Energy in Design 2: Reducing Friction. Friction The pistons in a car engine lose thousands of watts of power to friction as they slide. Friction.

Slides:



Advertisements
Similar presentations
It’s all about… AERODYNAMICS!!
Advertisements

TRANSPORTATION. Energy Use By Sector Electric Utilities35.6% (1/3) Transportation28.4% (1/3) Industrial/Residential And Commercial 36.1% (1/3)
½ The same Twice Four times
More on Newton’s Law A car on a local street (i.e. air drag is negligible)
All science is either physics or stamp collecting. - Ernest Rutherford ( ) Discoverer of the nucleus.
Lessons 7 and 9 Notes “Rolling Along” and “The Fan Car”
Friction Inquiry Lab. Problem: How does friction affect motion? Friction is always present. Sometimes we want friction. For example, friction between.
Physics and Astronomy Outreach Program at the University of British Columbia Physics and Astronomy Outreach Program at the University of British Columbia.
2.2 Wheels. Ideas for today Friction Wheels and bearings Kinetic Energy Power.
+ Make a Prediction!!! “Two objects of the exact same material are placed on a ramp. Object B is heavier than object A. Which object will slide down a.
Low Rolling Resistance Tires Tom Murphy Energy Technology & Policy December 6, 2007.
Friction There are many forms of friction. This lesson introduces the force laws for static friction, kinetic friction, and rolling friction. Students.
Net Forces, Friction, Air Resistance
Physical Science motion and force. Objectives: –Explain the effects of unbalanced forces on the motion of objects –Compare and contrast static and kinetic.
Why Transportation?  Problem  Climate Change, Air Quality, Peak Oil, Congestion  Revolutions  Air, Land, and Water  Systems Integration  City Planning.
MADE BY :- SHALINI JOSHI.  A force that resists motion between two objects that are in contact with each other. Smoother surfaces exhibit less friction,
Forces and Friction. The weight of an object depends on the strength of gravity wherever the object is. The mass always stays the same.
Chapter 3 Forces.
RED SLIDE: These are notes that are very important and should be recorded in your Physics Notebook. Copyright © 2010 Ryan P. Murphy.
1 Thrust from the engine Friction Will the car speed up, slow down or stay at constant speed?
Mousetrap powered cars!. Why?? Mousetrap powered cars! Physics: Potential and kinetic energies and kinetic friction. Critical Skills: Critical thinking.
The Nature of Forces. Force a push or pull that gives energy to an object sometimes causes a change in motion.
101 PHYS CH3 Part 2 Section (12) understand Friction Force. Draw free-body diagrams for objects at rest and in motion with Friction Force. Apply your.
Chapter 6.1 Notes Power. The time it takes to complete an activity is as important as the work required. Compare running up stairs to walking up stairs.
Nonconservative Forces. When conservative forces act on a system ΔK + ΔU = 0 Most moving objects experience nonconservative forces – forces that remove.
Problem Talk: sources of drag Solution Talk: way to reduce drag Limitation: only class 12 semis Memory Map: Short Technical Talk Original Talk: Casey Howsare.
Period 2 Question 1.
Where the Rubber Meets the Road
Review Force, Friction, Motion, Power and Work.  In science, a force is a push or a pull.  All forces have two properties:  Direction and Size  A.
FRICTION. Friction A force that acts in a direction opposite to the motion Will cause a moving object to slow down and finally stop.
Work and Power. Work Let’s look at some examples of moving a book where “work” is being done and “work” is not being done on the book. Move the book from.
Motion & Forces Force A push or a pull *Cause an object to start moving, stop moving, or change direction.
Lecture 8 Static friction and Kinetic or Sliding friction.
ROLLING FRICTION AND FLUID FRICTION PER 6. DEFINE ROLLING FRICTION ROLLING RESISTANCE, SOMETIMES CALLED ROLLING FRICTION OR ROLLING DRAG, IS THE FORCE.
Circular Motion: Forces. Centripetal Force All objects that experience circular motion experience a centripetal force.
Steam engine. James watt invented the steam engine James watt was on January 19,1736,in Greenock,Scotland.
Ch 10.3 Forces Force: action on an object to change state of rest or motion (accelerate) (push or pull on object … “baby”answer) Objects change motion.
Vehicle Random Slide Show Menu Please select slide show below: Words & Pictures Set 1Set 2Set 3Set 4Set 5 Words only Set 1Set 2Set 3Set 4Set 5 Pictures.
Hosted by Mrs. Pyle DEFINITIONS MOVEMENT ENERGY MATH WITH A TWIST
Section 2-5 What is friction?. The force that opposes the motion of an object. If you slide a book across a desk it will move in the direction that you.
Section 13-2 Friction Friction Force that opposes the motion of an object Created when surfaces rub together.
What is the deal with friction?. Friction Force that opposes the motion of objects that touch as they move past each other. 4 types of friction –Static.
Sailing into Physics Friction using Car and Ramp and the Engineering Design Cycle.
Motion and Forces Force A push or a pull *Cause an object to start moving, stop moving, or change direction.
Friction Dynamics Physics. #1) Friction of a car A car has a mass of 1700 kg and is located on a level road. Some friction exists in the wheel bearings.
Unit 2: Motion and Force in One Dimension  6.1 Mass, Weight and Gravity  6.2 Friction  6.3 Equilibrium of Forces and Hooke’s Law Chapter 6: Forces and.
Work and Power. Work Let’s look at some examples of moving a book where “work” is being done and “work” is not being done on the book. Move the book from.
Automotive Braking Systems By Shane Dunlevy. Overview Brakes convert kinetic energy into heat by creating friction System must have very high reliability.
Power. Power Power is defined as “Work per unit time”
Friction Unit 3: Forces – Part 5.
bellringer In your composition books
FRICTION Notes!.
Chapter 10-3 Warm-Up 1. What are three factors that can change an object’s acceleration? 2. What units are used to measure speed? Acceleration? 3. What.
Forces.
Circular Motion Physics 513.
Friction.
PHYS 1441 – Section 002 Lecture #17
Motion and Forces.
30 miles in 1 hour 30 mph 30 miles per hour
A Waste of Energy By: William Drougton, William Gary, Christopher Little, and David Zeanah.
Friction.
Modeling and applying it
Friction.
Friction.
FRICTION.
Will the car speed up, slow down or stay at constant speed?
Newton's Second Law F=m/a Static Friction Sliding Friction
Chapter 2 Sec. 2 Friction and Gravity
Chapter 3 Forces.
FA Jambalaya.
Presentation transcript:

Energy in Design 2: Reducing Friction

Friction

The pistons in a car engine lose thousands of watts of power to friction as they slide. Friction

from Engineeringtoolbox.com Friction Coefficients

Friction vs. Speed & Area

Friction Energy & Power

 [Software] Modeling Friction Energy & Power

Reducing Friction

Rolling Resistance

{ train (steel on steel): bicycle tire on pavement: truck tires on pavement: car tires on pavement: Rolling Resistance

When Friction Is Good

 [Software] Modeling Friction

sustainabilityworkshop.autodesk.com

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.