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Physics VCE practice questions

Exam-style questions from Edapt's growing shared question bank, the same bank the Exam Hall draws on. Answers are not published here. Sign up free and write your answer in Edapt to have it marked question by question, to the VCE scale.

Question 1Fields and application of field concepts3 marks
A current-carrying wire has a current of $5 A$ and is placed in a magnetic field of strength $B = 0.1 T$. If the wire is at an angle of $30^circ$ to the magnetic field, calculate the force acting on the wire per unit length.
What a full answer covers
Your answer should include a calculation of the force using the equation $F = ILB sin heta$ and the correct units.
Question 2Special relativity12 marks
Explain the concept of length contraction in special relativity. Use the Lorentz transformation to derive an expression for the contracted length of an object in motion relative to an observer.
What a full answer covers
Your answer should include a clear explanation of length contraction, a derivation of the equation using the Lorentz transformation, and a discussion of its implications.
Question 3Newtonian theories of motion4 marks
An object is projected upwards from the ground with an initial velocity of $20 m/s$ at an angle of $60^circ$ to the horizontal. Calculate the time of flight and the maximum height reached by the object. Ignore air resistance.
What a full answer covers
Your answer should include calculations for the time of flight and the maximum height reached, using equations of motion.
Question 4Light and matter2 marks
What is the minimum energy required to eject an electron from a metal surface with a work function of $2.5 imes 10^{-19} J$?
What a full answer covers
Your answer should include the work function as the minimum energy required to eject an electron.
Question 5Generation and transmission of electricity8 marks
Explain the advantages and disadvantages of high voltage transmission lines in the distribution of electricity.
What a full answer covers
Your answer should include a balanced discussion of the advantages and disadvantages of high voltage transmission lines, including the role of transformers and an evaluation of their effectiveness.
Question 6Newtonian theories of motion10 marks
Derive an expression for the centripetal force acting on an object moving in a circular path, and explain the factors that affect its magnitude.
What a full answer covers
Your answer should include a derivation of the centripetal force equation and a discussion of how mass, radius, and velocity affect its magnitude.
Question 7Fields and application of field concepts3 marks
A small positive charge of $2.0 imes 10^{-6} C$ is placed at a point in a uniform electric field of strength $E = 4000 N/C$. Calculate the magnitude of the force acting on the charge and state its direction.
What a full answer covers
Your answer should include a calculation of the force using the equation $F = qE$ and a statement of the direction of the force in relation to the electric field and the charge.
Question 8Generation and transmission of electricity2 marks
A step-up transformer has a turns ratio of 1:4. If the input voltage is $20 V$ what is the output voltage?
What a full answer covers
Your answer should include the calculation of the output voltage using the turns ratio.
Question 9Special relativity3 marks
A spaceship travels past an observer on Earth at a speed of $0.8c$. If the spaceship has a clock that measures 1 hour, what time will be measured by the observer on Earth?
What a full answer covers
Your answer should include the calculation of the time measured by the observer using the time dilation equation and an explanation of the concept.
Question 10Light and matter9 marks
Describe the main features of blackbody radiation and explain how the Planck hypothesis led to a resolution of the ultraviolet catastrophe.
What a full answer covers
Your answer should include a description of the features of blackbody radiation, an explanation of the ultraviolet catastrophe, and a discussion of how Planck's hypothesis provided a resolution.

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Physics VCE practice questions

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