AQA A Level Physics 7408/1/2 & 3A Papers 1,2 & 3A
June 2024 Question Papers and Mark Schemes STUDY
BUNDLE PACKAGE WITH SOLUTIONS
Progressive waves transfer ______, not ______ - ANSWEREnergy, matter
Waves are produced by... - ANSWERparticles or fields oscillating at the source
Evidence showing that waves carry energy: - ANSWERHeating, physical vibration, loss
of energy from the source, electricity generation, ionisation
2 main types of wave - ANSWERTransverse and Longitudinal
Longitudinal waves - the direction of particle/field oscillations is ________ to the
direction of energy propagation. - ANSWERParallel
Longitudinal waves contain ____________ and ____________ -
ANSWERcompressions, rarefactions
Transverse waves - the direction of particle/field oscillations is _____________ to
the direction of energy propagation. - ANSWERPerpendicular
Wavelength - ANSWERthe distance between adjacent crests of a wave
Displacement - ANSWERDistance and direction from equilibrium (rest) position
Amplitude - ANSWERMaximum displacement from equilibrium postion
Cycle - ANSWEROne whole vibration of the wave
Time period - ANSWERTime for one whole cycle to pass a given point.
(In terms of time and displacement) V = - ANSWERs/t
T = - ANSWER1/f
(In terms of waves) V = - ANSWERf x λ
c = - ANSWERf x λ
For 1 wave cycle, V = - ANSWERλ/T
Examples of longitudinal waves - ANSWERSound waves, P waves
Examples of transverse waves - ANSWERS waves, EM waves, water
, Examples of both transverse and longitudinal waves - ANSWERMechanical waves, L
waves
Sound wave properties - ANSWERLongitudinal, produced by the vibration of particles
in a medium
What waves do polaroid sunglasses involve? - ANSWEREM waves
EM wave properties - ANSWERtransverse, have oscillating electric and magnetic
fields at right-angles to eachother and the direction of propagation
A wave is unpolarised when... - ANSWERtransverse oscillate in more than 1 plane
Can transverse waves be polarised? - ANSWERYes
How can transverse waves be polarised? - ANSWERby using a polarising filter, which
only lets oscillations in one plane through
Can longitudinal waves be polarised? - ANSWERno
Why can't longitudinal waves be polarised? - ANSWEROnly have 1 plane of
oscillations (they oscillate in the same direction as they travel)
How are TV signals polarised? - ANSWERBy the orientation of the rods on the
transmitting aerial (which have to be aligned)
continuous wave - ANSWERan infinite wave
pulse - ANSWERhas no repeated up and down motion
wave train - ANSWERhas a start and end
wave front - ANSWERleading edge of a moving wave (red)
rays - ANSWERlines drawn through the wavefronts at 90 degrees (blue)
phase difference - ANSWERthe fraction of a cycle between 2 waves, measured in
radians or degrees
path difference - ANSWERthe fraction of a cycle betwwen 2 waves, measured in
wavelenghts
90 degrees phase difference in radians - ANSWER0.5π
180 degrees phase difference in radians - ANSWERπ
superposition - ANSWERwhen waves meet, pass through eachother and combine
June 2024 Question Papers and Mark Schemes STUDY
BUNDLE PACKAGE WITH SOLUTIONS
Progressive waves transfer ______, not ______ - ANSWEREnergy, matter
Waves are produced by... - ANSWERparticles or fields oscillating at the source
Evidence showing that waves carry energy: - ANSWERHeating, physical vibration, loss
of energy from the source, electricity generation, ionisation
2 main types of wave - ANSWERTransverse and Longitudinal
Longitudinal waves - the direction of particle/field oscillations is ________ to the
direction of energy propagation. - ANSWERParallel
Longitudinal waves contain ____________ and ____________ -
ANSWERcompressions, rarefactions
Transverse waves - the direction of particle/field oscillations is _____________ to
the direction of energy propagation. - ANSWERPerpendicular
Wavelength - ANSWERthe distance between adjacent crests of a wave
Displacement - ANSWERDistance and direction from equilibrium (rest) position
Amplitude - ANSWERMaximum displacement from equilibrium postion
Cycle - ANSWEROne whole vibration of the wave
Time period - ANSWERTime for one whole cycle to pass a given point.
(In terms of time and displacement) V = - ANSWERs/t
T = - ANSWER1/f
(In terms of waves) V = - ANSWERf x λ
c = - ANSWERf x λ
For 1 wave cycle, V = - ANSWERλ/T
Examples of longitudinal waves - ANSWERSound waves, P waves
Examples of transverse waves - ANSWERS waves, EM waves, water
, Examples of both transverse and longitudinal waves - ANSWERMechanical waves, L
waves
Sound wave properties - ANSWERLongitudinal, produced by the vibration of particles
in a medium
What waves do polaroid sunglasses involve? - ANSWEREM waves
EM wave properties - ANSWERtransverse, have oscillating electric and magnetic
fields at right-angles to eachother and the direction of propagation
A wave is unpolarised when... - ANSWERtransverse oscillate in more than 1 plane
Can transverse waves be polarised? - ANSWERYes
How can transverse waves be polarised? - ANSWERby using a polarising filter, which
only lets oscillations in one plane through
Can longitudinal waves be polarised? - ANSWERno
Why can't longitudinal waves be polarised? - ANSWEROnly have 1 plane of
oscillations (they oscillate in the same direction as they travel)
How are TV signals polarised? - ANSWERBy the orientation of the rods on the
transmitting aerial (which have to be aligned)
continuous wave - ANSWERan infinite wave
pulse - ANSWERhas no repeated up and down motion
wave train - ANSWERhas a start and end
wave front - ANSWERleading edge of a moving wave (red)
rays - ANSWERlines drawn through the wavefronts at 90 degrees (blue)
phase difference - ANSWERthe fraction of a cycle between 2 waves, measured in
radians or degrees
path difference - ANSWERthe fraction of a cycle betwwen 2 waves, measured in
wavelenghts
90 degrees phase difference in radians - ANSWER0.5π
180 degrees phase difference in radians - ANSWERπ
superposition - ANSWERwhen waves meet, pass through eachother and combine
