IB DP Physics Mock Exam SL Paper 2 Set 4 - 2025 Syllabus
IB DP Physics Mock Exam SL Paper 1B Set 4
Prepare for the IB DP Physics Mock Exam SL Paper 2 Set 4 with our comprehensive mock exam set 4. Test your knowledge and understanding of key concepts with challenging questions covering all essential topics. Identify areas for improvement and boost your confidence for the real exam
Question
(a) Identify the laws of conservation that are represented by Kirchhoff’s circuit laws. [2]
(b) A cell is connected to an ideal voltmeter, a switch S and a resistor R. The resistance
of R is 4.0Ω.
When S is open the reading on the voltmeter is 12V. When S is closed the voltmeter
reads 8.0V.
(i) State the emf of the cell. [1]
(ii) Deduce the internal resistance of the cell. [2]
(c) The voltmeter is used in another circuit that contains two secondary cells.
Cell A has an emf of 10V and an internal resistance of 1.0Ω. Cell B has an emf of 4.0V
and an internal resistance of 2.0Ω.
Calculate the reading on the voltmeter. [3]
(d) Electricity can be generated using renewable resources.
(i) Outline why electricity is a secondary energy source. [1]
(ii) Some fuel sources are renewable. Outline what is meant by renewable. [1]
(e) (i) A fully charged cell of emf 6.0V delivers a constant current of 5.0A for a time of
0.25 hour until it is completely discharged.
The cell is then re-charged by a rectangular solar panel of dimensions
0.40m × 0.15m at a place where the maximum intensity of sunlight
is 380Wm−2.
The overall efficiency of the re-charging process is 18%.
Calculate the minimum time required to re-charge the cell fully. [3]
(ii) Outline why research into solar cell technology is important to society. [1]
Answer/Explanation
Ans.
