Annual Examinations For Secondary Schools Worksheets - Department For Curriculum Management And Elearning Page 7
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11(ii)
The pipe in the solar collector is curved as
Hot water
shown in diagram 9.
Why is the pipe
curved?
________________________________________________
Cold water
________________________________________________
(1)
Diagram 9
(iii)
Explain why the pipe:
- is made of copper:____________________________________________________
____________________________________________________________________
(1)
- is painted black: _____________________________________________________
____________________________________________________________________
(1)
(c)
The storage tank holds up to 80 kg of water. The specific heat capacity of water is
o
o
o
4200J/kg
C. The water in the tank is heated from 25
C to 40
C.
(i)
Calculate the rise in temperature of the water in the tank.
________________________________________________________________________________
(1)
(ii)
Using the formula ΔQ = mcΔθ calculate the quantity of energy required to raise the
o
o
temperature of the water from 25
C to 40
C.
________________________________________________________________________________
________________________________________________________________________________
(2)
(iii)
The power of the electric heater is 2000 J/s. How long will it take to heat up all the
water in the tank using the electric heater only?
________________________________________________________________________________
________________________________________________________________________________
(1)
Physics – Secondary Schools – Track 2 – Form 3 – 2011
Page 7 of 11
ADVERTISEMENT
0 votes
Related Articles
Related forms
Annual Examinations For Secondary Schools 2015 (physics) Worksheets - Department For Curriculum Management
Education
Physics Annual Examinations For Secondary Schools Form 5 - Directorate For Quality And Standards In Education, 2014
Education
Physics Annual Examinations For Secondary Schools Form 5 - Directorate For Quality And Standards In Education, 2012
Education
Physics Annual Examinations For Secondary Schools Form 5 - Directorate For Quality And Standards In Education, 2013
Education
Related Categories
Parent category: Education