Quiz
P1 - Part 1
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Perguntas do quiz (20)
1Temperature can be represented by a range of colours in a [blank_start]thermogram[blank_end]. Where most heat energy is [blank_start]escaping[blank_end] (hotter parts) the thermogram shows it [blank_start]white[blank_end] (hottest), [blank_start]yellow[blank_end] or red. Where [blank_start]least[blank_end] heat energy is escaping (well - [blank_start]insulated[blank_end] ) (colder parts) the thermogram shows it [blank_start]black[blank_end] (coldest), dark blue or [blank_start]purple[blank_end]
- Athermogram
- Bthermometer
- Cescaping
- Dstaying
- Ewhite
- Fgreen
- Gyellow
- Hpink
- Ileast
- Jno
- Kinsulated
- Lconducted
- Mblack
- Npurple
2What is specific heat capacity?
- AThe amount of heat energy required to melt or boil 1Kg of a material
- BThe energy needed to raise the temperature of 1Kg of the material by 1*C
- CHow much energy is transferred and where it is lost
3The amount of energy needed to raise the temperature of an object depends on:
The [blank_start]mass[blank_end] of the object
The [blank_start]change[blank_end] in [blank_start]temperature[blank_end] required
The [blank_start]specific[blank_end] [blank_start]heat[blank_end] [blank_start]capacity[blank_end] of the material that the object is made of- Amass
- Bchange
- Ctemperature
- Dspecific
- Eheat
- Fcapacity
4During the melting and boiling of water, the energy supplied is used to break the [blank_start]intermolecular[blank_end] [blank_start]bonds[blank_end] so it can change [blank_start]state[blank_end] ( instead of raising it's [blank_start]temperature[blank_end]). This is why the temperature of the material does not [blank_start]change[blank_end] - none of the energy is being used to [blank_start]heat[blank_end] up the material, it is being used to [blank_start]break[blank_end] the [blank_start]bonds[blank_end].
- Aintermolecular
- Bbonds
- Cstate
- Dtemperature
- Echange
- Fheat
- Gbreak
- Hbonds
5What is specific latent heat?
- AThe amount of energy needs to raise the temperature of 1Kg of material by 1*C
- BThe amount of heat energy required to melt or boil 1Kg of a material
- CA measure of how good an appliance is at converting input energy into useful output energy
6The amount of energy required to melt or boil 1Kg of material depends on:
The [blank_start]material[blank_end]
The [blank_start]state[blank_end] ( [blank_start]solid[blank_end], liquid or gas)- Amaterial
- Bstate
- Csolid
7Materials that allow [blank_start]heat[blank_end] energy to spread [blank_start]through[blank_end] them [blank_start]quickly[blank_end] are called conductors. [blank_start]Metals[blank_end] are good conductors of [blank_start]heat[blank_end].
- Aheat
- Bthrough
- Cquickly
- DMetals
- Eheat
8Materials that allow [blank_start]heat[blank_end] energy to spread [blank_start]through[blank_end] them much more [blank_start]slowly[blank_end] are called insulators. Most non - [blank_start]metals[blank_end] are good insulators, such as wood, plastic, glass and [blank_start]air[blank_end] .
- Aslowly
- Bheat
- Cthrough
- Dmetals
- Eair
9If an object is heated, it's [blank_start]particles[blank_end] will start to move more quickly - so a hotter object has [blank_start]faster[blank_end] moving particles. In a solid the particles move by [blank_start]vibrating[blank_end]. In a [blank_start]liquid[blank_end] and gas the particles move around, flowing past each other and moving [blank_start]further[blank_end] apart - which is why hot air is less [blank_start]dense[blank_end] and rises
- Aparticles
- Bfaster
- Cvibrating
- Dliquid
- Efurther
- Fdense
10Which of these methods of insulation reduce heat loss by conduction?
- Afibreglass loft insulation
- Breflective foil of walls behind radiators
- Ccavity wall insulation
- Ddouble glazing
- Edraught excluders
11Which of these methods of insulation reduces heat loss by convection?
- AFibreglass loft insulation
- BReflection foil on walls behind radiators
- CCavity wall insulation
- DDouble glazing
- EDraught excluders
12Which of these methods reduces heat loss by radiation?
- AFibreglass loft insulation
- BReflective foil on walls behind radiators
- CCavity wall insulation
- DDouble glazing
- EDraught excluders
13Fibreglass loft insulation reduces [blank_start]conduction[blank_end] and convection by [blank_start]trapping[blank_end] [blank_start]layers[blank_end] of [blank_start]air[blank_end] ( a good insulator ) between the [blank_start]fibres[blank_end].
Reflective foil on walls behind radiators reduces [blank_start]radiation[blank_end] by [blank_start]reflecting[blank_end] [blank_start]infrared[blank_end] [blank_start]heat[blank_end] energy into the room.
Cavity wall insulation reduces conduction and [blank_start]convection[blank_end] by [blank_start]trapping[blank_end] [blank_start]air[blank_end] ( a good insulator ) in the [blank_start]foam[blank_end].
Double glazing reduces [blank_start]conduction[blank_end] and convection by [blank_start]trapping[blank_end] [blank_start]air[blank_end] ( a good insulator ) between the panes of [blank_start]glass[blank_end].
Draught excluders reduce [blank_start]convection[blank_end] by keeping as much [blank_start]warm[blank_end] [blank_start]air[blank_end] inside as possible.- Aconduction
- Btrapping
- Clayers
- Dair
- Efibres
- Fradiation
- Greflecting
- Hinfrared
- Iheat
- Jconvection
- Ktrapping
- Lair
- Mfoam
- Nconduction
- Otrapping
- Pair
- Qglass
- Rconvection
- Swarm
- Tair
14Conduction is the transfer of [blank_start]heat[blank_end] [blank_start]energy[blank_end] through a substance from a [blank_start]hotter[blank_end] region to a [blank_start]cooler[blank_end] region without any [blank_start]movement[blank_end] of the [blank_start]substance[blank_end] itself.
As a substance is heated, the [blank_start]kinetic[blank_end] energy of the particles [blank_start]increases[blank_end] so the [blank_start]vibrate[blank_end] more. This kinetic energy is transferred between the [blank_start]particles[blank_end] in the substance through [blank_start]vibrations[blank_end] and, gradually, energy is [blank_start]transferred[blank_end] along it.- Aheat
- Benergy
- Chotter
- Dcooler
- Emovement
- Fsubstance
- Gkinetic
- Hincreases
- Ivibrate
- Jparticles
- Kvibrations
- Ltransferred
15Heat energy is also transferred by the [blank_start]free[blank_end] [blank_start]electrons[blank_end] in a metal. The electrons flow, [blank_start]collide[blank_end] with and [blank_start]transfer[blank_end] energy to other [blank_start]atoms[blank_end], increasing their [blank_start]kinetic[blank_end] energy and so the temperature [blank_start]rises[blank_end]. This is why metals are good [blank_start]conductors[blank_end].
- Afree
- Belectrons
- Ccollide
- Dtransfer
- Eatoms
- Fkinetic
- Grises
- Hconductors
16Air next to a heat source ( eg radiator) will [blank_start]warm[blank_end] up, [blank_start]expand[blank_end], become less [blank_start]dense[blank_end] and [blank_start]rise[blank_end]. It will then [blank_start]cool[blank_end]and become more [blank_start]dense[blank_end] and [blank_start]sink[blank_end]. The cooler air then [blank_start]replaces[blank_end] air which has just risen. This movement of air is called a [blank_start]convection[blank_end] [blank_start]current[blank_end].
- Awarm
- Bexpand
- Cdense
- Drise
- Ecool
- Fdense
- Gsink
- Hreplaces
- Iconvection
- Jcurrent
17Comparing light, radio and electrical signals:
1.) Light is [blank_start]fast[blank_end] but sometimes requires [blank_start]optical[blank_end] [blank_start]fibres[blank_end].
2.) Radio waves can travel [blank_start]further[blank_end], via [blank_start]satellites[blank_end] if necessary, but the signal can be [blank_start]lost[blank_end].
3.) Electrical signals are [blank_start]reliable[blank_end] and can be [blank_start]boosted[blank_end] if they get weak, but they require [blank_start]wires[blank_end]- Afast
- Boptical
- Cfibres
- Dfurther
- Esatellites
- Flost
- Greliable
- Hboosted
- Iwires
18Multiplexing is a technique where [blank_start]two[blank_end] or more [blank_start]digital[blank_end] [blank_start]signals[blank_end] can be carried down the [blank_start]same[blank_end] [blank_start]fibre[blank_end]
- Adigital
- Bsame
- Cfibre
- Dtwo
- Esignals
19Long distance communication depends on:
1.) [blank_start]Reflection[blank_end] - the ionosphere is an [blank_start]electrically[blank_end] [blank_start]charged[blank_end] [blank_start]layer[blank_end] in the earth's [blank_start]upper[blank_end] [blank_start]atmosphere[blank_end]. [blank_start]Longer[blank_end] wavelength radio waves are [blank_start]reflected[blank_end] by the ionosphere. This enables radio and television programmes to be transmitted between different places, which may be in different countries or continents ect.
2.) [blank_start]Refraction[blank_end] - at the [blank_start]interfaces[blank_end] of different [blank_start]layers[blank_end] of the Earth's [blank_start]atmosphere[blank_end], [blank_start]refraction[blank_end] of waves results in the waves changing [blank_start]direction[blank_end].
Refraction and reflection in the ionosphere keep the signals in the Earth's [blank_start]atmosphere[blank_end] instead of escaping into [blank_start]space[blank_end].- AReflection
- Belectrically
- Ccharged
- Dlayer
- Eupper
- Fatmosphere
- Greflected
- HLonger
- IRefraction
- Jlayers
- Katmosphere
- Linterfaces
- Mrefraction
- Ndirection
- Oatmosphere
- Pspace
20Negative effects on signal quality include:
1.) [blank_start]Diffraction[blank_end] (changes to the direction and intensity of waves) at the edge of transmission [blank_start]dishes[blank_end] causes the waves to [blank_start]spread[blank_end] out, which results in [blank_start]signal[blank_end] loss. [blank_start]Interference[blank_end] from similar signals limits the distance between transmitters. Positioning transmitters in [blank_start]high[blank_end] places can help to overcome the nuisance of obstacles blocking signals.
2.) [blank_start]Refraction[blank_end] at the [blank_start]interfaces[blank_end] of different [blank_start]layers[blank_end] of the Earth's [blank_start]atmosphere[blank_end] can lead to [blank_start]signal[blank_end] loss.- ADiffraction
- Bdishes
- Cspread
- Dsignal
- EInterference
- Fhigh
- GRefraction
- Hinterfaces
- Ilayers
- Jatmosphere
- Ksignal
Informações
- Descrição
- GCSE Physics Quiz sobre P1 - Part 1, criado por Verity Cartwright em 31-05-2016.
- Autor
- Verity Cartwright
- Idioma
- English
- Visualizações
- 0
- Histórico
- Criado em 31 mai 2016 · atualizado em 29 mai 2017
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