This PPT Is made by Rehet Kaur Bhatia 8D And Is made with a lot of hardwork and Peace and it is not to copy . About the chapter The topic of Force and Pressure is one of the important concepts in science. It is very important to grasp every bit of this chapter as they are basics for all your future endeavours.
This PPT Is made by Rehet Kaur Bhatia 8D And Is made with a lot of hardwork and Peace and it is not to copy . About the chapter The topic of Force and Pressure is one of the important concepts in science. It is very important to grasp every bit of this chapter as they are basics for all your future endeavours.
Summary
Definition
Friction is a catchall word that refers to any force that resists relative tangential motion (or intended motion).
"Relative tangential motion" is a fancy way to say "slipping" or "sliding".
Its direction is opposite the relative velocity (or intended velocity).
Types
Dry friction
The resistive force between solid surfaces in contact that resists their relative tangential motion.
"Friction" is often synonymous with "dry friction".
Viscous friction-
for more.......... go to this link :)
http://physics.info/friction/summary.shtml
Summary
Definition
Friction is a catchall word that refers to any force that resists relative tangential motion (or intended motion).
"Relative tangential motion" is a fancy way to say "slipping" or "sliding".
Its direction is opposite the relative velocity (or intended velocity).
Types
Dry friction
The resistive force between solid surfaces in contact that resists their relative tangential motion.
"Friction" is often synonymous with "dry friction".
Viscous friction-
for more.......... go to this link :)
http://physics.info/friction/summary.shtml
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
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.
1. Y E A R 9 – L I G H T & S O U N D
WAVES IN A SLINKY
By S. Choi
2. AIM & HYPOTHESIS
• Aim: To observe
transverse and
longitudinal waves in a
slinky.
• Hypothesis: Write your
own hypothesis in your
experimental report.
3. BACKGROUND INFORMATION
• Waves are vibrations that
transfer energy from place
to place.
• Waves can either be
mechanical (need
medium) or
electromagnetic (does
NOT need a medium).
• Waves can also be
categorised as transverse
or longitudinal waves.
4. EQUIPMENT
• 1 × slinky
• 1 × camera/phone
• 1 × coloured tape or
string
• 1 × mobile phone or
chromebook with
GIFPAL app working
6. METHOD
Part A – Transverse waves
1. Place the slinky on the floor.
2. Attach the coloured tape or
string onto the middle of the
slinky.
3. Have TWO people hold the
each end of the slinky and
stretch the slinky out in a
straight line.
4. Move ONE end of the slinky
side to side. Use GIFPAL to
create animated gif of slinky
movement.
5. Describe the movement of the
coloured tape/spring under the
results.
DON’T stretch the slinky out too far!
7. METHOD
Part A – Transverse waves
1. Place the slinky on the floor.
2. Attach the coloured tape or
string onto the middle of the
slinky.
3. Have TWO people hold the
each end of the slinky and
stretch the slinky out in a
straight line.
4. Move ONE end of the slinky
back and forth. Use GIFPAL
to create animated gif of slinky
movement.
5. Describe the movement of the
coloured tape/spring under the
results.
DON’T stretch the slinky out too far!
8. RESULTS
Part A – Transverse waves
• Upload your animated gif file in your experimental report
• Direction of the wave: …………….
• Direction of the coloured tape/string: …………….
Part B – Longitudinal waves
• Upload your animated gif file in your experimental report
• Direction of the wave: …………….
• Direction of the coloured tape/string: …………….
9. DISCUSSION
1. What does the coloured tape/string represent?
2. Draw a diagram comparing the movement of the
coloured tape/string and the direction of the wave in the
transverse wave (Click Insert à Drawing…).
3. Provide ONE example of a transverse wave in real life.
4. Draw a diagram comparing the movement of the
coloured tape/string and the direction of the wave in the
longitudinal wave (Click Insert à Drawing…).
5. Provide ONE example of a longitudinal wave in real
life.
6. What kind of energy is transferred through the slinky?
