Simple Machines & Mechanical Advantage RHS Technology Education.

Slides:

Advertisements

Similar presentations

Simple Machines.

Advertisements

5.3 Simple Machines.

Simple Machines the six types of simple machines are the lever, wheel and axle, inclined plane, wedge, screw, and pulley.

Chapter 14: Machines.

Simple Machines.

Types of Simple Machines

Simple Machines Outline Notes

Work & Machines Chapter 5. Free Template from 2 Section 1: Work A.Work – transfer of energy that occurs when a force makes an object.

Foundations of Technology Mechanical Advantage

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.

Mouse Mischief. Yes No When a machine is used to do work, the force applied by the machine is called the effort force.

Transfer kinetic energy (the energy of motion) Reduce the effort needed to move a load Change the direction or amount of motion Change the type of motion.

Work and Machines Chapter 5 Sec 2. What is a Machine?  Any device that makes work easier.

Section 2 Simple Machines.

Machines Review and summary of important topics. Table of Contents  Work, Power & Force Work, Power & Force  Simple Machines Simple Machines  Types.

CONSTRUCTIVE THOUGHTS Simple Machines 7.2. Six Types of Simple Machines leverpulley wheel and axle inclined plane screwwedge.

5.3 Simple Machines. 6 Types  Lever Pulley Wheel and axle  Inclined Plane Screw Wedge.

12.3 Simple Machines.

Name ________________________________ Physical Science

6.3 – Simple Machines Guided notes.

Simple Machines.

Simple Machines Simple Machines. Machine vs. Simple Machine Machine: Any device that makes work easier Simple Machine ◦ A device that does work with only.

Chapter 5 Work and Machines.

1. Friction – a force that acts like a brake on moving objects.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Work and Power What Is Work? Work is the transfer of energy.

Simple Machines.

Forging new generations of engineers

Motion, Forces, and Energy Chapter 1: Motion. Recognizing Motion: Motion: –When an object’s distance changes relative to a frame of reference Frame of.

Unit 3 “Simple Machines”. Definition of a Simple Machine A device that makes work easier –Changes the size or direction of a force –Has only one motion.

MACHINES and EFFICIENCY

Simple Machines EGTECH12 Stu Egli Associate Professor Engineering Technology.

Chapter 14 Lesson 4 The Simple Machine.

REVIEW Work Power and Machines. What Is Work? Key Concepts  Work is done on an object when the object moves in the same direction in which the force.

Mechanical Advantage of the 6 Simple Machines. Content Objectives SWBAT calculate mechanical advantage for the six simple machines. Language Objectives.

Machine- a device that makes work easier by changing the direction or size of the force.

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 Simple Machines Energy. Work Work is done on an object when the object moves in the same direction in which the force is exerted. Formula:

Machine – device that makes work easier

Physics! Simple Machines!. What is work? When you exert a force on an object that causes it to move some distance Work=Force x Distance.

6.3 – Simple Machines.

Simple Machines Foldable

Work Power Simple Machines Energy

Six Simple Machines Inclined Plane Wedge Screw Lever Pulley Wheel & Axle.

ENERGY,WORK, POWER, AND MACHINES IPC Spring 2008.

Chapter 14 Work, Power, & Machines. Sec Work & Power.

CH 14.1 Work and Power. TrueFalseStatementTrueFalse Work is the product of force, distance and time Power is the amount of work done in a certain time.

Chapter 8 Work and Machines Work Simple Machines Power Simple Machines

Review of Chapter 4 Book “M”. Section 1 What is work? Work is done on an object when the object moves in the same direction in which the force is exerted.

Simple Machines.

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.

Work and Machines Chapter 5. What machines do you use in your life to help you do some type of work?

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 MAKE WORK EASIER TO DO! LEVERS, PULLEYS, INCLINE PLANE, SCREW, WHEEL AND AXEL, WEDGE.

Simple Machines, Mechanical Advantage, and Work. Machines  Machines make work easier by changing direction of a force, multiplying a force, or increasing.

Simple Machines All machines are made from the six simple machines: lever, inclined plane, wedge, screw, wheel and axle, and pulley.

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 There are 6 basic types. 1 - INCLINED PLANE An inclined plane is a flat, sloped surface How it works: *It increases distance and decreases.

II. The Simple Machines (p )

* Do work with one movement

5.3—Simple Machines.

Chapter 6 – Work and Machines

Mechanical Advantage Simple Machines.

Simple Machines Week 8 Notes

Chapter 5, Section 3 Notes Simple Machines.

Chapter 8 Section 3 Types of Machines Bellringer

Trashcan Review Ch 12 2 teams Each Questions Labeled A worth 25 pts

Presentation transcript:

Simple Machines & Mechanical Advantage RHS Technology Education

Simple Machines are Designed to… Transfer kinetic energy (the energy of motion) Reduce the effort needed to move a load Change the direction or amount of motion Change the type of motion (rotary to straight line)

Mechanical Advantage What is Mechanical Advantage? a measure of how much the effort is decreased by the simple machine. Ideal Mechanical Advantage (IMA) ignores internal friction How do I calculate IMA? IMA=Effort distance/Resistance distance

Lever A lever is a stiff bar which rotates around a point called the fulcrum. Can you list some examples of a lever?

1 st Class Levers

2 nd Class Lever

3 rd Class Lever

Mechanical Advantage of Lever IMA= Effort Arm (Effort to Fulcrum)/Resistance Arm (Resistance to Fulcrum)

Wheel and Axle A Wheel & Axle change rotary motion into linear motion IMA= Wheel Radius/ Axle Radius

Fixed Pulley Movable Pulley Block & Tackle The Three Types of Pulleys

Pulley IMA = is determined by counting the number of supporting ropes Last one over top does not count!

Inclined Plane IMA= Length of Slope/ Height of the Slope

Wedge IMA= Length of Sloped Edge / Separation Surface

Effort Inclined Plane Effort Wedge Inclined Plane vs. Wedge

Screw A screw works by using a twisting motion to create torsion

Screw IMA= 3.14x Diameter/ Distance between threads (lead)

Practice Problem Calculate the mechanical advantage of the screw shown In this example: The diameter is (1/4)” The lead is 1/20 What is the IMA of this screw?