We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byJaqueline Passons
Modified over 2 years ago
5.3 Simple Machines
Lever A bar that is free to pivot about a fixed point (fulcrum): the fixed point : distance from the fulcrum to where the effort force is applied. : distance from the fulcrum to where the resistance force is applied
3 Classes of Levers
First Class Lever Used to , always changes the of the applied force.Ex. Screwdriver used to pry paint can lid Fulcrum is in the
Second Class Lever Always – does not change direction of force.Ex. Wheelbarrow Resistance is located between the
Third Class Lever Increases the over which the resistance force is applied. (Does not multiply force) Ex. Baseball bat or hockey stick Effort force is
Mechanical Advantage Lever IMA = length of effort armlength of resistance arm Making the effort arm increases the IMA.
Pulley Fixed Pulley: modified first class lever Moveable Pulley:Attached to ceiling or wall Changes Moveable Pulley: Multiplies IMA = Distance you pull is the resistance distance
Pulley (cont.) Block and Tackle System of IMA =
Wheel and Axle Machine with that rotate together (gears)Ex. Door knob IMA = radius of wheel radius of axle Can be increased by making the
Inclined Planes Sloping surface Reduces the IMA = length height*the the ramp the less force required
Screw Inclined plane wrapped around a cylinder.The closer together the threads, the easier to screw into wood
Wedge Inclined plane with one or two sloping sides Changes the
Compound Machine Two or more simple machines used together.Ex. Can opener Car
5.3 Simple Machines. 6 Types Lever Pulley Wheel and axle Inclined Plane Screw Wedge.
14.4 Simple Machines. The 6 Simple Machines Lever Wheel and Axle Inclined Plane Wedge Screw Pulley.
Simple Machines. There are six simple machines: The lever The wheel and axel The inclined plane The wedge The screw The pulley.
Simple Machines 5.3 Physical Science.
Types of Simple Machines
Chapter 12 Flash Cards 20 index cards. Work When force is exerted on an object causing it to move in the same direction Work = F x D Joule (J) = Nm.
Chapter 14 Work, Power, & Machines. Sec Work & Power.
-a machine that does work with one movement
Simple Machines There are 6 types of simple machines: the inclined plane, the wedge, the screw, the lever, the pulley, and the wheel and axle.
Inclined Plane Decreases Input force!!! A flat, sloped surface.
Name ________________________________ Physical Science
Chapter 14 Section 3.
Bell ringer If the input force is bigger than the output force, then the input distance is __________ than the output distance. If the output force is.
Chapter 5 Work and Machines.
6.3 – Simple Machines Guided notes.
6.3 – Simple Machines.
CONSTRUCTIVE THOUGHTS Simple Machines 7.2. Six Types of Simple Machines leverpulley wheel and axle inclined plane screwwedge.
Machine- a device that makes work easier by changing the direction or size of the force.
Simple Machines, Mechanical Advantage, and Work. Machines Machines make work easier by changing direction of a force, multiplying a force, or increasing.
Machines Help people do work DOES NOT DECREASE the AMOUNT of work done—makes work easier! CHANGES the way work is done: Size of force Distance over.
Lecture 21 Using Machines Ozgur Unal
Simple Machines Outline Notes
Chapter 7 Review. Why we use machines A machine is a device that makes work easier. A simple machine is a device that does work with only one movement.
Machines. Work and Power Power is the rate at which work is done Power = Work time Remember that W = Fd So, Power = Fd t Power is measured in Watts –1.
Physical Science Chapter 12. devices that change the direction of a force or the size of a force that help us to do work machines will multiply your.
12.3 Simple Machines.
Simple Machines W O R K M e c h a n i c a l A d v a n t a g e Force Effort E f f i c i e n c y 1.
Simple Machines Chapter 5 Section 3. Lever A lever is a bar that is free to pivot or turn around a fixed point. The lever pivots on a fulcrum. The input.
Simple machines 6 types of simple machines, mechanical advantage of each type and compound machines.
Work and Machines Chapter 5. What machines do you use in your life to help you do some type of work?
Warm Up 1. What simple machine is a ladder?
Work and Machines Chapter 5 Sec 2. What is a Machine? Any device that makes work easier.
Machines, Mechanical Advantage, and Efficiency. Ideal Machines In an ideal machine, work going in is equal to the work going out, this means it has 100%
WORK POWER SIMPLE MACHINES. I. WORK 1. What is work? A force acting through a distance No work is done on the object unless the object moves and the.
Chapter 5 Machines and Mechanical Systems. Forces in Machines How do you move something that is too heavy to carry? How were the pyramids built? Simple.
Simple Machines. Types of Simple Machines How do machines make work easier? Machines make work easier by: multiplying the size of the force you exert.
Work, Power, and Machines Glencoe Chapter 5. A. Work is the transfer of energy that occurs when a force makes an object move. 1. For work to occur, an.
Test 6: Chapter 5 Work & Machines Honors Physical Science.
Chapter 14 Lesson 4 The Simple Machine.
Chapter 5: Machines II. The Simple Machines Inclined Plane Lever Screw
Forces Screws & Levers Who Am I? True or False Name.
Chapter 5 Lesson 3.
Work and Machines Simple Machines. Work and Machines Machines make work easier to do –They change the size of a force needed, the direction of a force,
Simple Machines. Machine Machine- A tool used to make work easier.
Chapter 15 Machines What is a simple machine? People use machines to make work easier They allow a person to -change the size of the force -change.
Simple Machines The six types of simple machines are:
© 2017 SlidePlayer.com Inc. All rights reserved.