Thermal properties of matter Quiz (Theory)

Energy =   specific heat capacity x change in temperature 

Energy = 6.3 x 4200 x   

  Q    =   x 10 ^ 5 .                          ( final answer ) 

The   that gain   energy ,escape and they leave behind the   molecules that have   energy.

1. They are arranged in   and they are   to each other .
   They have a   motion where the molecules can   over each other.

2.   They have a   arrangement where they are   packed together.

( i ) ( Force )=   area 

      Force = 4.6 x 10 ^ 5 x  

      Force =   N 

( ii ) ( Work )  = distance 

       Work = 2300 x   

       Work done =   J                       ( final answer )

Mass = specific heat capacity x change in temperature

Mass =   x 10 ^ 6 / ( 400 x 20 ) 

Mass =  kg 

                                                                               ( final answer )

 The water   and its volume ,it becomes dense.
  dense water   to bottom .

( ii )The   vibrate (more violently) .
      they   with neighbouring .
        is passed on to other molecules.

( iii ) move apart ( on average ).
        Volume   the   decreases.

( i ) The   water  having  density also rises to     the top.
  water expands.
  Cold water . 

( ii ) Convection transfers heat . 

  energy  does not change. 

Potential energy     

( i ) Change in temperature = heat capacity 

      Change in temperature = 170.2 /   

       temperature rise = degree centigrade.       ( final answer ) 

( ii ) is lost to the surroundings  

Specific heat capacity =  m T.
                                      =   / ( 22 x 850 ) 

Specific heat capacity = J / g degree C                     ( final answer )  

Power =   current 

Power = 230 x   

Power =   W 

   Q     = 2208 x   x 60 

Thermal energy =   x 10 ^ 5 J       ( final answer ) 

Energy =   latent heat

Energy = 45 x   

Thermal energy =   J        ( final answer ). 

degree centigrade.                      ( final answer ) 

Specific heat capacity =   22 

Heat capacity = J / degree c                 ( final answer )

( ii ) Energy  =   specific heat capacity x change in temperature 

Change in temperature =   Mass x specific heat capacity 

Change in temperature = 4.636 80 x 10 ^ 5 / 1.6 x   

temperature =   degree C                             ( final answer )

( iii ) Heat in  ( air or environment ). 

Energy = specific heat x change in temperature. 

Energy = 120 x   x 79 

Thermal energy =   x 10 ^ 7 J        ( final answer ) 

Energy =  specific heat capacity x change in temperature 

Energy = 60 x 1.7 x   

Loss of thermal energy  =   J              ( final answer ) 

  colliding against molecules .
of free electrons.  

( i )   heat loss and less risk electric .

( ii ) There is very [ Less ] [ low ] [ small ]}  heat loss as white is a   emitter.

( i )       2.22  x 10 ^ 7    

    rate = x 10 ^ 6 J / h.                           ( final answer ) 

( ii ) The bricks of the heater are   so they release  energy.

( i )   are being made between the   of liquid and the molecules lose their   energy. So the heat is   but temperature stays .

( ii The   have a fixed   arrangement and they can only   on their fixed positions.

It is the amount of energy needed to change the state of    of a substance without a change in .

  at which solids into liquids.

( i ) The   point is the temperature where liquid changes to   at a constant atmospheric .

( ii ) Work done against   between
       Molecules gain   energy. 

The hot air surrounding the heater gets   up,and as it is heated its volume .
dense. 

  at which the solid changes to .

Energy = specific latent heat 

Energy = 5 x 10 ^ – 3 x   x 10 ^ 5 

Energy =   J                             ( final answer ) 

  escape into the .
They leave behind the  molecules that have   energy and they break .

  point is the temperature at which a liquid changes to .

The   have spaces in between them that air and air is a  conductor.

Shiny foil  reflects   back into the room. 

( i )   gain  kinetic energy .
  start vibrating   and move   from each other.

( ii ) change the state from   to liquid and this heat breaks the  
Molecules kinetic energy.

Conduction  is the transfer of   by the vibration of
  takes place through the connections with the heater and the  

( i ) Vapours of . 

( ii ) Energy = specific heat capacity x change in temperature 

thermal energy =  degree celsius 

 Energy =   0.39 x 16 

Thermal energy = J.                                 ( final answer )

( i ) The   are packed slightly less   as compared to the   and the arrangement is .

( ii )   is required to break the   between the liquid   and to increase the   between the molecules of  further apart.

( i ) Useful in the   of the thermometer as it   to show rise in .

( ii ) Due to continuous and contraction in summers and winters the roads .

Liquids   more than solids. 

( i ) (1) Boiling occurs at one   .
          can occur at any temperature.

( 2 )   occurs within the   while evaporation occurs at the   of the liquid.

( ii ) energy is used to break the bonds .
      Work Done  against the   forces move from each other.

Solids can only   about  their  positions.

  can over each other.

molecules are moving in a  direction.
They do not have a particular .

( i ) objects radiate heat .

( ii ) Heat loss will be very   and   will be less and the graph will be .

Meter 1:   

Meter 2 :   

( i ) Mass = density   

      Mass =   x 6.4 x 10 ^ -5 

      Mass =   kg 

 ( ii ) Weight = gravity 

        Weight = 0.0588 x   

        Weight =   N                  ( final answer )

( i ) Mass = Volume 

( 4.6 x 10 ^  -3 ) /   

          =   x 10 ^ – 5 

Mass = 1000 x 7.66 x 10 ^ – 5 

Mass =   Kg                                               ( final answer ) 

No weak   between the   in gases .
  of the gas molecules faster than . 

( i ) Amount of required to   the temperature by 1 degree celsius.

( ii ) A large amount of and a lot of time is required to .

( iii ) 1. Mass =  ( specific heat capacity x change in temperature ) 

      =  72000 / 4200 x   

Mass =  kg 

  2.      0.50 x 4200 x 54 

Specific heat capacity =   ( Mass x change in temperature) 

Specific heat capacity = 17000 / ( 0.85 x 22 ) 

Specific heat capacity =  J / kg degree centigrade.  .                 ( final

Energy =  Latent heat of fusion 

Energy = 0.0588 x x 10 ^ 5 

Thermal energy =   x 10 ^ 4. J                    ( final answer )  

Energy = specific heat capacity x change in temperature 

             = 0.077 x 4200 x   

Energy =  J  

  of liquid are not arranged .
They have a   of vibrating on their   positions.
They do not have the same .

Energy =   specific heat capacity x change in temperature 

Energy =330 x 4.2 x   

             =    J.                            ( final answer ) 

( i ) The hot air is   dense so it starts .

( ii )   with an   material .

Energy =   specific heat capacity x change in temperature 

Energy = 1 x 4.2 x 10 ^ 3 x  

Energy =  J 

Energy = Mass      

Energy =   x 3.4 x 10 ^ 5 

             =   x  10 ^ 5 J 

Energy =    specific heat capacity x change in temperature 

Energy =  1 x 2.1 x 10 ^ 5 x   

             = 10,500 J 

  + 10,500 + 3.4  x 10 ^ 5 

Energy = x 10 ^ 5 J                       ( final answer ) 

1.   energy. 
2. Efficiency =    / Energy input. 

( i ) escape from the   and this causes a effect.

( ii ) Some of the   gain energy and they escape into the .

The ice   the heat energy.
For heat .
To break . 

Stay   

Give a  temperature difference (between liquid and melting ice in jug) .

melting point =  degree centigrade.

( i ) Energy breaks the   between the   and   these molecules   from each other.

( ii )  Change in   .
        are not so far apart.
        work against the atmosphere.

It prevents the person from electric .
  The   is directly passed to the   

( i ) The hot air is  dense so it .

( ii )  The molecules of condense or changes to (on the thermometer).
 conducted from hot to gives out heat ( to the thermometer ).

  is a good conductor of   and plastic is a   conductor of heat so the plastic does not allow   transmission of energy.

Energy =  specific latent heat of fusion 

Energy = 110 x
energy =   x 10 ^ 4 J .                   ( final answer )

( i ) Power =   current 

     Power = 12 x   

     Power =   watt 

( ii ) Energy =  time
      Energy = 420 x
     ( Q ) =   x 10 ^ 4 J                     ( final answer ) 

1.   arrangement  ( of molecules ). 
2. Intermolecular distances  spaced out.
3. Position not . 

1. Energy =   time 

             = 200 x

thermal energy =   J. 

1. Energy =   specific heat capacity x change in temperature 

Energy = 100 x   x 20 

Thermal energy =  J.

1. Energy =   specific latent heat 

             =  5 x   

Thermal energy = J. 

1.    J.  

                                                                             ( final answer ) 

( i )    means  the amount of energy.

( ii ) 80 /
    =  KW 

    =  0.08 x   x 7 

     =   KW 

     =  13.44 x   

   Cost =   cents.                       ( final answer ) 

( i ) Wax is . 

( ii ) The  energy of   constant.
      Molecules .

( i ) Energy =   latent heat of fusion 

      Mass =   latent heat of fusion 

       Mass = 5.04 x 10 ^ 4 /   

       Mass =   g                     (  final answer ) 

( ii ) 1. Some of the will be lost .
      2. Heat is also lost to the .

( i ) overcome atoms pulled apart .
 

( ii ) Energy = 64 

      Thermal energy = kJ.                                                   ( final answer ) 

Water .

Energy =   specific heat capacity x change in temperature

Energy = 1.5 x 4.2 x   

Energy removed = x 10 ^ 5 J.           ( final answer )  

Mass = Density   

Mass =   x 450 

Mass =   x 10 ^ 5 kg                                      ( final answer ) 

  and convection require   to transfer   and they can not transfer   into  vacuum.

( i ) Current = voltage 

                    = 2800 /   

     current =   A

( ii )   A – 20                                   ( final answer )  

Latent heat =  Mass 

Latent heat = ( 52000 – 6000 ) /   

specific latent heat =  J / g .                 ( final answer ) 

Mass =   specific latent heat 

Mass = 1.575 x 10 ^ 5 /   x 10 ^ 5 

Mass =  kg.                              ( final answer )

( i ) Energy = specific heat capacity x change in temperature 

Energy = 4.5 x 10 ^ 5 x x 15 

Thermal energy =   x 10 ^ 7 J 

( ii ) while   a lot of  energy is lost to the  

  give passed on from one particle to another.