Physics Sec Sample Paper Ii A Worksheet - University Of Malta, 2012 Page 3
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11(vi)
What will happen during summer when the outside temperature is
higher than the room temperature?
_____________________________________________________________________
_____________________________________________________________________
(2)
(c)
Mary is then asked to devise an experiment to compare the heat radiation
properties of solids. She heats the metal shown in the Diagram 2 and places
two thermometers A and B at the same distance from the metal.
Diagram 2
(i)
What happens to the reading of the thermometers A and B after five
minutes?
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(2)
(ii)
Explain why.
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(2)
The metal shown in Diagram 2 has a specific heat capacity of
(iii)
o
800 J/kg
C. 12,000J of heat energy are supplied to the metal to raise
o
o
its temperature from 20
C to 45
C. Work out the mass of the metal.
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_____________________________________________________________________
(3)
(iv)
Give two examples from everyday life where the principle involved in
the above investigation is applied to practical situations.
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_____________________________________________________________________
(2)
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