2 The graph shows the way the potential energy of a body varies with its displacement from a point Z. feature of the graph means that the force on the body is directed towards Z? A The graph is approximately linear for large displacements. B The graph passes through the origin. C The potential energy increases as the body further from Z. D The of potential energy, when not at Z, is always positive. Your answer 3 The rise and fall of water in a harbour is simple harmonic. The depth varies between 1.0 m at low tide and 3.0 m at high tide. The time between successive low tides is twelve hours. A boat which requires a minimum water depth of 1.5 m approaches the harbour at low tide. How long must it wait before being able to enter the harbour. A 1.0 hour B 1.5 C 2.0 D 3.0 hours
2 The graph shows the way the potential energy of a body varies with its displacement from a point Z. feature of the graph means that the force on the body is directed towards Z? A The graph is approximately linear for large displacements. B The graph passes through the origin. C The potential energy increases as the body further from Z. D The of potential energy, when not at Z, is always positive. Your answer 3 The rise and fall of water in a harbour is simple harmonic. The depth varies between 1.0 m at low tide and 3.0 m at high tide. The time between successive low tides is twelve hours. A boat which requires a minimum water depth of 1.5 m approaches the harbour at low tide. How long must it wait before being able to enter the harbour. A 1.0 hour B 1.5 C 2.0 D 3.0 hours
Rise%20and%20Fall.docx