Levers

56 %
44 %
Information about Levers
Entertainment

Published on March 7, 2014

Author: joberg33

Source: authorstream.com

Levers: Levers For Mrs. Berg’s Science Class A lever consists of a rod or bar that rests and turns on a support called a fulcrum. :  A lever consists of a rod or bar that rests and turns on a support called a fulcrum . effort resistance A force of effort is applied at one end of the rod to lift a load placed at the other end. A lever can help lift a weight with less effort. :  A force of effort is applied at one end of the rod to lift a load placed at the other end. A lever can help lift a weight with less effort. effort resistance fulcrum Prying something loose with a crowbar is using a lever. Some machines, such as a catapult, use a lever to hurl objects.: Prying something loose with a crowbar is using a lever. Some machines, such as a catapult, use a lever to hurl objects. Here is a catapult you could make.: Here is a catapult you could make. Three Classes of Levers: Three Classes of Levers First Class Lever The fulcrum is between the effort force and the resistance force. resistance fulcrum effort Three Classes of Levers: Three Classes of Levers Second Class Lever The resistance is between the effort and the fulcrum. Three Classes of Levers: Three Classes of Levers Third Class of Lever The effort is between the fulcrum and the resistance. PowerPoint Presentation: First Class Lever Second Class Lever Third Class Lever Levers on the internet: Levers on the internet Check out these websites! http://www.dynamicscience.com.au/tester/solutions/hydraulicus/simplemachineslevers1.htm LEVERS in our BODIES! http://www.dynamicscience.com.au/tester/solutions/hydraulicus/humanbody.htm http://www.montgomery.k12.ky.us/camargo/Projects/simplemachines/simplemachines.htm Levers in the Body: Levers in the Body An example of a first-class lever is the joint between the skull and the atlas vertebrae of the spine: the spine is the fulcrum across which muscles lift the head. An example in the human body of a second-class lever is the Achilles tendon, pushing or pulling across the heel of the foot.: An example in the human body of a second-class lever is the Achilles tendon , pushing or pulling across the heel of the foot. An example of a third-class lever in the human body is the elbow joint: when lifting a book, the elbow joint is the fulcrum across which the biceps muscle performs the work.: An example of a third-class lever in the human body is the elbow joint : when lifting a book, the elbow joint is the fulcrum across which the biceps muscle performs the work. PowerPoint Presentation: First Class Lever Second Class Lever Third Class Lever Key Concepts:: Key Concepts: A lever pivots on one fixed point – up and down or side to side. To use a lever, effort is applied to one end by pushing or pulling. The lever transfers this force to move the load. Key Concepts:: Key Concepts: A lever can make work easier in the following ways: Increasing the force being applied. Changing the direction of the force. Increasing the distance or speed at which the job is done. Vocabulary: Vocabulary Simple Machine- a machine with one moving part Lever –a beam, bar, rod that turns or rotates on or around a fixed point Fulcrum – a fixed point that allows the beam to rotate around it. Work – the use of force to move an object Force –any kind of push or pull on an object Effort – the force that is used to do the work Resistance – the force (load) that works against the effort Load –the object or resistance being moved by the effort Friction – the force that is caused when 2 surfaces rub together as an object moves Mechanical Advantage – how the simple machine increases the effort PowerPoint Presentation: beam bar rod board PowerPoint Presentation: rotate Turn PowerPoint Presentation: effort Resistance / Load fulcrum work: work friction: friction Mechanical Advantage: Mechanical Advantage

Add a comment

Related presentations

Related pages

Levers - Vectorpark

Levers - Vectorpark
Read more

Lever - Wikipedia, the free encyclopedia

A lever is a beam connected to ground by a hinge, or pivot, called a fulcrum. The ideal lever does not dissipate or store energy, which means there is no ...
Read more

dict.cc Wörterbuch :: lever :: Deutsch-Englisch-Übersetzung

Englisch-Deutsch-Übersetzung für lever im Online-Wörterbuch dict.cc (Deutschwörterbuch).
Read more

Lever – Wikipedia

Das Lever (frz. se lever = aufstehen) bezeichnete einen im Schlafzimmer stattfindenden Morgenempfang in Kreisen des Hochadels. Das abendliche Gegenteil ...
Read more

dict.cc | lever | Wörterbuch Englisch-Deutsch

Übersetzung für lever im Englisch-Deutsch-Wörterbuch dict.cc.
Read more

Lever | Define Lever at Dictionary.com

That is, TFA is neither a lever for dramatically improving or ruining U.S. public education.
Read more

Lever - definition of lever by The Free Dictionary

lever diagram of the three types of levers, showing fulcrum, direction of effort, and direction of force of the load (or resistance) top: a crowbar center ...
Read more

Classes of Lever - A Design and Technology Site

Draw your own examples of the three classes of lever. Think in terms of examples that you have used at home, work or school.
Read more

Hebel - levers - mopedparts.de

Seite 1 von 1 in der Kategorie Hebel - levers. Informationen. Liefer- und Versandkosten; Privatsphäre und Datenschutz; Unsere AGB
Read more

Levers: Simple Machines - Levers- EnchantedLearning.com

Levers - a type of simple machine. ... EnchantedLearning.com is a user-supported site. As a bonus, site members have access to a banner-ad-free version of ...
Read more