Uniform Circular Motion. 4 https://www.youtube.com/watch?v=FVo2q dXxQ7o https://www.youtube.com/watch?v=FVo2q dXxQ7o.

Slides:

Advertisements

Similar presentations

Uniform Circular Motion

Advertisements

Circular Motion AP Physics C.

Uniform circular motion – Another specific example of 2D motion

Circular Motion. Position on a Circle  Motion in a circle is common.  The most important measure is the radius ( r ).  The position of a point on the.

Circular Motion. Circular Motion: Description & Causes Circular motion is motion along a circular path due to the influence of a centripetal force. [Note:

Uniform Circular Motion Basic Principles & Formulas.

UCM and Torque Review. Your physics teacher is spinning a cup of water around their head at the end of a string that is 0.8 m long. Assuming they can.

Circular Motion Level 1 Physics. What you need to know Objectives Explain the characteristics of uniform circular motion Derive the equation for centripetal.

Uniform Circular Motion (UCM) 4/25/07. Uniform Circular Motion UCM means that  is constant Which means that…

Chapter 8: Rotational Kinematics Lecture Notes

Week.  Student will: centripetal accelerationcentripetal force  Solve problems involving centripetal acceleration and centripetal force.

C H A P T E R 5 Dynamics of Uniform Circular Motion

Circular Motion. Speed/Velocity in a Circle Consider an object moving in a circle around a specific origin. The DISTANCE the object covers in ONE REVOLUTION.

Rotational Motion = Uniform Circular Motion r r v2v2 v1v1 7v7v 2 2 a b Chord ab c d e f Using similar triangles abc def Where r is.

Section 17.2 Position, Velocity, and Acceleration.

Tangential and Centripetal Accelerations

ROTATIONAL MOTION Uniform Circular Motion

Circular Motion. Uniform Circular Motion Motion of an object at constant speed along a circular path.

Centripetal Motion Motion towards the center of a circle.

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.

Uniform Circular Motion (UCM) The object travels in a circular path with a constant speed. Its velocity is tangent to the circle and is changing due to.

Objectives  Explain why an object moving in a circle at a constant speed is accelerated.  Describe how centripetal acceleration depends upon the object’s.

Circular Motion. Uniform Circular Motion Speed of object may be constant Velocity is constantly changing Direction of the velocity is tangent to the circle.

Round and Round Circular Motion. If this is true, why does ANYTHING move in a circle? CIRCUMFERENCE C = 2πr = πd PERIOD (T) Time for one revolution.

Centripetal Acceleration is a vector quantity because it has both direction and magnitude. Centripetal Acceleration is defined as an acceleration experienced.

Circular motion Objectives: understand that acceleration is present when the magnitude of the velocity, or its direction, or both change; understand that.

CIRCULAR MOTION. WHAT IS UNIFORM CIRCULAR MOTION The motion of an object in a circle at constant speed. However, direction and therefore velocity are.

Universal Force of Gravity and Circular Motion Unit 5.

Circular Motion A brief intro.. Uniform Circular Motion UCM is the movement of an object or particle trajectory at a constant speed around a circle with.

Uniform Circular Motion. Acceleration When an object moves at a constant speed in a circular path, it is constantly changing direction – accelerating.

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.

Circular Motion Section 7.3

Circular Motion = the movement of an object at constant speed around a circle with fixed radius Axis – straight line around which rotation takes place.

PRINCIPLES OF PHYSICS Circular Motion. When an object moves in a circle its path is described by: Radius (r) – distance from the center to the perimeter.

Set 4 Circles and Newton February 3, Where Are We Today –Quick review of the examination – we finish one topic from the last chapter – circular.

C H A P T E R 5 Dynamics of Uniform Circular Motion.

Proportionality between the velocity V and radius r

Dynamics of Uniform Circular Motion Uniform Circular Motion Centripetal Acceleration Centripetal Force Satellites in Circular Orbits Vertical Circular.

Circular Motion. Speed/Velocity in a Circle Consider an object moving in a circle around a specific origin. The DISTANCE the object covers in ONE REVOLUTION.

1 Uniform Circular Motion SP1. Students will analyze the relationships between force, mass, gravity, and the motion of objects. g. Measure and calculate.

Circular Motion Chapter 9 in the Textbook Chapter 6 is PSE pg. 81.

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.

Chapter 9 Circular Motion. Axis: The straight line about which rotation takes place Rotation: Spin, when an object turns about an internal axis Revolution:

Projectiles Motion in Two Dimensions Chapter 7. Projectile An object launched into the air by a force Trajectory The path followed by a projectile.

Uniform circular motion is the motion of an object traveling at a constant speed on a circular path. Uniform Circular Motion.

Circular Motion Centripetal Acceleration. Revisiting Acceleration What is acceleration? Acceleration is how fast an object’s velocity changes. But what.

Uniform Circular Motion (UCM) The object travels in a circular path with a constant speed. Its velocity is tangent to the circle and is changing due to.

Circular Motion Chapter 7.3. Motion & Forces What you already know: –Velocity – a measure of the change in displacement (distance with direction. –Mass.

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.

Unit 4 Vocabulary Terms Circular Motion. Radius - R The radius is defined as half the diameter of a circle or the distance from the edge of a circle to.

Circular Motion Chapter 7 Section 1. What are we discussing today? Circular motion Centripetal acceleration & Centripetal force Tangential Speed You will.

UNIFORM CIRCULAR MOTION Centripetal force. UNIFORM CIRCULAR MOTION  Motion at a constant speed around a circle with a constant radius. V Fc Ac.

Section 7-1 Circular Motion Acceleration can be produced by a change in magnitude of the velocity and/or by a change in ____________________ of the velocity.

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 Purpose: Determine how the linear speed of an object in uniform circular motion depends on the: 1) radius of path 2) centripetal.

Forces and Motion in Two Dimensions Circular Motion.

Circular Motion 6.2 In this section you will:

Circular Motion 6.2 In this section you will:

Uniform Circular Motion

Circular Motion.

Circular Motion.

**Uniform Circular Motion

Chapter 7 Objective Solve problems involving centripetal acceleration.

Circular Motion What is acceleration?

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.

constant speed. Is the object accelerating?

Uniform Circular Motion

Entrance and Exit Slip Questions

Presentation transcript:

Uniform Circular Motion

4 dXxQ7o dXxQ7o

4 s4b6M s4b6M

What is uniform circular motion? 4 Movement of an object at constant speed around a circle with a fixed radius 4 Can the velocity be accelerated even though it has constant speed? 4 Yes, because the velocity may change due to direction. If direction changes and velocity changes then an object can accelerate.

New terms for UCM TermSymbolUnitsExample Radiusrm3 m Centripetal acceleration acac m/s m/s 2 toward the center Tangential speed vTvT m/s3.6 m/s PeriodTs4.7 s

Describing Circular Motion 4 A lower case r represents the position of a vector (the radius of the circle) 4 The direction of the vector can change but not its length (length is proportional to magnitude) 4 The acceleration of an object in uniform circular motion is always toward the center of the circle, called centripetal acceleration

Circular Motion Equations 4 Centripetal acceleration (a c )- acceleration of an object in uniform circular motion. a c = v T 2 /r 4 Tangential speed (v T )- speed at which an object travels in a circular path. v T = 2πr/T an object will travel the distance of the circumference of the circle, which is represented by C = 2πr Time required for one complete revolution around a circle is called a period –Symbol is T –Units are seconds

NASA 4 uolk uolk

What about net force? 4 The force that causes centripetal acceleration is called centripetal force 4 For an object in UCM, what direction is the net force? 4 The same direction as the acceleration – toward the center 4 F net = ma c 4 If you stop the acceleration, what direction will the object move? 4 The movement of the object is in the direction of the velocity or tangent to the circle.

Mythbusters 4 ew/assetGuid/17BDD8FF-82B E-D724B968360D ew/assetGuid/17BDD8FF-82B E-D724B968360D 4 Slo Mo 4 u29Wc u29Wc

Let’s Practice 4 The ball at the end of the string 0.5 m long moves in a circle. The ball has a mass of 0.25 kg and makes 2 revolutions every second. 4 Find the period of the ball.

What is the tangential velocity of the ball?

What is the centripetal acceleration of the ball?

What is the centripetal force of the ball on the end of the string?