A Level Physics
Exam
Comprehensive Review
Hypothesis - Answer>> A testable prediction, often implied by a
theory
Theory - Answer>> A hypothesis that has been tested with a
significant amount of data
Test - Answer>> A way to gather a set of results
Absolute Refractive Index - Answer>> the ratio of the speed of
light in a vacuum compared with the speed of light in a medium
Absolute Uncertainty - Answer>> The uncertainty in a
measurement expressed in the unit you are measuring in
Absorption (fibre optics) - Answer>> Where some of the energy
of a fibre-optic is absorbed by the material of the fibre optic
Acceleration - Answer>> The rate at which velocity changes
Accurate Result - Answer>> A result that is very close to the
true answer
Alpha Decay - Answer>> Decay where an unstable atom
releases an alpha particle
,Alpha Particle - Answer>> particle emitted by a radioactive
source that contains two protons and two neutrons
Ammeter - Answer>> A device used to measure current in a
circuit
Amplitude - Answer>> For a wave or vibration, the maximum
displacement on either side of the equilibrium (midpoint) position.
Angle of Incidence - Answer>> The angle between the incident
ray and the normal
Angle of Refraction - Answer>> The angle between the
refracted ray and the normal
Annihilation - Answer>> When a particle meets its antiparticle
and their mass gets turned into energy in the form of gamma ray
photons
Anomalous Result - Answer>> an extremely high or low result
that does not match the other results in a set of scores
Antinode - Answer>> A point of maximum amplitude on a
stationary wave
Average Velocity - Answer>> The change in velocity divided by
the time taken
Baryon - Answer>> Hadron made up of 3 quarks
Baryon Number - Answer>> The number of baryons in a
particle
, Beta- Decay - Answer>> Unstable nuclei emit an electron (B-
particle) and an antineutrino
Beta+ Decay - Answer>> Unstable nuclei emit a positron (B+
particle) and a neutrino
Breaking Stress - Answer>> The lowest stress needed to break
a solid material
Brittle - Answer>> Does not disfigure plastically but snaps after
a certain point
Brittle Fracture - Answer>> When a stress applied to brittle
material causes tiny cracks in the surface to get bigger until it
breaks completely
Calibration - Answer>> Marking a scale on measuring
instrument or checking scale by measuring known value
Categoric Data - Answer>> Data that can be sorted into
categories
Centre of Mass - Answer>> The point you can consider all of
the weight to act through
Cloud Chamber - Answer>> Chamber of vapour which can be
used to track the motion of charged particles
Coherent (waves) - Answer>> Sources that have the same
frequency and wavelength and a fixed phase difference
Exam
Comprehensive Review
Hypothesis - Answer>> A testable prediction, often implied by a
theory
Theory - Answer>> A hypothesis that has been tested with a
significant amount of data
Test - Answer>> A way to gather a set of results
Absolute Refractive Index - Answer>> the ratio of the speed of
light in a vacuum compared with the speed of light in a medium
Absolute Uncertainty - Answer>> The uncertainty in a
measurement expressed in the unit you are measuring in
Absorption (fibre optics) - Answer>> Where some of the energy
of a fibre-optic is absorbed by the material of the fibre optic
Acceleration - Answer>> The rate at which velocity changes
Accurate Result - Answer>> A result that is very close to the
true answer
Alpha Decay - Answer>> Decay where an unstable atom
releases an alpha particle
,Alpha Particle - Answer>> particle emitted by a radioactive
source that contains two protons and two neutrons
Ammeter - Answer>> A device used to measure current in a
circuit
Amplitude - Answer>> For a wave or vibration, the maximum
displacement on either side of the equilibrium (midpoint) position.
Angle of Incidence - Answer>> The angle between the incident
ray and the normal
Angle of Refraction - Answer>> The angle between the
refracted ray and the normal
Annihilation - Answer>> When a particle meets its antiparticle
and their mass gets turned into energy in the form of gamma ray
photons
Anomalous Result - Answer>> an extremely high or low result
that does not match the other results in a set of scores
Antinode - Answer>> A point of maximum amplitude on a
stationary wave
Average Velocity - Answer>> The change in velocity divided by
the time taken
Baryon - Answer>> Hadron made up of 3 quarks
Baryon Number - Answer>> The number of baryons in a
particle
, Beta- Decay - Answer>> Unstable nuclei emit an electron (B-
particle) and an antineutrino
Beta+ Decay - Answer>> Unstable nuclei emit a positron (B+
particle) and a neutrino
Breaking Stress - Answer>> The lowest stress needed to break
a solid material
Brittle - Answer>> Does not disfigure plastically but snaps after
a certain point
Brittle Fracture - Answer>> When a stress applied to brittle
material causes tiny cracks in the surface to get bigger until it
breaks completely
Calibration - Answer>> Marking a scale on measuring
instrument or checking scale by measuring known value
Categoric Data - Answer>> Data that can be sorted into
categories
Centre of Mass - Answer>> The point you can consider all of
the weight to act through
Cloud Chamber - Answer>> Chamber of vapour which can be
used to track the motion of charged particles
Coherent (waves) - Answer>> Sources that have the same
frequency and wavelength and a fixed phase difference
