Friction is a force that slows down moving objects or prevents stationary objects from moving .
Friction is a contact force .
Friction produces heat .
For example – A matchstick
Friction opposes the motion of an object
When one surface moves over another , these grooves and ridges get caught up with each other and slow down the motion . This causes friction .
Friction is a force that slows down moving objects or prevents stationary objects from moving .
Friction is a contact force .
Friction produces heat .
For example – A matchstick
Friction opposes the motion of an object
When one surface moves over another , these grooves and ridges get caught up with each other and slow down the motion . This causes friction .
For classroom teaching of the various forms of energy at about the early middle school level. Lots of animations. Would like some feedback if it downloads and plays ok.
What is Pulley - Parts Types Examples Advantages and DisadvantagesChloe Cheney
Pulley is a simple machine, but it has made our lives quite easy. Read our blog on pulleys and learn its types, advantages, disadvantages, and usage in everyday life.
A simple machine is a mechanical device that changes the direction or magnitude of a force.[1] In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called leverage) to multiply force.Usually the term refers to the six classical simple machines that were defined by Renaissance scientists
A simple machine uses a single applied force to do work against a single load force. Ignoring friction losses, the work done on the load is equal to the work done by the applied force. The machine can increase the amount of the output force, at the cost of a proportional decrease in the distance moved by the load. The ratio of the output to the applied force is called the mechanical advantage.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2. What are Simple Machines?
• A device that allows work to be performed
with less effort
• A device with few or no moving parts
• A device that makes work easier by
changing force, distance, or by changing the
direction of the force
What are Compound Machines?
Two or more simple machines working
together to make the work easier
4. Lever
A rigid bar used to exert a pressure or
sustain a weight by pivoting on its fulcrum
5. Parts of a Lever
If the fulcrum is located at the midpoint of the
lever arm and the effort is equal to the load, then
the lever will be perfectly balanced.
Lever Arm
Effort
Load
Fulcrum
6. Types of Levers
You can identify the different types of levers
by the middle component.
Can you identify each type of lever on the next slide?
8. Wheel & Axle
A wheel is a lever arm that is fixed to a
shaft, which is called an axle.
The wheel and axle move together as a
simple lever to lift or to move an item by
rolling.
17. Screw
An inclined plane wrapped
around a cylinder, forming
the path and pitch
Pitch is the distance
between two threads
A screw is used as a threaded fastener.
It changes rotary motion to linear force.
19. What Kind of Simple
Machine Is This?
Pulley
Lever
Wedge
Screw
Wheel and Axle
Inclined Plane
20. Compound Machines
• Compound machines consist of two or
more simple machines put together.
• Most devices are compound machines.
• They can do more difficult jobs because
their mechanical advantage is greater.
What two simple machines are
in scissors?
First Class Lever and Wedge
22. Image Resources
Microsoft, Inc. (2009). Clip Art. Retrieved January 22, 2009, from
http://office.microsoft.com/en-us/clipart/default.aspx
Editor's Notes
First Class = See-saw, scissors, fingernail clipper arm
Second Class = wheelbarrow, nut cracker
Third Class = fingernail clipper clipping mechanism, tweezers
Fixed Pulley – Does not rise or fall with the load that is being moved
Movable Pulley – Rises and falls with the load that is being moved
Block and Tackle – Two or more pulleys used in combination
Bicycle – lever (brake handles), wheel and axle (wheels and pedals), screw (seat adjustment)
Shovel – lever, wedge
Wheel barrow – 2nd class lever, wheel and axle
Jack stand – wheel and axle, screw
Pencil sharpener – wheel & axle, wedge
