#13 Speed and Momentum. Speed Depends on Distance and Time speed – the rate at which an object moves speed depends on the distance traveled and the time.

Slides:

Advertisements

Similar presentations

Aim: How can we explain momentum and impulse? Do Now: Which is easier to do: Stop a skateboard traveling at 5 m/s or stop a car traveling at 5 m/s? Why?

Advertisements

Opening Activity Compare and contrast the following:

1)320.4 hL = ______cL 2)150 mL = _______ kL 3)115.0 cL = ________L 4)50 L = ______dL 5)1L = ______hL Warm-up: on your own paper.

Physics you didn’t know that you already knew.

Physics Motion in one Dimension 2.1 Reference Frames and Displacement 2.2 Average Velocity 2.3 Instantaneous Velocity 2.4 Acceleration 2.5 Motion.

Speed, Acceleration and Momentum

MOTION. M1. WHAT IS MOTION? Motion occurs whenever something changes position. To tell if something is changing position, you need a point of reference.

Motion and Force Chapter Twelve: Distance, Time, and Speed Chapter Thirteen: Forces Chapter Fourteen: Force and Motion.

Motion, Forces, and Energy

Motion, Forces, and Energy Chapter 1: Motion and Momentum.

Newtonian Revolution The study of Physics begins with Newtonian mechanics. Mechanics is the branch of physics that focuses on the motion of objects and.

Motion Chapter 12.

Momentum Notes. Sports Momentum The sports announcer says "Going into the all-star break, the San Diego Padres have the momentum." The headlines declare.

What is motion? Acceleration Momentum

Momentum  Momentum is what Newton called the “quantity of motion” of an object.

What is Velocity? What is Acceleration?.  Mrs. Wilk drove to school this morning. Her average speed was 27 mph. What was Mrs. Wilk’s average speed this.

Speed, Velocity and Acceleration What is speed? How is velocity different than speed? What is acceleration? Today’s Goal: Be able to use the proper equations.

Motion in One Dimension Kinematics. Distance vs. Displacement Distance – how far you’ve traveled Scalar quantity - 20 m Displacement – shortest distance.

Acceleration & Speed How fast does it go?. Definition of Motion Event that involves a change in the position or location of something.

LINEAR MOMENTUM: A.MOMENTUM – A vector quantity defined as the product of an object’s mass and velocity B. FORMULA – momentum = mass x velocity p = m x.

Motion and Point of Reference Motion is a ___________in _____________. Determining whether or not something has changed its position depends on your ___________.

Kinematics- Acceleration Chapter 5 (pg ) A Mathematical Model of Motion.

Section 2 Acceleration.  Students will learned about  Describing acceleration  Apply kinematic equations to calculate distance, time, or velocity under.

Acceleration- Change in Velocity

Acceleration Definition 2 ways to do it Positive acceleration Negative acceleration (deceleration) A change in velocity Change speed and/or Change direction.

Motion in One Dimension Velocity. Motion – A change in position Motion.

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

Motion Chapter 11. Distance and Displacement To describe motion accurately and completely a frame of reference is necessary. There can be numerous frames.

VOCABULARY – Motion - when an object changes it position Relative Motion - an object’s position change is described in terms of a reference point Energy.

Motion. Motivational Poster #1 Applying physics principles.

Motion Recognizing, Describing, and Measuring Motion.

P. Sci. Chapter 11 Motion & Forces. Motion when something changes position.

Acceleration. The rate of change in velocity Acceleration The rate of change in velocity Examples…. –Speeding up Positive acceleration –Slowing down.

Momentum p = m v Momentum = mass * velocity momentum is directly proportional to an object's mass momentum is directly proportional to the object's velocity.

 In sports when player has a lot of momentum, what we mean, that it will be hard to stop them.  In Physics momentum refers to the quantity of motion.

Momentum Momentum = mass x velocity ( Kgm/s ) (kg) (m/s) If an object is moving towards you, your safety will depend on * how massive the object is * how.

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

 Motion  Change in position during a time period  3 types of motion –Speed –Velocity –Acceleration.

SPEED, VELOCITY AND ACCELERATION Motion. Distance & Displacement.

Average and Constant Acceleration Chapter 2. Acceleration.

Speed & Velocity CMS Georgia Davis.

Objectives: Evaluate the difference between velocity and acceleration. Solve simple acceleration problems in one dimension.

 Distance vs. Displacement  Speed vs. Velocity.

Chapter 11: Motion Section 11.3 Acceleration.

Physics Section 6.1 Solve momentum and impulse problems Momentum is the product of the mass and the velocity of an object. p = mv p =momentum (kg·m/s)

Momentum A quantity defined as the product of the mass and velocity of an object.

Motion. Applying physics principles How do you KNOW something moved? Frame of reference the background or object used for comparison. All movement is.

Motion in One Dimension - velocity. Motion – A change in position Motion.

Insanely Super Important Kinematics Terms. Kinematics The study of the motion of objects- does not deal with the forces that caused the motion.

EQ: What is the difference between speed and velocity?

Motion AS Physics Speed and Velocity Acceleration

Copy in Page 39 in Spiral Speed Distance Average speed Constant speed

Real or Ridiculous??!!.

Warm Up What is the velocity of MMA fighter Bas Rutten if his punch is thrown forward at .12 seconds traveling 1.5 meters.

Acceleration The rate at which velocity changes.

A car is decelerated to 20 m/s in 6 seconds

As we watch this video….. think about these questions:

Recognizing, Describing, and Measuring Motion

#13 Speed and Momentum. #13 Speed and Momentum.

Calculating Speed from a Distance-Time Graph

The Kinematics Equations

Motion Vocabulary.

Speed Velocity Acceleration

Recognizing, Describing, and Measuring Motion

Motion Measuring Motion Motion Speed & Velocity Acceleration

Cornell Notes 2-5 Velocity and Acceleration

Today’s Agenda…9-1  Bellringer: What is the difference between speed and velocity? Take up HW Notes on Acceleration BrainPop on Acceleration.

Presentation transcript:

#13 Speed and Momentum

Speed Depends on Distance and Time speed – the rate at which an object moves speed depends on the distance traveled and the time it takes to get there. Average speed =total distance total time

The speed of a bicycle is the distance it travels divided by the time it takes.

TS D S = D T D = S T T = D S

V = speed in the following equations

Constant Speed Speed that does not change

Velocity Speed with direction –A vector quantity [magnitude & direction]

A plane with a constant velocity of 600 km/h west moves in a straight line. (Its speed and direction remain the same.) A car going around a bend at a constant 30 mph has a constant speed, but its velocity is not constant. (Note the change in direction.)

Acceleration A change in velocity –Speeding up Positive acceleration –Slowing down Negative acceleration Deceleration

Example of Acceleration: How velocity changed: A plane taking off Increase in speed Car stopping at a light Decrease in speed (deceleration) Walking around Change in direction a corner A Ferris wheel Change In direction Acceleration = any change in speed OR direction!

Momentum What is momentum? The San Diego Chargers have momentum entering the final weeks of the season… Anything that is moving has momentum Depends on what?

Momentum The momentum of an object: -Depends on the object’s mass. Mass is the amount of matter in an object and - Depends on the object’s velocity. Velocity is speed in a given direction

Calculating Momentum Momentum = mass x velocity In symbols: p = mv Common units of momentum: kgm/s p m v

Determine the momentum of a... A) 60-kg person moving eastward at 9 m/s. p = m v p = 60 kg x 9 m/s = 540 kg·m/s east B) 1000-kg car moving northward at 20 m/s. p = m v p = 1000 kg x 20 m/s = 20,000 kg·m/s C) 40-kg dog moving southward at 2 m/s. p = m v p = 40 kg x 2 m/s = 80 kg·m/s –Which has the most momentum?