slip Questions
Uniform Circular Motion Chapter 5 Lesson 1
Circular Motion Notes.
Round and Round Circular Motion.
Circular Motion An object that revolves about a single axis undergoes circular motion. The axis of rotation is the line about which the rotation occurs.
Topic 2.4 Uniform Circular Motion
UNIFORM CIRCULAR MOTION - UCM
Uniform Circular Motion
Entrance and Exit Slip Questions
Circular Motion.
Presentation transcript:

Circular Motion What is acceleration? How can we keep a ball rolling in a circle or a battery-operated car moving in a circle? Take a look...

To the lab tables… Experiment with the tape and marble until you can move the marble in a circle with constant speed. What is the direction of the acceleration? What is the direction of the net force? Make a prediction about what will happen when you lift the tape while the marble is moving. Then test your prediction.

So where is the acceleration?

Centripetal Acceleration, ac Period: Length of time needed for object to make one complete revolution. T = 1/f where f is frequency.

The formula…

Examples:

Let’s Work an Example… A 13-g stopper is attached to a 0.93-m string. When swung in a circle, the apparatus completes one revolution in 1.18 seconds. Find the tension force the string exerts on the stopper.

What’s ac ? ac = 4π2r/T2 r = 0.93m T = 1.18s ac = 26.3 m/s2

Albert is swinging a yo-yo around his head. The yo-yo has a mass of 0 Albert is swinging a yo-yo around his head. The yo-yo has a mass of 0.028 kg and the length of string from his hand to the yo-yo is 0.75 m. The yo-yo makes one revolution in 1.2 s. What is the magnitude of the force exerted by the string on the yo-yo? A = 20.5 m/s2 and F=0.58 N

Exit slip: In circular motion, what aspects of velocity and acceleration vectors are similar? What aspects are different? Describe speed, velocity, and acceleration in uniform circular motion. Why do you slide toward the outside of a car when you make a turn?