Annual Examinations For Secondary Schools Worksheets - Department For Curriculum Management And Elearning Page 6
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11SECTION B: This section carries a total of 45 marks.
6.
This question is about heat energy.
(a)
(i)
Energy flows from a human hand to a room at a rate of 1.5 W. Calculate the
quantity of heat energy flowing from the hand to the room in 180 s.
________________________________________________________________________________
________________________________________________________________________________
(2)
(ii)
Heat energy from a human hand is transferred mainly by means of two processes.
Complete diagram 7 below by entering the name of these processes.
R___________
C___________
Diagram 7
(2)
(iii)
Joseph lowers his hand in water at room temperature.
Complete:
The water feels colder as it is a better ____________________ of heat than air.
(1)
(b)
Diagram 8 shows a solar panel unit.
(i)
Fill in the missing spaces with one of
the words below:
reflect, absorb, tank,
solar,
wind.
The glass solar panel traps the __________ energy.
The black copper pipes __________ the heat energy
which warms the water. The water is stored in the
__________.
(3)
Diagram 8
Page 6 of 11
Physics – Secondary Schools – Track 2 – Form 3 – 2011
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