WORK AND POWER Lesson 6.

Slides:



Advertisements
Similar presentations
Grade 8 Mechanical Systems
Advertisements

Work and Power 1. Describe the conditions that must exist
Work, Power, and Machines
Chapter 5 Lesson 1.
What is Work? Book M: Section 4.1.
Ch. 14. Newton’s 2 nd Law ??? F = m a Kinetic Energy = energy in motion Potential Energy = energy at rest.
Honors Physics. By his power God raised the Lord from the dead, and he will raise us also. 1 Corinthians 6:14.
The weight lifter applies a large force to hold the barbell over his head. Because the barbell is motionless, no work is done on the barbell.
14-1 cornell p. 412 What is work Calculating work What is power?
Work is the product of the force and the distance through which the object moves W = F x d W = F x d.
Work, Power, and Simple Machines
T101Q7. A spring is compressed a distance of h = 9.80 cm from its relaxed position and a 2.00 kg block is put on top of it (Figure 3). What is the maximum.
The weight lifter applies a large force to hold the barbell over his head. Because the barbell is motionless, no work is done on the barbell.
14.1 Work and Power notes 14.1 for background and also for lab on calculating horsepower... also have notes for 15.1 on same day... This unit will be 14.1,
Work, Power, and Machines
Work and Machines What is Work?. The Meaning of Work you exert a force on the object that causes the object to move some distance In science, you do work.
Unit Two: Mechanical Energy A: Work- –in everyday life, it means many things –In physics, work is “what is accomplished when a force acts on an object.
Chapter 14 Work, Power and Simple Machines Do work, son!
The weight lifter applies a large force to hold the barbell over his head. Because the barbell is motionless, no work is done on the barbell.
Work and Power. Work Work is the product of force and distance. Work is done when a force acts on an object in the direction the object moves. Work is.
Work AP style. Energy Energy: the currency of the universe. Everything has to be “paid for” with energy. Energy can’t be created or destroyed, but it.
Work and Energy Chapter 5 pg Chapter 12 pg
Essential Question: What is work (in physics)?
A force of 15 newtons is used to push a box along the floor a distance of 3 meters. How much work was done in this situation?
CHAPTER 14 Work, Power and Machines Work and Power Work requires motion. Work is the product of force and distance. Figure 1 work is only being.
Chapter 14 Work, Power, and Machines. Section 1 Work and Power.
9 Energy Energy can change from one form to another without a net loss or gain.
Energy, Work and Power. Energy Energy: the currency of the universe. Just like money, it comes in many forms! Everything that is accomplished has to be.
14.1 & Work The weight lifter applies a large force to hold the barbell over his head. Because the barbell is motionless, no work is done on the.
POWER: What is it?.
Work & Machines Chapter 5 Section 1 (p ) Section 2 (p ) Section 3 (p )
Section 14 Work, Power, and Energy. More Power!!!!! What does he mean?
WorkMathPowerMachinesMisc Question What is the SI unit for work?
What is WORK? A – The Meaning of Work 1 – Work – is done on an object when the object moves in the SAME direction in which the force is exerted. Example:
Work & Energy Unit Part 1: Work, Power, & Machines.
Gravitational Force  Gravity= a force of attraction between objects, “pulls” objects toward each other  Law of universal gravitation= all objects in.
Forces.
Work and Energy Salud N. Velasco Ramon Magsaysay (Cubao) High School.
WORK.
Work and energy.
Work and Power Chapter 3, Lesson 1.
Work, Power Problems Answers
Work and Power Quiz Solutions
Work Physics Ms. Li.
What is Work? Work – The product of force and distance when a force moves an object a distance. In order for you to do work on an object, the object must.
Work.
Because the barbell is motionless, no work is done on the barbell.
Work and Energy.
Part 1: Work, Power, & Machines
Write a response to this question in your own words.
Mechanical Advantage Simple Machines.
Work & Machines.
Mechanical Advantage Simple Machines.
Energy.
Work.
Today’s Target…. I can identify patterns and trends on a graph. Today I will identify patterns and trends on a graph showing the motion of an object.
Work and Power.
Work Physics 11.
2.2 Types of Forces gravity law of universal gravitation weight
Force & Work Notes TEKS 6.8E investigate how inclined planes and pulleys can be used to change the amount of force to move an object TEKS 7.7A contrast.
Mechanical Advantage Simple Machines.
Work.
Work.
WORK.
Work Yes you out there !.
WORK AND POWER WHEN OBJECTS MOVE.
Work 5.1 What is work? To many people, the word work means something they do to earn money. The word work also means exerting a force with your muscles.
Work & Power QOD: List and explain an example of work & power relevant to your life.
Work, Power and Efficiency
STARTER Can you fill in the energy transfer review sheet on your desks? Work together as a group!
Presentation transcript:

WORK AND POWER Lesson 6

What is work? WORK is the product of force and distance. Work is done when a force acts on an object in the direction the object moves. Work requires motion. If there is no movement, no work is done.

Work Depends on Direction NOTE: Figure 2C, the vertical lifting force does not act in the direction of motion. Thus, this vertical force does no work on the suitcase.

CALCULATING WORK The work done is calculated by multiplying the constant force acting in the direction of motion by the distance that the object moves.

Using the work formula it is easy to calculate the work done by a weight lifter who lifts 1000 N bar-bell from his chest over his head.

What is Power? POWER is the rate of doing work. Doing work at faster a faster rate requires more power. To increase power, you can increase the amount of work done in a given time, or you can do a given amount of work in less time.

Test Yourself Your family is moving to a new apartment. While lifting a box 1.5 m straight up to put it on a truck, you exert an upward force of 200 N for 1.0 s. How much power is required to do this? You lift a book from the floor to a bookshelf 1.0 m above the ground. How much power is used if the upward force is 15.0 N and you do the work in 2.0 s? You apply a horizontal force of 10.0 N to pull a wheeled suitcase at a constant speed of 0.5 m/s across flat ground. How much power is used?

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

© 2024 SlidePlayer.com Inc. All rights reserved.