IB DP Physics Mock Exam HL Paper 1A Set 1 - 2025 Syllabus
IB DP Physics Mock Exam HL Paper 1A Set 1
Prepare for the IB DP Physics Mock Exam HL Paper 1A Set 1 with our comprehensive mock exam set 1. 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
Jim runs with a constant velocity v past Sally who is at rest. At this instant, Sally begins to chase Jim with constant acceleration a. Which expression gives the time Sally will catch Jim?
▶️Answer/Explanation
Ans C
Question
The diameter of a particular circle is equal to the length of the side of a square. The length of one side of the square is \(d ± \Delta d\).
The area of the circle is \(\pi \times \frac{d^2}{4}\)?
What is the \(\frac{fractional uncertainty in the area of the square}{fractional uncertainty in the area of the circle}\)?
A. \(\frac{4}{\pi }\)
B. 1
C. \(\frac{\pi }{4}\)
D. \(\frac{1}{2 }\)
▶️Answer/Explanation
Ans B
Question
A particle X has a small positive charge and is free to move. Y has a large positive charge and is fixed. X is initially moving towards Y.
Y exerts an electric force F on X. Gravitational forces are negligible. The magnitude of the force exerted by X on Y is
A. zero.
B. less than the magnitude of F.
C. equal to the magnitude of F.
D. greater than the magnitude of F.
▶️Answer/Explanation
Ans C
Question
A flywheel of moment of inertia $0.50 \mathrm{~kg} \mathrm{~m}^2$ rotates anti-clockwise with an initial angular velocity of $15 \mathrm{rad} \mathrm{s}^{-1}$. A torque is applied to the flywheel and its angular velocity changes to $25 \mathrm{rad} \mathrm{s}^{-1}$, rotating clockwise.
What is the angular impulse delivered to the flywheel?
A. $5.0 \mathrm{Nms}$
B. $10 \mathrm{Nms}$
C. $20 \mathrm{Nms}$
D. $40 \mathrm{Nms}$
Answer/Explanation
Ans:C
Question
A layer of mercury traps a volume of gas in a tube. The tube is placed in a water bath and slowly heated. When the temperature of the water is 300 K the height of gas h in the tube is 150 mm.
What is h when the temperature of the water is 360 K?
A. 120 mm
B. 180 mm
C. 300 mm
D. 360 mm
▶️Answer/Explanation
Ans B