IB DP Physics Mock Exam HL Paper 1B Set 5 - 2025 Syllabus
IB DP Physics Mock Exam HL Paper 1B Set 5
Prepare for the IB DP Physics Mock Exam HL Paper 1B Set 5 with our comprehensive mock exam set 5. 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
The experiment is repeated with the clay block placed at the edge of the table so that it is fired away from the table. The initial speed of the clay block is \({\text{4.3 m}}\,{{\text{s}}^{ – 1}}\) horizontally. The table surface is 0.85 m above the ground.
The graph shows the variation with distance \(r\) from the centre of Mars of the gravitational potential \(V\). \(R\) is the radius of Mars which is 3.3 Mm. (Values of \(V\) for \(r < R\) are not shown.)
A rocket of mass \(1.2 \times {10^4}{\text{ kg}}\) lifts off from the surface of Mars. Use the graph to
(i) Ignoring air resistance, calculate the horizontal distance travelled by the clay block before it strikes the ground.
(ii) The diagram above shows the path of the clay block neglecting air resistance. On the diagram, draw the approximate shape of the path that the clay block will take assuming that air resistance acts on the clay block.[7]
Answer/Explanation
Ans
(i) use of kinematic equation to yield time;
\(t = \sqrt {\frac{{2s}}{g}} {\text{ (}} = 0.42{\text{ s)}}\);
\(s = {\text{horizontal speed\( \times \)time}}\);
\( = 1.8{\text{ m}}\);
Accept g = 10 m\(\,\)s\(^{ – 2}\) equivalent answers 1.79 from 9.8, 1.77 from 10.
(ii) initial drawn velocity horizontal; (judge by eye)
reasonable shape; (i.e. quasi-parabolic)
horizontal distance moved always decreasing when compared to given path / range less than original;
