Form 2 Track 2 Physics Worksheet - Annual Examinations For Secondary Schools, 2012 Page 9
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11vi.
Peter suggests placing a lid over the beakers to reduce heat loss. Do you agree?
Explain.
________________________________________________________________________________
________________________________________________________________________________
(2)
b.
A coolant pack is used to treat an injured ankle of a football
o
player. The pack of mass 0.5 kg is initially cooled to 2
C.
The pack is then placed on the injured ankle.
coolant
pack
i.
After some time the temperature of the pack rises to
o
7
C. What is the change in temperature of the pack?
________________________________________________________________________________
(1)
ii.
Calculate the energy absorbed by the pack.
o
(specific heat capacity ‘c’ of pack = 2100 J/kg
C)
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(3)
iii.
From where does most of the energy required to raise the temperature of the coolant
pack come from?
________________________________________________________________________________
(1)
Physics – Form 3 Secondary – Track 2 – 2012
Page 9 of 11
ADVERTISEMENT
0 votes
Related Articles
Related forms
Physics Annual Examinations For Secondary Schools Form 5 - Directorate For Quality And Standards In Education, 2012
Education
Annual Examinations For Secondary Schools 2015 (physics) Worksheets - Department For Curriculum Management
Education
Related Categories
Parent category: Education