Archimedes Eureka : Measuring Volume by Displacement | Physics
How do you measure the volume of your watch? With the help of Archimedes’ Eureka story! Archimedes discovered that the volume of a body can be measured by liquid displacement. ...Learning this makes it easy to understand Archimedes' Principle! Don't miss the Part 2 video on Archimedes’ Principle & buoyant force: https://youtu.be/_p-hwElkrlk Solutions of top 3 questions: https://youtu.be/8_lKYI9Zeug Try solving them to see if you got it right! The questions are shown at the end of the video.[+] Show More
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Archimedes Eureka : Measuring Volume by Displacement | Physics
How do you measure the volume of your watch? With the help of Archimedes’ [...]
How do you measure the volume of your watch? With the help of Archimedes’ Eureka story! Archimedes discovered that the volume of a body can be measured by liquid displacement. ...Learning this makes it easy to understand Archimedes' Principle! Don't miss the Part 2 video on Archimedes’ Principle & buoyant force: https://youtu.be/_p-hwElkrlk Solutions of top 3 questions: https://youtu.be/8_lKYI9Zeug Try solving them to see if you got it right! The questions are shown at the end of the video.[+] Show More
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What is density?
Which is heavier, a pound of bricks or a pound of feathers? In this video [...]
Which is heavier, a pound of bricks or a pound of feathers? In this video you find out the answer to this age old question. You will also learn how ...to find the density of objects give the mass and volume of an object.[+] Show More
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Density
016 - Density In this video Paul Andersen explains how density measures the [...]
016 - Density
In this video Paul Andersen explains how density measures the compactness of a material. You can calculate the density of a material by measuring the mass and ...dividing this by the volume. Water displacement is an effective way to measure the volume of an irregular object.
Mr Rees shows you how to calculate the density of regular and irregular [...]
Mr Rees shows you how to calculate the density of regular and irregular objects using a Eureka can and Vernier caliper, as well as calculating the concentration of a solution. ----------------------------------- 00:00 ...Density equation 01:02 Regular objects 02:30 Vernier calliper 04:06 Irregular objects - Eureka/displacement can 07:25 Density of solutions & concentration[+] Show More
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GCSE Physics - What is Pressure? #48
This video covers: - What pressure is - How to calculate it using the [...]
This video covers: - What pressure is - How to calculate it using the equation: p = F/A
General info: - Suitable for all GCSE and IGCSE courses - See below for whether ...it is higher or foundation tier for your exam board - See below for whether it is triple or combined for your exam board
Exam board specific info: AQA - Everything is relevant to your course! IGCSE Edexcel - Separate science and higher tier only Edexcel - Triple (separate) science only OCR 21st Century - Triple (separate) science only OCR Gateway - Triple (separate) science only
This video covers: - How water creates pressure - How to calculate the [...]
This video covers: - How water creates pressure - How to calculate the pressure of a submerged object (P = hpg) - What determines if something floats or sinks - What upthrust is
General ...info: - Suitable for all GCSE and IGCSE courses - See below for whether it is higher or foundation tier for your exam board - See below for whether it is triple or combined for your exam board
Exam board specific info: AQA - Separate science (triple) and higher tier only IGCSE Edexcel - You don't need to know about upthrust but everything else in suitable for everyone Edexcel - Separate science (triple) and higher tier only OCR 21st Century - Separate science (triple) and higher tier only OCR Gateway - Separate science (triple) and higher tier only
This video covers: - Which gases make up our atmosphere - Why atmosphere [...]
This video covers: - Which gases make up our atmosphere - Why atmosphere pressure decreases with increasing altitude - Why it is difficult to breathe at high altitudes
General info: - Suitable for ...all GCSE courses - See below for whether it is higher or foundation tier for your exam board - See below for whether it is triple or combined for your exam board
Exam board specific info: AQA - Separate (triple) science only IGCSE Edexcel - Not in course Edexcel - Separate (triple) science only OCR 21st Century - Separate (triple) science only OCR Gateway - Separate (triple) science only
Hydraulics might sound complicated but all they ...are, is another force multiplier. They utilise the fact that liquids are virtually incompressible, which means when you compress them, the pressure you apply to one point of the liquid is transmitted equally in all directions.
For example if you have a balloon with a few holes in it and you squeeze the top of the balloon, the water will squirt out of all of the holes. This shows that the pressure applied at the top of the balloon must have been transmitted equally to all other parts of the liquid.
In order to work with hydraulics, the equation Pressure = Force/ Cross sectional area is needed. Where pressure is measured in Pascals, force in newtons and the cross sectional area in square metres. A hydraulic system works by applying a small force to one piston to produce a much larger force to a second piston. For example, if one piston has a cross sectional area of 0.001m^2 and a force of 15N is applied to it, then since the pressure is transmitted equally to the other piston of area 0.01m^2 then the force acting on the second piston is 150N
Hydraulic systems are used in all kinds of things such as car braking systems, car jacks and on the landing gear of some aircraft. All these applications take a small effort force and produce a large load. And it’s a good job too, because I wouldn’t want to change a tyre without hydraulics.
Derby County Show Digger Exhibition - Hydraulics in Action - JCB
This is great little video which shows the power of hydraulics in action. [...]
This is great little video which shows the power of hydraulics in action. Amazing British construction.
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Hydraulics in Action
Simple model to show how hydraulics work
Simple model to show how hydraulics work
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Pressure in Syringe
Super quick video to show how the work done on a liquid is transferred [...]
Super quick video to show how the work done on a liquid is transferred through the liquid to make a change in force or distance moved by a piston. F1D1 ...= F2D2 what you gain on the force you lose on the distance[+] Show More
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Q4 and 5 5B SLG and 2C Elec and PD June 2018 iGCSE Physics
This is a quick video walkthrough of an Edexcel exam question. It is [...]
This is a quick video walkthrough of an Edexcel exam question. It is designed so you can look at questions which relate to questions from specific parts of the course.
It ...is taken from a real paper and I have used a real mark scheme which I have adapted for on-screen use. If you listen carefully it will give you a really good idea of what an examiner is looking for.[+] Show More
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Q12 4B 4D Energy 5B Pressure June 2018 iGCSE Physics
This is a quick video walkthrough of an Edexcel exam question. It is [...]
This is a quick video walkthrough of an Edexcel exam question. It is designed so you can look at questions which relate to questions from specific parts of the course.
It ...is taken from a real paper and I have used a real mark scheme which I have adapted for on-screen use. If you listen carefully it will give you a really good idea of what an examiner is looking for.[+] Show More
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Steel Floats on Liquid Mercury - Density
This shows how dense mercury really is as the steel block actually floats [...]
This shows how dense mercury really is as the steel block actually floats on top.
If you try this be aware that Mercury must be used in ventilated room, don't touch ...it or breathe in vapours.[+] Show More
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Pressure on a Plane Pringles Can
Amazing look at how pressure on a plane is less than or is on the ground. [...]
Amazing look at how pressure on a plane is less than or is on the ground. 40,000 feet makes a difference.
This was a Ryan air plane!
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Pressure on a Plane
Interesting effect when the pressure in a plane cabin drops below air [...]
Interesting effect when the pressure in a plane cabin drops below air pressure a normal bag of crisps inflates to be turgid. Here is one pack of crisps bought at ...Kos airport which has now gone very turgid.[+] Show More
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