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March 29, 2024, 10:46:23 pm

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sweetiepi

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Physics difficult questions list!
« on: October 31, 2016, 10:15:36 am »
+7
So, I'm back again with yet another list! ;D
This time I have included the exams from 2008-2015. :)

2015

Motion in One and Two Dimensions
Question 1a (42% got 2 marks) Calculate the speed question
Question 1c (33% got 3 marks) Impulse question
Question 3b (47% got 2 marks) Draw the resultant force/circular motion question
Question 5b (41% got 3 marks) Projectile motion question/calculate the vertical drop
Question 6c (36% got 3 marks) Calculate the speed of the mass/oscillating springs question
Question 7c (41% got 3 marks) Weightlessness question

Electronics and photonics
Question 9a (45% git 2 marks) Which transducer is appropriate at a point question
Question 11b (10% got 3 marks) Explain why the output graph is inverted and clipped
Question 11c (47% got 3 marks) Plot the voltage characteristics

Electric Power
Question 12c (33% got 3 marks) Calculate the voltage/faraday’s law
Question 12d (16% got 3 marks) What changes from DC to AC are needed question
Question 13a (11% got 2 marks) Sketch the magnetic flux
Question 13b (34% got 2 marks) Sketch the EMF
Question 13c (15% got 4 marks) Determine the direction of current and explain how it is determined
Question 14b (36% got 2 marks) Determine RMS voltage
Question 15 (45% got 2 marks) Draw a magnetic field around a solenoid
Question 16b (44% got 2 marks) Calculate the voltage output from power supply
Question 16f (16% got 4 marks) Describe a real situation that this model could represent

Interactions of Light and Matter
Question 17a (38% got 3 marks) Recognising if a point is a bright or dark band
Question 20b (23% got 2 marks) How do electrons behave like waves question
Question 21a (23% got 3 marks) Standing waves/quantised energy state question
Question 21b (40% got 2 marks) Illustrate 11a with a diagram

Detailed Studies
I won’t go into detail here, as there’s six studies and obviously I only studied one. :P (It still has the %!)
Einstein’s Special Relativity
Question 2 (32%)
Question 10 (43%)

Materials and their use in structures
None for this year

Further Electronics
Question 1 (36%)
Question 6 (40%)
Question 11 (38%)

Synchrotron and its applications
Question 9 (48%)

Photonics
Question 1 (46%)
Question 2 (42%)
Question 4 (38%)
Question 6 (35%)
Question 9 (44%)
Question 10 (42%)
Question 11 (42%)

Sound
None for this year

2014

Motion in one and two dimensions
Question 1b (49% got 2 marks) Calculate the tension
Question 2b (27% got 3 marks) Find the extension in the spring at the lowest point of its oscillation
Question 2c (27% got 2 marks) GPE/SPE question
Question 2d (7% got 4 marks) Calculate max speed/spring question
Question 3b (46% got 3 marks) Projection motion/Find the height the object strike the board
Question 4b (11% got 3 marks) Explain why the people feel weightless
Question 4c (44% got 3 marks) Draw and label all the forces/circular motion
Question 5a (43% got 4 marks) Calculate the mass of the central object
Question 5b (16% got 2 marks) An is it possible to determine the mass of the planet question

Electronics and photonics
Question 9 (25% got 2 marks) Sketch the modulated wave question

Electric Power
Question 13a (33% got 1 mark) What causes a current to flow in a loop question
Question 13c (21% got 3 marks) Indicate and explain the direction of the induced current
Question 14a (30% got 1 mark) State the value of the voltage in the second coil
Question 15d (40% got 3 marks) Calculate the highest DC voltage
Question 16 (8% got 4 marks) Explain how transformers reduce transmission losses
Question 17c (36% got 2 marks) Explain how the rotation occurs
Question 18a (8% got 3 marks) Explain why it is AC instead of DC
Question 18c (44% got 2 marks) State if there is an increase/decrease/no change to the magnitude of the voltage output in the generator

Interactions of Light and Matter
Question 19b (46% got 2 marks) Calculate the wavelength
Question 20b (7% got 3 marks) Explain how the result provides evidence of the particle-like nature of light
Question 21c (29% got 2 marks) Give reasoning as to why the corresponding rings are larger than/the same size as/smaller than the original pattern.
Question 21d (10% got 3 marks) Explain why the diffraction pattern is different
Question 22a (32% got 2 marks) Explain how an atom can absorb x energy but cannot emit a photon of this energy
Question 22b (36% got 3 marks) Calculate the energy
Question 23a (45% got 2 marks) Calculate the de Broglie wavelength
Question 23b (21% got 3 marks) Quantised energy levels/standing waves question

Detailed Studies
Einstein’s special relativity
Question 3 (40%)
Question 4 (25%)
Question 6 (37%)
Question 7 (40%)
Question 9 (28%)
Question 11 (39%)

Materials and their use in structures
Question 8 (39%)
Question 9 (46%)

Further electronics
Question 9 (35%)
Question 10 (48%)
Question 11 (29%)

Synchrotron and its applications
Question 5 (48%)

Photonics
Question 2 (43%)
Question 3 (31%)
Question 5 (41%)
Question 7 (32%)
Question 8 (14%)
Question 10 (33%)
Question 11 (48%)

Sound
Question 8 (30%)

2013

Motion in one and two dimensions
Question 1b (32% got 3 marks) Calculate the frictional force of the plane
Question 2b (24% got 3 marks) Calculate the tension in the spring
Question 3c (41% got 2 marks) Calculate the magnitude and direction of the impulse exerted
Question 4a (42% got 2 marks) Show the forces on the train and Fnet/circular/banked motion
Question 5b (40% got 3 marks) Which direction is the net force at a point/circular motion
Question 6c (7% got 3 marks) Explain the mistake in the calculations
Question 7a (41% got 1 mark) Calculate the period of the orbit
Question 7b (32% got 2 marks) Calculate the radius of the orbit
Question 7c (19% got 3 marks) Explain terms weight, weightlessness and apparent weightlessness
Question 8a (42% got 3 marks) Calculate the time taken to hit the bottom/projectile motion
Question 8b (27% got 3 marks) Calculate the magnitude and direction of velocity before it reaches the sea

Electronics and photonics
Question 11d (45% got 4 marks) Describe the changes in the LDR by changing the temp and changing the light intensity
Question 12b (35% got 2 marks) Compare the types of energy transfers occurring in the LED to the transfers in the resistor
Question 13a (47% got 2 marks) Calculate the gain
Question 13b (36% got 2 marks) Explain why it is an inverting amplifier

Electric Power
Question 14 (46% got 2 marks) Draw field lines for the two solenoids
Question 15d (16% got 3 marks) Explain why a short pulse of current creates flux
Question 16c (40% got 2 marks) Slip rings vs Split-ring
Question 17a (49% got 3 marks) Calculate the average current
Question 17b (41% got 2 marks) Find the times when the EMF is zero
Question 17c (13% got 4 marks) Describe the current
Question 17d (21% got 2 marks) Show the times of the positioning of the ring
Question 18d (47% got 3 marks) Calculate the output voltage

Interactions of light and matter
Question 20a (34% got 2 marks) Calculate the longest wavelength of light emitted
Question 20b (34% got 3 marks) Explain with a calculation why the emission spectra shows a spectral line at 588.63nm
Question 21a (42% got 1 mark) Calculate the max kinetic energy
Question 21b (31% got 2 marks) Calculate the work energy
Question 21d (10% got 2 marks) Explain the changes in the value of the photocurrent
Question 22a (28% got 2 marks) Describe the intensity at the centre of the interference pattern
Question 22c (25% got 3 marks) Calculate the path difference from the slits to the first dark band
Question 22d (41% got 3 marks) Explain which theory Young’s DS exp relates to
Question 23a (31% got 2 marks) Calculate the magnitude of momentum of an X-Ray photon
Question 23b (26% got 3 marks) Compare the students in ideas of fringe spacing and energies/momentum

Detailed Studies
Einstein’s special relativity
Question 2 (37%)
Question 3 (46%)
Question 6 (38%)
Question 8 (24%)
Question 11 (37%)

Materials and their use in structures
Question 5 (48%)
Question 7 (32%)
Question 8 (42%)

Further electronics
Question 3 (47%)
Question 6 (48%)
Question 8 (31%)
Question 10 (31%)

Synchrotron and its applications
Question 8 (20%)

Photonics
Question 7 (42%)
Question 9 (33%)
Question 10 (38%)
Question 11 (43%)

Sound
Question 6 (49%)
Question 7 (31%)

2012 Exam 1

Motion in one and two directions
Question 1c (49% got 2 marks) Find the spring constant
Question 2 (17% got 3 marks) Momentum conservation question
Question 4b (12% got 2 marks) Newton’s third law question/action-reaction pairs
Question 5d (36% got 3 marks) Calculate the acceleration and which rope breaks
Question 7c (17% got 3 marks) Circular motion/tension
Question 8a (45% got 4 marks) Calculate the height above the moon
Question 8b (45% got 2 marks) Explain weightlessness and apparent weightlessness

Electronics and photonics
Question 2c (33% got 2 marks) calculate the current
Question 2d (33% got 4 marks) Calculate the voltage input for each diode
Question 3b (33% got 4 marks) Draw a circuit diagram
Question 5 (32% got 3 marks) Outline the functions of the modulation device, light beam and demodulation device

Detailed Studies
Einstein’s special relativity
Question 1 (25%)
Question 8 (46%)
Question 10 (49%)

Materials and their use in structures
None for this year

Further electronics
Question 4 (41%)
Question 12 (40%)


2012 Exam 2

Electric power
Question 1a (42% got 1 mark) Indicate the direction of the magnetic field
Question 1b (47% got 2 marks) Which orientation will the magnet take?
Question 4c (39% got 3 marks) Determine if the pump will work/AC motor question
Question 4d (3% got 4 marks) How to reduce the power losses
Question 6b (25% got 2 marks) Explain why there is in voltage produced in the secondary coil/flux question
Question 7a (25% got 2 marks) Describe the changing flux
Question 7b (44% got 3 marks) Find the number turns in the coil
Question 7c (48% got 2 marks) Describe the shape of the output
Question 8c (13% got 3 marks) Describe the direction of current

Interactions of light and matter
Question 1b (10% got 3 marks) Explain the particle model of light
Question 1d (41% got 1 mark) Calculate the stopping voltage
Question 2a (35% got 2 marks) Calculate the number of photons leaving the laser
Question 2b (40% got 2 marks) Explain why central band is a bright band and not dark
Question 2d (35% got 2 marks) Calculate the wavelength
Question 3a (47% got 2 marks) Calculate the kinetic energy of the electron
Question 3b (31% got 3 marks) Calculate the energy in an x-ray photon
Question 4b (27% got 3 marks) Why are certain energy levels stable?

Detailed Studies
Synchrotron and its applications
Question 8 (44%)
Question 10 (48%)

Photonics
None for this year

Sound
None for this year

2011 Exam 1

Motion in one and two dimensions
Question 5 (33% got 2 marks) Explain how the forces cause net force
Question 7 (43% got 2 marks) Newton’s 3rd law question/action-reaction pair
Question 8 (37% got 2 marks) What is the for by one on the other
Question 10 (33% got 2 marks) Apparent weight question
Question 16 (48% got 2 marks) What is the spring constant question
Question 17 (42% got 1 mark) Which graph shows the kinetic energy of the string
Question 19 (46% got 1 mark) Which graph shows the GPE
Question 20 (8% got 3 marks) Which graph shows the SPE
Question 22 (41% got 2 marks) What is the mass of the planet?
Question 23 (40% got 2 marks) What is the period of orbit

Electronics and photonics
Question 2 (36% got 2 marks) Find the current through a resistor
Question 4 (28% got 2 marks) Power dissipated in a resistor
Question 6 (29% got 3 marks) Draw a circuit
Question 9 (24% got 2 marks) Draw the variation of brightness
Question 10 (14% got 2 marks) Explain how it is an example of modulation
Question 12 (18% got 2 marks) What is the effect of clipping?

Detailed Studies
Einstein’s Special relativity
Question 1 (39%)
Question 3 (47%)
Question 9 (42%)
Question 10 (41%)
Question 11 (43%)

Materials and their use in structures
Question 5 (37%)
Question 10 (36%)

Further electronics
Question 2 (11%)
Question 3 (45%)
Question 4 (40%)
Question 9 (2 options were accepted) (12% for one and 35% for the other)
Question 12 (36%)

2011 Exam 2

Electric Power
Question 1 (44% got 1 mark) Which direction is the combined magnetic field
Question 2 (37% got 2 marks) Which direction is the combined magnetic field
Question 7 (15% got 2 marks) Explain the shape of the voltage-time display
Question 11 (27% got 2 marks) Sketch an EMF graph
Question 12 (16% got 3 marks) Lenz’s law question
Question 14 (30% got 3 marks) Explain the increase in power losses
Question 17 (15% got 2 marks) Which graph shows the electromagnetic force/show with a calculation

Interactions of light and matter
Question 4 (43% got 3 marks) Explain Young’s DS experiment and its relation to the wave properties of light
Question 5 (5% got 2 marks) Explain why the current drops to zero
Question 7 (49% got 2 marks) Calculate Planck’s constant
Question 8 (38% got 2 marks) What is the longest wavelength according to the graph that would be emitted
Question 9 (23% got 3 marks) What conclusions did Einstein have about the PE experiment
Question 11 (18% got 2 marks) Find the energy of the x-ray photon
Question 13 (38% got 3 marks) List all the possible energies of photons that can be emitted

Detailed Studies
Synchrotron and its applications
Question 4 (40%)
Question 6 (35%)

Photonics
Question 6 (44%)

Sound
Question 9 (40%)

2010 Exam 1

Motion in one and two dimensions
Question 3 (10% got 2 marks) What is the acceleration of the block
Question 5 (43% got 2 marks) Draw the two forces acting on the rider
Question 6 (48% got 3 marks) What angle of the bank is needed to not have friction?
Question 11 (44% got 2 marks) What is the speed that the package hits the ground/projectile motion
Question 14 (13% got 2 marks) What is the magnitude and total energy of the system?
Question 15 (36% got 2 marks) Which graph shows KE and why?
Question 17 (35% got 2 marks) Which graph represents an inelastic collision?
Question 19 (45% got 2 marks) What is the period of orbit

Electronics and photonics
Question 2 (34% got 2 marks) What current flows through the ammeter?
Question 3 (43% got 2 marks) What voltage is there across the globes
Question 7 (38% got 3 marks) Does the value of Vout decrease or increase as it approaches 4V?
Question 8 (23% got 3 marks) Increase/decrease resistor question
Question 9 (47% got 2 marks) What is the voltage gain

Detailed Studies
Einstein’s special relativity
Question 5 (16%)
Question 8 (31%)
Question 11 (34%)

Materials and their use in structures
Question 8 (45%)

Further electronics
Question 8 (49%)
Question 10 (49%)
Question 11 (42%)

2010 Exam 2

Electric power
Question 1 (44% got 2 marks) Draw 3 field lines
Question 2 (39% got 2 marks) What is the flux?
Question 7 (31% got 3 marks) Explain the difference between the split and slip rings
Question 8 (285 got 2 marks) Sketch a graph of voltage against time
Question 9 (44% got a mark) Identify the law used to sketch that graph
Question 11 (31% got 2 marks) Which direction will the current flow in the diagram
Question 14 (49% got 2 marks) Explain why the globe doesn’t glow brightly
Question 15 (40% got 3 marks) Calculate the required voltage
Question 16 (46% got 2 marks) What is the power loss
Question 17 (25% got 2 marks) Explain why AC is used for long-distance power transmission
Question 20 (34% got 3 marks) What is the power loss in the lines?

Interactions of light and matter
Question 1 (39% got 3 marks) Name an experiment and explain how it relates to the wave-like properties instead of particle-like properties of light
Question 2 (10% got 3 marks) Which observation doesn’t support the wave model
Question 8 (36% got 2 marks) Which electron diagram is observed
Question 10 (12% got 3 marks) What is the energy in an x-ray photon

Detailed Studies
Synchrotron and its applications
None for this year

Photonics
Question 3 (41%)
Question 4 (37%)
Question 7 (42%)
Question 8 (37%)
Question 10 (39%)

Sound
None for this year

2009 Exam 1

Motion in one and two dimensions
Question 5 (48% got 2 marks) What is the spring constant
Question 8 (43% got 3 marks) Apparent weight question
Question 9 (26% got 4 marks) Define apparent weightlessness
Question 11 (42% got 3 marks) What is the height/projectile motion
Question 13 (26% got 2 marks) Where are the forces on the diagram

Electronics and photonics
Question 4 (41% got 3 marks) What is the current
Question 8 (40% got 2 marks) Waveform/modulation
Question 11 (44% got 3 marks) Increase/decrease resistor question

Detailed Studies
Einstein’s relativity
None for this year

Investigating materials and their use in structures
Question 10 (44%)

Further electronics
Question 5 (45%)
Question 13 (46%)

2009 Exam 2

Electric power
Question 4 (42% got 2 marks) Draw 4 field lines
Question 14 (47% got 2 marks) What is the power loss in the lines
Question 15 (35% got 3 marks) What is the voltage at the output of the step down transformer
Question 16 (47% got 2 marks) Draw the output

Interactions of light and matter
Question 1 (39% got 3 marks) Explain Young’s DS experiment’s link to a model of light
Question 2 (38% got 3 marks) Explain the PE experiment
Question 3 (40% got 3 marks) Is the central band bright or dark?
Question 4 (48% got 2 marks) Determine the wavelength/path difference
Question 5 (21% got 3 marks) Define KE, frequency and Work Function
Question 6 (48% got 3 marks) Determine Planck’s constant
Question 12 (20% got 2 marks) Standing wave question

Detailed Studies
Synchrotron and its applications
Question 4 (46%)
Question 10 (49%)
Question 11 (48%)

Photonics
None for this year

Sound
Question 11 (45%)

2008 Exam 1

Motion in one and two dimensions
Question 1 (37% got 2 marks) What is the acceleration of the object?
Question 3 (40% got 3 marks) Circular motion/tension question
Question 9 (46% got 3 marks) What is the impulse on the train by the trucks?
Question 11 (47% got 2 marks) Will the force exerted by the train be greater/lesser/equal to the force exerted by the trucks?
Question 12 (40% got 2 marks) How much energy is stored in the spring when the ball is stationary/oscillating springs question
Question 13 (38% got 2 marks) Which graph represents KE?
Question 15 (28% got 2 marks) Describe the speed and total energy of the comet/orbit question
Question 17 (45% got 3 marks) Calculate the period of the surveyor

Electronics and photonics
Question 6 (8% got 3 marks) Explain the shape of the vin vout
Question 8 (27% got 3 marks) Explain why the capacitor is needed (No longer in SD)
Question 11 (19% got 3 marks) A “should R be increased or decreased” question

Detailed Studies
Einstein’s relativity
None for this year

Investigating materials and their use in structures
Question 12 (47%)

Further electronics
None for this year

2008 Exam 2

Electric Power
Question 1 (46% got 2 marks) Draw 5 field lines
Question 9 (45% got 3 marks) Find the average EMF induced
Question 10 (13% got 4 marks) Which direction does the current run? Explain
Question 12 (31% got 3 marks) What is the voltage across the light?
Question 13 (31% got 3 marks) What is the current through the wire?

Interactions of light and matter
Question 1 (22% got 2 marks) Explain electron behaviour in a light globe (I haven’t seen a question like this since here, so safe to assume it’s out of the SD)
Question 2 (41% got 2 marks) Describe how the spectrum of the light from a globe differs from a mercury vapour lamp (again I haven’t seen a question like this since this exam- assumed out of SD)
Question 3 (48% got 2 marks) What is the path difference?
Question 4 (20% got 2 marks) Explain why there is a maximum at a point
Question 6 (36% got 3 marks) Draw a frequency/voltage graph
Question 7 (28% got 3 marks) Determine the Planck’s constant
Question 8 (42% got 2 marks) What is the work function?
Question 12 (37% got 2 marks) What is the shortest wavelength photon that can be emitted at an energy level?

Detailed Studies
Synchrotron and its applications
Question 5 (43%)

Photonics
Question 8 (26%)
Question 11 (43%)

Sound
Question 13 (40%)
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