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Electrical Appliance

8,145 bytes added, 10:39, 4 November 2019
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{| class="wikitable"
|-
|[[File:KettleClipart.png|center|200px150px]]|[[File:TVClipart.png|center|200px150px]]|[[File:FridgeClipart.png|center|200px150px]]|[[File:ToasterClipart.png|center|200px150px]]
|-
| style="height:20px; width:200px150px; text-align:center;" |Kettle| style="height:20px; width:200px150px; text-align:center;" |Television| style="height:20px; width:200px150px; text-align:center;" |Refrigerator| style="height:20px; width:200px150px; text-align:center;" |Toaster
|-
|[[File:OvenClipart.png|center|200px150px]]|[[File:MicrowaveClipart.png|center|200px150px]]|[[File:WashingMachineClipart.png|center|200px150px]]|[[File:HairDryerClipart.png|center|200px150px]]
|-
| style="height:20px; width:200px150px; text-align:center;" |Oven| style="height:20px; width:200px150px; text-align:center;" |Microwave| style="height:20px; width:200px150px; text-align:center;" |Washing Machine| style="height:20px; width:200px150px; text-align:center;" |Hair Dryer
|}
 
==Key Stage 3==
===Meaning===
An '''electrical appliance''' is anything that needs [[electricity]] to work.
 
===About Electrical Appliances===
: '''Electrical appliances''' often have a plug to use the [[Mains Electricity]].
: Some '''electrical appliances''' use [[Electrical Cell|electrical cells]] to power them.
 
===Power Ratings===
{| class="wikitable"
|+ The Power ratings of some electrical appliances.
|-
|[[File:FilamentBulbClipart.png|center|50px]]
|[[File:EnergySavingBulbClipart.png|center|50px]]
|[[File:VacuumCleanerClipart.png|center|150px]]
|[[File:IronClipart.png|center|150px]]
|-
| style="height:20px; width:150px; text-align:center;" |Filament Bulb ~ 60[[Watt]]s
| style="height:20px; width:150px; text-align:center;" |Energy Saving Bulb ~ 25[[Watt]]s
| style="height:20px; width:150px; text-align:center;" |Vacuum Cleaner ~ 800[[Watt]]s
| style="height:20px; width:150px; text-align:center;" |Iron ~ 1100[[Watt]]s
|-
|[[File:KettleClipart.png|center|150px]]
|[[File:TVClipart.png|center|150px]]
|[[File:FridgeClipart.png|center|150px]]
|[[File:ToasterClipart.png|center|150px]]
|-
| style="height:20px; width:150px; text-align:center;" |Kettle ~ 2000[[Watt]]s
| style="height:20px; width:150px; text-align:center;" |Television ~ 250[[Watt]]s
| style="height:20px; width:150px; text-align:center;" |Refrigerator ~ 200[[Watt]]s
| style="height:20px; width:150px; text-align:center;" |Toaster ~ 1500[[Watt]]s
|-
|[[File:OvenClipart.png|center|150px]]
|[[File:MicrowaveClipart.png|center|150px]]
|[[File:WashingMachineClipart.png|center|150px]]
|[[File:HairDryerClipart.png|center|150px]]
|-
| style="height:20px; width:150px; text-align:center;" |Oven ~ 2500[[Watt]]s
| style="height:20px; width:150px; text-align:center;" |Microwave ~ 1000[[Watt]]s
| style="height:20px; width:150px; text-align:center;" |Washing Machine ~ 2500[[Watt]]s
| style="height:20px; width:150px; text-align:center;" |Hair Dryer ~ 600[[Watt]]s
|}
 
===Energy Usage of Appliances===
: The amount of [[energy]] an '''appliance''' uses depends on the power rating and how long the '''appliance''' is used for.
: [[Energy]] usage for '''appliances''' is measured in [[kilowatt-hour]]s. This means all [[power]] ratings need to be in [[kilowatt]]s and time should be in [[hour]]s.
: [[Energy]] can be calculated with the equation: [[Energy]] = [[Power]] x [[time]]
 
{| class="wikitable"
|+ The Power ratings of some electrical appliances.
|-
| style="height:20px; width:250px; text-align:center;" |'''Filament Bulb'''
A 60[[Watt]] filament bulb may be used for 8 hours a day. Calculate the [[energy]] in kilowatt-hours.
| style="height:20px; width:250px; text-align:center;" |'''Energy Saving Bulb'''
A 25[[Watt]] energy saving bulb may be used for 8 hours a day. Calculate the [[energy]] in kilowatt-hours.
| style="height:20px; width:250px; text-align:center;" |'''Kettle'''
A 2000[[Watt]] kettle may be used for 30 minutes a day. Calculate the [[energy]] in kilowatt-hours.
|-
| style="height:20px; width:250px; text-align:left;" |
: Power = 60W = 0.060kW
: Time = 8 hours
: Energy = Power x time
: Energy = 0.060 x 8
: Energy = 0.48kilowatt-hours
 
| style="height:20px; width:250px; text-align:left;" |
: Power = 25W = 0.025kW
: Time = 8 hours
: Energy = Power x time
: Energy = 0.025 x 8
: Energy = 0.20kilowatt-hours
 
| style="height:20px; width:250px; text-align:left;" |
: Power = 2000W = 2.0kW
: Time = 30 minutes = 0.5hours
: Energy = Power x time
: Energy = 2.0 x 0.5
: Energy = 1.0kilowatt-hours
|-
| style="height:20px; width:250px; text-align:center;" |'''Television'''
A 250[[Watt]] television is left on for 3 hours each day. Calculate the [[energy]] in kilowatt-hours.
| style="height:20px; width:250px; text-align:center;" |'''Refrigerator'''
A 200[[Watt]] refrigerator is on for 24 hours each day. Calculate the [[energy]] in kilowatt-hours.
| style="height:20px; width:250px; text-align:center;" |'''Oven'''
A 2500[[Watt]] oven is used for 45 minutes each day. Calculate the [[energy]] in kilowatt-hours.
|-
| style="height:20px; width:250px; text-align:left;" |
: Power = 250W = 0.25kW
: Time = 3 hours
: Energy = Power x time
: Energy = 0.25 x 3
: Energy = 0.75kilowatt-hours
 
| style="height:20px; width:250px; text-align:left;" |
: Power = 200W = 0.20kW
: Time = 24 hours
: Energy = Power x time
: Energy = 0.20 x 24
: Energy = 4.8kilowatt-hours
 
| style="height:20px; width:250px; text-align:left;" |
: Power = 2500W = 2.5kW
: Time = 45 minutes = 0.75 hours
: Energy = Power x time
: Energy = 2.5 x 0.75
: Energy = 1.875kilowatt-hours
|}
 
==Key Stage 4==
===Meaning===
An '''electrical appliance''' is any device that needs [[electricity]] to work.
 
===About Electrical Appliances===
: '''Electrical appliances''' often have a [[Electrical Plug|plug]] to use the [[Mains Electricity]].
: Some '''electrical appliances''' use [[Electrical Cell|electrical cells]] to power them.
 
===Energy Transfers===
{| class="wikitable"
|+ [[Energy]] is always [[Energy Transfer|transferred]] to the appliances by [[electricity]].
|-
|[[File:FilamentBulbClipart.png|center|50px]]
|[[File:EnergySavingBulbClipart.png|center|50px]]
|[[File:VacuumCleanerClipart.png|center|150px]]
|[[File:IronClipart.png|center|150px]]
|-
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] of the [[Electrical Bulb|bulb]].
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] of the [[Electrical Bulb|bulb]].
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Kinetic Energy Store]] of the [[air]] and the [[Thermal Energy Store]] of the [[motor]].
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] of the [[metal]] pad.
|-
|[[File:KettleClipart.png|center|150px]]
|[[File:TVClipart.png|center|150px]]
|[[File:FridgeClipart.png|center|150px]]
|[[File:ToasterClipart.png|center|150px]]
|-
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] of the [[water]] and kettle.
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Radiation|Energy Transfer by radiation]] to the surroundings (by [[light]] and [[sound]]).
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] of the 'heat pump' at the back of the refrigerator.
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] of the bread/toast.
|-
|[[File:OvenClipart.png|center|150px]]
|[[File:MicrowaveClipart.png|center|150px]]
|[[File:WashingMachineClipart.png|center|150px]]
|[[File:HairDryerClipart.png|center|150px]]
|-
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] of the oven and food.
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] of the food.
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] of the [[Electrical Bulb|bulb]].
| style="height:20px; width:150px; text-align:center;" |[[Electricity|Electrical energy transfer]] → [[Thermal Energy Store]] and [[Kinetic Energy Store]] of the [[air]].
|}
 
 
===References===
====AQA====
 
:[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Electrical appliances, pages 18-21, 72-73, GCSE Physics; Third Edition, Oxford University Press, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Electrical appliances, power of, pages 307-8, GCSE Combined Science Trilogy 1, Hodder, AQA '']
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