Category: GCSE Physics

Animated Science GCSE 1 to 9 Methods Summary

Animated Science 1-9 GCSE Practical Methods

This booklet of Methods is a simple reference point for the 1-9 Physics GCSE Required Practical methods.

Often questions will be based around these themes and you must learn to interpret the questions on the day as they will try and put them in unfamiliar situations.

This booklet is not designed to teach you everything in the practical’s but to be used to recap what you have already done in class. I have limited most topics to 1 or 2 pages of the bare basics.

You must be able to recall all this booklet and the ideas in it if you want to be able to answer some of the questions in your exams.

They are sure to ask about at least 2 of these topics, and most likely 4 or 5 topics in details so time spent on these topics will stand you in good stead.

Try and use this booklet as a starting point and then read more around the subject and tackle some exam questions to help you out.

Animated Science GCSE 1 to 9 Methods Summary  (PDF)

I have also included some more help on each of the Key Terms you need to know as well. It can be viewed as a PowerPoint or PDF….

Science Key Terminology in Context  (PPTX)

Science Key Terminology in Context (PDF)

GCSE 1 to 9 Summary

Permanent link to this article: https://animatedscience.co.uk/2018/animated-science-gcse-1-to-9-methods-summary

iGCSE Household Electricity

If you want to do a lesson on iGCSE Electricity 2.2 understand how the use of insulation, double insulation, earthing, fuses and circuit breakers protects the device or user in a range of domestic appliances.

Here are some resources to help you. I have attached all the lesson slides and if you work through this, you can then do an iSpring Quiz.

Household Electricity

iSpring Quiz

Permanent link to this article: https://animatedscience.co.uk/2018/household-electricity-igcse-physics

Space Revision

If you wish to do a bit of revision or learning on KS3, 4 or 5 space. Then try some of the resources here, you can have a PPT or PDF.

Feel free to use for school use, but all images are copyright so no profit or derivatives which you sell!

 

Animated Science Space Revision (PDF)

Animated Science Space Revision (PPTX)

Permanent link to this article: https://animatedscience.co.uk/2017/space-revision

Investigating Levers – Stretch Project!

Investigating Levers AQA Triple Science P3 – Stretch Project!

 

Introduction

This is a great “technical practical” that you can use to investigate how a lever works, but in
a fun practical way. It requires some tricky kit, so you might need to go do to the local tyre shop to see if they will let you have a go!

Equipment…

  • Force Sensor (range 0.1N to 500N)  (link – for suggested type of sensor)
  • Alloy rim with tyre
  • Metal Lever (0.6m)  (link – suggested type)
  • 30cm ruler
  • Black marker pen
  • Multimeter – set to ohms

 

Safety: to avoid cuts or crushing injury wear gloves and heavy duty shoes, in case your hands slip on the lever as you apply forces.

 

Method

  1. Calibrate a resistance based force sensor using weights and a multi-meter set to ohms. Create a graph so you can convert resistance to a specific force.
  2. Put car wheel on the floor on its side.
  3. Glue a force sensor to the tyre lever on the top of the “load side”
  4. Put markings for distance on a tyre lever every 0.05m from the pivot point and pivot point itself.
  5. Hold the lever with one hand at the nearest point to the pivot, apply enough force to pull the rubber over the rim.
  6. Record the distance, reading on the multimeter in a table then use the graph to convert to a load force which should also be recorded.
  7. Replace the rubber and repeat steps 5 and 6 but 0.05m further away. Record all the results in a table.
  8. Graph the load force v distance from pivot and look for a pattern.
  9. Repeat with a 2nd wheel and compare graphs.

 

Control Variables

  1. During the experiment you must control certain factors. You hand must not slip or move from the distance to the pivot
  2. Force sensor must not change angle against the rim or tyre or the results will vary for the resistance
  3. Pivot point must stay fixed
  4. Temperature may have an effect on the force sensor so all results must be collected on the same day and in the same place.

animatedscience-method

Permanent link to this article: https://animatedscience.co.uk/2016/investigating-levers-aqa-triple-science-p3-stretch-project

iGCSE Physics Forces & Astronomy

iGCSE Physics Forces & Astronomy 1d

 

image6

Here are a set of resources to help with iGCSE forces and Astronomy Section. The syllabus aims are shown below and also all the resources for the lesson. The idea is to have a printed version of the PPT ideally or use on a PC where you can edit it, or view on a tablet. As you work through the activities you should have a 2nd browser tab open for the quiz, and work through the questions as you go. Also linked from the quiz are some breakout videos to view if you get stuck. I would also suggest you download a QR Code reader so you can find any links quickly.

Syllabus…

1.32 Understand gravitational field strength, g, and recall that it is different on other planets and the moon from that on the Earth

1.33 Explain that gravitational force:

  • causes moons to orbit planets
  • causes the planets to orbit the sun
  • causes artificial satellites to orbit the Earth
  • causes comets to orbit the sun

1.34 Describe the differences in the orbits of comets, moons and planets

1.35 Use the relationship between orbital speed, orbital radius and time period

1.36 Understand that:

  • the universe is a large collection of billions of galaxies
  • a galaxy is a large collection of billions of stars
  • our solar system is in the Milky Way galaxy.

Resources…

iGCSE Forces and Astronomy 1d (PPT Version)

iGCSE Forces and Astronomy 1d (PDF Version)

Solar System Data (PDF)

Solar System Data  (Excel)

Quiz (iSpring Assessment)

iSpring PDF version (if you cannot load the quiz)

 

Weblinks

Gravitational Force F=ma extra help video

Gravitational Fields g =GM/r^2 extra help extension video

Circular Velocity v= 2πr/T extra help video

iPad QR Code Reader

Android QR Code Reader

 

[yt4wp-video video_id=”85jkZE2_oNg”]

 

Permanent link to this article: https://animatedscience.co.uk/2016/igcse-physics-forces-astronomy

Turbo Chargers – Amazing

Turbo gives petrol cars a boost as diesel faces backlash – http://www.bbc.co.uk/news/business-34731463

 

Turbo gives petrol cars a boost as diesel faces backlash

Graphic of Kia Proceed car

Looking at Kia’s new Proceed T-GDi GT-Line, with its sporty looks and handling, you might expect a big, thirsty engine under the bonnet.

Instead, it has a frugal three-cylinder 1.0 litre petrol engine that can still deliver 0-62mph (0-100km/h) in 10.7 seconds, nearly 60 miles to the gallon, and CO2 emissions of 115g/km.

A few years ago, this kind of performance would’ve been considered outstanding.

Thanks to turbo tech, these traditionally-fuelled internal combustion engines are now offering better fuel economy and lower emissions, without comparable loss of performance.

And in light of the recent Volkswagen diesel emissions scandal – and tighter emissions regulations worldwide – company car fleet directors are taking note.

VW logo on rusty Beetle

“Diesel has emerged as the dominant fuel type for company cars, as a result of great fuel efficiency, performance and low cost of ownership under the government’s CO2 emissions based tax regime,” says Gerry Keaney, chief executive of the British Vehicle Rentals and Leasing Association, whose members own or fleet manage more than three million cars in the UK.

“But the diesel proportion of new registrations has been falling gradually for some time, as modern petrol powered cars have become better at delivering similar benefits, and we expect this trend to gather pace.”

In the UK, even company car buyers now see downsized petrol engines, many emitting around 100g/km CO2, as a viable, efficient alternative to diesel.

Old-fashioned car

This is not just down to “anti-diesel sentiment”, says Al Bedwell, director, global powertrains at LMC Automotive. “It has more to do with petrol getting better and staging a fight-back, especially in small cars in Western Europe.”

Manufacturers such as Ford, Opel/Vauxhall, Hyundai and Volkswagen are all offering similarly downsized petrol engines these days, many emitting around 100g/km of CO2.

In Europe, diesel’s share of the market is set to drop from 53.3% of the market in 2014 to 51.5% in 2015, says Mr Bedwell, then continue sliding to 35% by 2020.

Power boost

Turbo chargers are traditionally associated with diesel engines, which needed a boost to give them more oomph. They weren’t “much fun to drive” without them, says Guillaume Devauchelle, head of innovation and science at automotive technology company, Valeo.

And the relative cost of adding turbo to an expensive diesel engine was lower, he explains.

Light vehicles market graphicImage copyrightGetty Images

But turbos are now increasingly infiltrating petrol engines because they deliver dramatic emissions reductions and improvements in fuel economy, without sacrificing performance, says Craig Balis, chief technology officer of Honeywell Transportation Systems, the world’s largest turbo maker.

A two-litre turbo-charged four cylinder petrol engine can match the output of a three-litre naturally aspirated V6 petrol engine, he says, so “the technology we have is really a no-compromise solution”.

Turbos work by using the engine’s exhaust gas to drive a turbine, which in turn drives a compressor, which compresses air. This air is then forced into the combustion chamber where it mixes with fuel to create additional power.

This means the engine won’t have to burn so much fuel to deliver the same output.

Video grab of smaller v, larger engine

“Our turbos for passenger vehicles have turbines that spin at 200,000-300,000 revolutions per minute (rpm), generating temperatures of up to 1,000 degrees Celsius, so the metal is literally glowing red,” Mr Balis says.

By comparison petrol engines operate at just 6,000-7,000 rpm and diesel at 5,000-6,000rpm.

To cope with such extreme speed, pressure and heat, turbos need to be incredibly robust, so Honeywell is using ball bearings and other technologies that have been developed for military aircraft by the company’s aerospace division.

The turbos are also coupled with intercoolers that cool the airflow and increases its density as it is supplied to the engine, and with oil cooling systems that prevent overheating.

Instant power

Turbos are often combined with direct or indirect fuel injectors and variable valve lift or timing systems to make the process even more efficient.

Electrified superchargers, which compress air for just a few hundred milliseconds to add brief low-end torque until the turbo charger kicks in, will also hit the market in the next few months.

Over the next five years, we’ll go from about a third to around half the cars sold having turbo chargers, and the growth will continue. We call this the ‘golden age of turbo’

Terrence Hahn, Honeywell TS

E-chargers, or e-turbos, will transform the driving experience, believes Mr Devauchelle, as they eliminate what’s called turbo lag – that slight delay in power boost you experience after pressing the accelerator.

“The turbo increases the engine’s maximum power. The e-charger gets you there even quicker,” he explains.

As such, e-turbos may rival established twin-turbo technology, where a small turbo takes care of the early stages of acceleration before the second turbo takes over.

The e-turbos’ batteries can be recharged in different ways, for instance by capturing energy during braking, explains Mr Hahn.

With enough electric power, e-chargers could take over more and more of the work done by the turbo.

Tesla electric car

Eventually carmakers will redesign vehicle architecture, moving from standard 12-volt batteries to higher voltage systems.

Forty-eight volt architecture is emerging in luxury cars with many electric components, but e-chargers can also run on 12-volt batteries if they are only required to deliver brief boosts, explains Mr Devauchelle.

‘Golden age of turbo’

“Petrol power is moving from naturally aspirated engines to turbo charged engines at a faster rate than ever before,” says Terrence Hahn, president and chief executive of Honeywell Transportation Systems.

“Over the next five years, we’ll go from about a third to around half the cars sold having turbo chargers, and the growth will continue,” he predicts.

“We call this ‘the golden age of turbo’.”

But there is no silver bullet as carmakers continue to grapple with ever-stricter emissions regulation, coupled with huge penalties for non-compliance.

Any number of combinations of e-chargers, turbo chargers, multi-stage boosting, fuel injection, variable valve systems, and combustion-electric hybrid technologies are being explored.

“During 30 years in the industry, I have never before seen so much diversity,” says Mr Devauchelle.

“Nobody can afford the penalties.”

Permanent link to this article: https://animatedscience.co.uk/2015/turbo-chargers-amazing

Load more