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A Level Physics 9PH0/03 General and Practical Principles in Physics 2025 | QP & MS | Advanced | Sample Assessment Materials

Pearson Edexcel A Level Physics 9PH0/02 Advanced Physics II 2025 | QP & MS | Sample Assessment Materials | Full Solutions

Describe how ultrasound scanning is used to obtain diagnostic information about internal structures of a body. - Answer -Pulses of ultrasound (sent into the body) -Wave / ultrasound / pulse / signal is reflected (at boundary of tissue) -Time of delay used to determine depth / thickness -The fraction of reflected signal is used to identify the tissue Describe the piezoelectric effect - Answer The application of a p.d. across a material / crystal causes an expansion / contraction / vibrat...

electric current - Answer the rate of flow of charged particles voltage - Answer a measure of the amount of energy component transfer per unit of charge passing through it what is the difference between potential difference & emf? - Answer - potential difference is the electrical energy per coulomb converted to other forms - emf is the energy per coulomb supplied to a circuit resistance - Answer opposition to the flow of current within a conductor Ohm's law - Answer the current t...

Acceleration - Answer The rate of change of velocity Accurate result - Answer A result that is close to the true answer Apha decay - Answer A type of decay in which an unstable nucleus of an atom emits an alpha particle Alternating current - Answer A current that changes with time in a regular cycle Ammeter - Answer A component used to measure the current flowing through a circuit Amplitude - Answer The maximum displacement of a wave Angle of incidence - Answer The angle that i...