20 Amazing Tricks of Pressure in Science
Pressure:
- Pressure is defined as force acting normally on unit area of the surface.
- P = F/A [ Normal Force on the Surface / Area of the Surface]
- SI unit of pressure is N/M2 also called pascal (Pa).Pressure is a scaler quantity.
- If the area is less then the pressure will be more.
- Atmospheric Pressure:
- It is that pressure which is exerted by a mercury column of 76 cm length at 00c at 450 latitude at the sea level. Generally it is measured in bar.1 bar = 105 N/M2.
- Atmospheric pressure decreases with altitude. This is why
- (1) It is difficult to cook on the mountain.
- (2) The fountain pen of a passenger leaks in aeroplane.
- Atmospheric pressure is measured by barometer. With the help of barometer, weather forecast can be made.
- Sudden fall in barometric reading is the indication of storm.
- Slow fall in barometric reading is the indication of rain.
- Slow rise in the barometric reading is the indication of clear weather.
20 Amazing Tricks of Pressure in Science
Pressure in liquid :
- The pressure exerted by liquid at depth h below the surface of the liquid is given as
- P = hdg where d is the density of the liquid.
- In a static liquid, pressure is same at all points.
- Pascal law : If gravitational attraction is negligible , in equilibrium condition, pressure is same at all points in a liquid. The size of vessel does not affect the pressure of the liquid.
- Hydraulic lift, hydraulic press, hydraulic brake work on pascal law.
20 Amazing Tricks of Pressure in Science
- Effect of pressure on melting point :
- The melting point of substances which expands on fusion increases with the increase in pressure.
- For example: wax, ghee.
- The melting point of substances which contracts on fusion decreases with the increase in temperature.
- For example: ice.
20 Amazing Tricks of Pressure in Science
- Effect of pressure on boiling point :
- Boiling point of all the substances increases with the increase in pressure.
- Pressure cooker :
- If the pressure is increased then the boiling point of water also increases that is why the more energy is stored. There is no effect of the height on pressure cooker.
20 Amazing Tricks of Pressure in Science
20 Amazing Tricks of Pressure in Science
JOIN NOW
TARGET NO-1 CLASSES
{A UNIT OF}
EXECUTIVE MAKERS PVT.LTD.
FOR
ONLINE AND OFFLINE COURSES
FOR ALL ACADEMIC & COMPETITIVE EXAMS
CONTACT AT : 8445003800
20 Amazing Tricks of Pressure in Science
20 Amazing Tricks of Pressure in Science
Learn ‘Infinitive’ in English Grammar……..Click on Picture…..
20 Amazing Tricks of Pressure in Science
Study ‘SSCGD QUIZ’ ……..Click on Picture…..
20 Amazing Tricks of Pressure in Science
20 Amazing Tricks of Pressure in Science
Study ‘CAT QUIZ’ ……..Click on Picture…..
Study ‘APTITUDE QUIZ FOR B Tech Passed Out Students’ ……..Click on Picture…..
20 Amazing Tricks of Pressure in Science
20 Amazing Tricks of Pressure in Science
Study ‘UPSSSC PET QUIZ ‘ ……..Click on Picture…..
20 Amazing Tricks of Pressure in Science
MORE BOOKS : DOWNLOAD NOW…….GET PERFECTION
VIDEO CLASSES :
What is Infinitive in English Grammar ? Click on this..
How to use Mathematics Trick ? Click on this…..
Learn French. Click On This…..
Learn Tricky SSC Mathematics……..
How to Learn Trigonometry……..
20 Amazing Tricks of Pressure in Science
YOU TUBE CHANNEL
https://www.youtube.com/channel/UCqgZUcwNLD-qinXvLAqZTog
REASONING
https://executivemakers.com/product/v82-reasoning-700-questions-full-solved/
उत्तर प्रदेश जनरल STUDY
https://executivemakers.com/product/v93-uttar-pradesh-gk/
We are Target No-1 Classes
A unit of
Executive Makers Pvt Ltd
Online and Offline batches start for all competitive and Academic courses…….
Download App…..Executive Makers
https://play.google.com/store/apps/details?id=co.thor.qccyq
ONILNE COURSES :
AFCAT ENGLISH
https://qccyq.courses.store/97976?utm_source%3Dother%26utm_medium%3Dtutor-course-referral%26utm_campaign%3Dcourse-overview-webapp
ENGLISH GRAMMAR & WORD POWER
https://qccyq.courses.store/76719?utm_source%3Dother%26utm_medium%3Dtutor-course-referral%26utm_campaign%3Dcourse-overview-webapp
FOR MATHEMATICS
https://qccyq.courses.store/35906?utm_source%3Dother%26utm_medium%3Dtutor-course-referral%26utm_campaign%3Dcourse-overview-webapp
CAT
https://qccyq.courses.store/243640?utm_source%3Dother%26utm_medium%3Dtutor-course-referral%26utm_campaign%3Dcourse-overview-webapp
CTET PRIMARY & UPPER
https://qccyq.courses.store/133043?utm_source%3Dother%26utm_medium%3Dtutor-course-referral%26utm_campaign%3Dcourse-overview-webapp
SUPER TET
https://qccyq.courses.store/131047?utm_source%3Dother%26utm_medium%3Dtutor-course-referral%26utm_campaign%3Dcourse-overview-webapp
AIRFORCE Y
https://qccyq.courses.store/75060?utm_source%3Dother%26utm_medium%3Dtutor-course-referral%26utm_campaign%3Dcourse-overview-webapp
AND MANY MORE…..
Download App…..Executive Makers
https://play.google.com/store/apps/details?id=co.thor.qccyq
LINKS FOR BOOKS :
ENGLISH GRAMMAR
https://executivemakers.com/product/complete-book-v188-english-grammar-for-all-competitive-exams/
SSC ENGLISH QUIZ
https://executivemakers.com/quiz-english-ssc-cgl-important-questions/
ENGLISH SPELLING TEST
https://executivemakers.com/product/tp-103-english-language-spelling-test-set-5/
ENGLISH FOR TET
https://executivemakers.com/product/v154-uptet-special-english-workbook-pdf-bilingual/
REASONING SERIES
https://executivemakers.com/product/tp-123-find-next-term-in-series-reasoning-set-5/
REASONING BOOK
https://executivemakers.com/product/v185-bilingual-reasoning-workbook/
REASONING SET PAPER
https://executivemakers.com/product/tp-37-reasoning-in-hindi-set-2/
TRICKY ARITHMETIC BOOK
https://executivemakers.com/product/tricky-maths-v187-bilingual-mathematics-book-for-all-competitive-exams/
ENGLISH WORD POWER
https://executivemakers.com/product/v172-english-word-power-idioms-one-words-phrases/
ENGLISH WORD POWER
https://executivemakers.com/product/v171-english-synonyms-antonyms-pdf/
QUIZZES:
RMS ENGLISH QUIZ
https://executivemakers.com/quiz-english-rimc-entrance-exam-2/
SAINIK SCHOOL QUIZ
https://executivemakers.com/quiz-english-sainik-school-entrance-exam-2/
RIMC ENGLISH QUIZ
https://executivemakers.com/quiz-english-rimc-entrance-exam/
AIRFORCE ENGLISH
https://executivemakers.com/airforce-x-y-english-quiz-03/
NDA ENGLISH
https://executivemakers.com/special-nda-english-champion-quiz-02/
AFCAT ENGLISH
https://executivemakers.com/afcat-airforce-english-quiz-01/
CAT (MBA)
https://executivemakers.com/quiz-cat-common-aptitude-test-for-mba/
BTECH APTITUDE TEST
https://executivemakers.com/free-quiz-b-tech-aptitude-quiz-01-english-mathematics-reasoning/
TET MATHEMATICS
https://executivemakers.com/quiz-tet-mathematics/
DELHI POLICE
https://executivemakers.com/%e0%a4%a6%e0%a4%bf%e0%a4%b2%e0%a5%8d%e0%a4%b2%e0%a5%80-%e0%a4%aa%e0%a5%81%e0%a4%b2%e0%a4%bf%e0%a4%b8-%e0%a4%b9%e0%a5%87%e0%a4%a1-%e0%a4%95%e0%a4%be%e0%a4%82%e0%a4%b8%e0%a5%8d%e0%a4%9f%e0%a5%87/
SAINIK SCHOOL MATHEMATICS
https://executivemakers.com/free-quiz-sainik-school-mathematics/
RMS MATHEMATICS
https://executivemakers.com/free-quiz-rms-mathematics/
SSC CGL MATHEMATICS
https://executivemakers.com/ssc-cgl-mathematics-quiz/
20 Amazing Tricks of Pressure in Science
PET EXAM
https://executivemakers.com/upsssc-pet-quiz-all-subjects/
B TECH APTITUDE QUIZ
https://executivemakers.com/b-tech-aptitude-quiz-for-interview/
CTET QUIZ
https://executivemakers.com/free-quiz-ctet-primary-mathematics-questions/
UP POLICE BOOK
https://executivemakers.com/product/v131-up-police-book-pdf-in-hindi/
MATHS FOR UPTET, CTET AND SUPER TET
https://executivemakers.com/product/v170-maths-special-book-pdf/
GENERAL STUDIES ONE LINER
https://executivemakers.com/product/v169-general-studies-one-liner/
SCIENCE OBJECTIVE
https://executivemakers.com/product/v165-science/
ADVANCED MATHS
https://executivemakers.com/product/v164-the-advanced-mathematics/
ALZEBRA
https://executivemakers.com/product/v163-tricky-alzebra/
SCIENCE DESCRIPTIVE
https://executivemakers.com/product/v117-science-descriptive-pdf-in-english/
ENGLISH SET PAPERS
https://executivemakers.com/product/v99-english-set-papers-pdf/
GENERAL STUDIES SET PAPERS IN HINDI
https://executivemakers.com/product/v98-up-police-gk-set-papers-pdf-in-hindi/
BANK SET PAPERS
https://executivemakers.com/product/v97-sbi-bank-clerk-set-papers-pdf-in-hindi/
UP POLICE SET PAPERS
https://executivemakers.com/product/v96-up-police-set-papers-pdf
20 Amazing Tricks of Pressure in Science