Work Work is an amount of force applied to an object making it move a certain distance *If an object doesn’t move, no work is done.

Slides:

Advertisements

Similar presentations

What is Work? In Science, Work is accomplished when a force is moved over a distance. Work. –Lifting books, pushing a box 2 feet, pulling a wagon. Not.

Advertisements

Work Work is done only when a force moves an object.

Work and Power 1. Describe the conditions that must exist

Forces & Motion Work. Work – force exerted on an object that causes it to move some distance Work = Force x Distance Force is still measured in Newtons.

What is Work? Book M: Section 4.1.

Chapter 15 Work. How did humans thousands of years ago build such structures as the great pyramids of Egypt?

WORK and POWER!.

Bellwork How much work is done by a tennis racket on a tennis ball if it exerts a horizontal force of 44 Newtons on a 0.25 kg ball from a height of 1.0.

Work is the product of the force and the distance through which the object moves W = F x d W = F x d.

Work and Power Problems

Chapter 13: Work and Energy

Work, Power & Simple Machines

Chapter 12 Work, Power, & Machines. I. What is work? A.Work – when force causes a change in an objects position. 1.Change must be in the direction force.

Work F The force, F, pushes the box for a short distance. This causes the box to start moving!!!!!! It gains energy!!!! I just don’t have any energy 

 Every day we do work. Many days we also don’t do work.  Work is defined as a the product of force and the distance the object moves. Work = Force ×

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.

Work and Machines.

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 WHEN OBJECTS MOVE.

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?

Work.  Lifting books out of your backpack?  Carrying your backpack to class?  Pushing a car that is stuck in the snow?  Rolling a bowling ball? What.

Unit B 1.4 Work and Energy. Force Defined as a push or a pull on an object Measured in Newtons Force (N) = mass (kg) x acceleration (m/s 2 ) Kg*m/s 2.

Chapter 9.1 Work.

Work pg. _____. Objectives Define the joule in terms of force and distance. State the connection between work and energy. Apply the work equation to calculate.

Work and Power. What is force? A force is a push or a pull.

Work done is the energy transferred when a force moves an object over a distance. Since work is energy transferred, the unit for work is the joule (J).

Work  When a force causes an object to MOVE in the DIRECTION of the force.  Calculated using the equation:  Force x Distance  F x d  Units  Newton.

Chapter 12 Work, Power, & Machines. Assignment: Make your paper look like this: Work, Power, & Machines ABCDEFGHZABCDEFGHZ.

Section 14 Work, Power, and Energy. More Power!!!!! What does he mean?

Calculating Work. Work = force x distance W=f x d Unit of Measurement for Work is Joules Unit of Measurement for Force is Newtons Unit of Measurement.

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:

Understanding and Calculating Work Work - When a force acts on an object and causes it to move through a distance, energy is transferred and work is done.

Work  Work occurs when: 1.An object moves when a force is applied 2.The direction of the objects motion is the same as the direction of the force Formula:

FORCE – PUSH OR PULL The unit of measurement for force is the Newton (N)

Work, Power & Energy.

Work and Power Quiz Solutions

Do Now: 1. Calculate the distance between two 75 kg individuals that have a gravitational attraction of 8.34 x 10-7N.

Work Whoa!!! Now I do!!!  I just don’t have any energy 

Chapter 6 Work and Machines

Work and Power Calculations

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.

Chapter 10: Energy and Work

Chapter 4 Part 2: Work/Power Notes

Work and Power Work is done when a force is exerted on an object and the object moves a distance x. Work = force ·distance W = F · d units: N·m = Joule.

Work, force, motion, and power

Write a response to this question in your own words.

Work and Power.

Work, Force and Motion.

Work and Power.

Chapter 12 Work and Energy

Energy can change from one form to another without a net loss or gain.

Calculating Work 4/9/2019 Calculating Work.

Chapter 7 Work.

3.2.1 Introduction to Work & Energy

Section B1.4 Work and Energy.

7.1 Work Force (N) W = F x d Work (joules) Distance (m)

Energy, Work & Power How the world works…..

WORK and POWER!.

Simple machines.

Sci. 4-1 Work and Power Pages

Presentation transcript:

Work Work is an amount of force applied to an object making it move a certain distance *If an object doesn’t move, no work is done

Work As such… W = F × d (Work = Force × distance) Units of work are joules where 1 joule = 1 kg·m2/s2 = 1 N·m (Newton-meter)

Work Practice Problems 1. While out with friends, someone’s car runs out of gas. They apply a cumulative force of 1080 N to push the car 210 m to the nearest gas station. Determine the work done on the car. 2. Someone is using rope to horizontally pull an object across an icy pond. They pull the object 5 meters using 10 J. How much force was applied to the object? 3. A powerlifter applies 3000 N of force to do 2600 J of work lifting a barbell off the floor. How high did they lift the barbell?