Welcome to P1 - Energy for the Home page. Here you will find a series of resources including Powerpoints, Revision Materials and Documentaries that you need to revise for this module.
Below you will find the target sheets for the topic. Use these sheets to structure your revision. Print out and stick these sheets in the front of your books.
Below you will find the target sheets for the topic. Use these sheets to structure your revision. Print out and stick these sheets in the front of your books.
p1_checklist_lesson.doc | |
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p1_checklist_worksheet_aim_a.doc | |
File Size: | 111 kb |
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Powerpoints
Revision
Related Documentaries
Literacy Practise
Youtube Clips
What do I need to know for P1?
P1a: Energy
As a revision guide you should be able to do ythe following:
Recognise that hot objects have high temperatures and tend to cool down.Recognise that cold objects have low temperatures and tend to warm up.
Recognise that for warm bodies the higher the temperature the quicker they cool.
State that temperature is measured in ºC.
State that energy (heat) is measured in J.
Apply knowledge that the energy needed to change the temperature of a body depends on:• mass;• the material it is made from;• the temperature change.
Plan an experiment to measure the energy required to change the temperature of a body.
State that energy is needed to melt or boil things.
Interpret data which shows that there is no temperature change when materials are:• boiling;• melting or freezing.
If you are a pupil taking the higher tier paper you should laso be able to do the following:Explain in the context of the home the concepts of conduction, convection and radiation (absorption and emission) in terms of:• the design features of the home;• the design and use of everyday appliances in the home;• energy saving strategies.
State and use the equation:
efficiency = useful energy output / total energy input(A change of subject is required.)
As a revision guide you should be able to do ythe following:
Recognise that hot objects have high temperatures and tend to cool down.Recognise that cold objects have low temperatures and tend to warm up.
Recognise that for warm bodies the higher the temperature the quicker they cool.
State that temperature is measured in ºC.
State that energy (heat) is measured in J.
Apply knowledge that the energy needed to change the temperature of a body depends on:• mass;• the material it is made from;• the temperature change.
Plan an experiment to measure the energy required to change the temperature of a body.
State that energy is needed to melt or boil things.
Interpret data which shows that there is no temperature change when materials are:• boiling;• melting or freezing.
If you are a pupil taking the higher tier paper you should laso be able to do the following:Explain in the context of the home the concepts of conduction, convection and radiation (absorption and emission) in terms of:• the design features of the home;• the design and use of everyday appliances in the home;• energy saving strategies.
State and use the equation:
efficiency = useful energy output / total energy input(A change of subject is required.)
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P1b: Energy for the home As a revision guide you should be able to do the following
Recognise everyday examples of energy saving methods in the home.Recognise good and bad conductors.
Recognise that curtains reduce energy loss through windows.
Recognise that many insulation materials contain air.
Apply the fact that air is a very good insulator to its use in keeping homes warm:• fibreglass or mineral wool is used as loft insulation;• double glazing in windows;• cavity-wall insulation foam;• reflective foil in or on walls;• draught-proofing. If you are a pupil taking the higer paper you should also be able to:
Describe how energy is transferred by:
• conduction - transfer of KE between particles
• convection - change of density causes (bulk) fluid flow;
• radiation – infrared radiation needs nomedium.
Explain that, unless air is trapped in foam, there will still be energy loss by convection in a cavity wall.
Recognise everyday examples of energy saving methods in the home.Recognise good and bad conductors.
Recognise that curtains reduce energy loss through windows.
Recognise that many insulation materials contain air.
Apply the fact that air is a very good insulator to its use in keeping homes warm:• fibreglass or mineral wool is used as loft insulation;• double glazing in windows;• cavity-wall insulation foam;• reflective foil in or on walls;• draught-proofing. If you are a pupil taking the higer paper you should also be able to:
Describe how energy is transferred by:
• conduction - transfer of KE between particles
• convection - change of density causes (bulk) fluid flow;
• radiation – infrared radiation needs nomedium.
Explain that, unless air is trapped in foam, there will still be energy loss by convection in a cavity wall.
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P1c: How insulation works
As a revision guide you should be able to do the following:State that air in a material is a very good insulator.
Recognise that hot air rises and is replaced by falling colder air.
Recognise that infrared energy can be reflected from a shiny surface. If you are a pupil taking the higher tier paper you should also be able to do the following:Describe how energy is transferred by:• conduction - transfer of KE between particles;• convection - change of density causes (bulk) fluid flow;• radiation – infrared radiation needs no medium.
Explain that, unless air is trapped in foam, there will still be energy loss by convection in a cavity wall.
As a revision guide you should be able to do the following:State that air in a material is a very good insulator.
Recognise that hot air rises and is replaced by falling colder air.
Recognise that infrared energy can be reflected from a shiny surface. If you are a pupil taking the higher tier paper you should also be able to do the following:Describe how energy is transferred by:• conduction - transfer of KE between particles;• convection - change of density causes (bulk) fluid flow;• radiation – infrared radiation needs no medium.
Explain that, unless air is trapped in foam, there will still be energy loss by convection in a cavity wall.
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P1d: Energy for the Home
As a revision guide you should be able to:
Interpret information on the electromagnetic spectrum to include microwaves and infrared radiation. Recognise that warm and hot objects emit radiation:
• hotter objects emit more radiation;
• black dull objects emit more radiation.
Recognise that infrared radiation is absorbed by the surface of an object causing an increase in temperature:• black surfaces are good absorbers of radiation.
Recognise that microwaves cause heating when absorbed by water and this is the basis of the State that mobile phones use microwave signals. Describe some concerns about children using mobile phones. If you are a pupil taking the higher tier you should also be able to: Explain how microwaves and infrared transfer energy to materials:• microwaves absorbed by water particles in outside layers increasing their KE;• infrared is absorbed by all particles on the surface increasing their KE;• energy transferred to centre of food by conduction or convection.Describe how the energy associated with microwaves and infrared depend on their frequency and relate this to their potential danger.
Describe how diffraction and interference of microwaves can cause signal loss:• limited distance between transmitters;• high positioning of transmitters;• nuisance of obstacles affecting signals.
As a revision guide you should be able to:
Interpret information on the electromagnetic spectrum to include microwaves and infrared radiation. Recognise that warm and hot objects emit radiation:
• hotter objects emit more radiation;
• black dull objects emit more radiation.
Recognise that infrared radiation is absorbed by the surface of an object causing an increase in temperature:• black surfaces are good absorbers of radiation.
Recognise that microwaves cause heating when absorbed by water and this is the basis of the State that mobile phones use microwave signals. Describe some concerns about children using mobile phones. If you are a pupil taking the higher tier you should also be able to: Explain how microwaves and infrared transfer energy to materials:• microwaves absorbed by water particles in outside layers increasing their KE;• infrared is absorbed by all particles on the surface increasing their KE;• energy transferred to centre of food by conduction or convection.Describe how the energy associated with microwaves and infrared depend on their frequency and relate this to their potential danger.
Describe how diffraction and interference of microwaves can cause signal loss:• limited distance between transmitters;• high positioning of transmitters;• nuisance of obstacles affecting signals.
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