Paper 1 definitions (A-Level Physics) REAL EXAM
Study online at https://quizlet.com/_hm0lrw
Acceleration change of velocity per unit time
acceleration of free fall accelerated object by gravity
Accurate correctly calibrated instruments
Accuracy closeness to real value
Alpha radiation 2 protons and 2 neutrons
maximum displacement of a vibrating
Amplitude
particle from equilibrium
Particle and antiparticle meet, destroy
Annihilation
eachother and emit radiation
Anti-baryon Hardon with 3 antiquarks
Fixed point on stationary wave where
Antinode
amplitude is maximum
Antiparticle for every particle. Equal rest
Antiparticle
mass, opposite charge
Atomic Number, Z Number of protons
Baryon Hadron with 3 quarks
Units that define the SI system (e.g., the
Base units metre, the kilogram, the second, the am-
pere)
Beta (-) particles are fast moving elec-
trons emitted by unstable neutron-rich
nuclei or when free neutrons decay.
Beta radiation
Beta (+) particles are fast moving
positrons emitted by unstable proton-rich
nuclei.
distance travelled in time taken for vehi-
Braking distance
cle to stop
Snaps without stretching or bending
Brittle
when subject to stress
The point through which a single force on
Centre of mass
the body has no turning effect
, Paper 1 definitions (A-Level Physics) REAL EXAM
Study online at https://quizlet.com/_hm0lrw
Charged particles that move through a
Charge carriers substance when a pd is applied across
it.
1. Current passing through 2 or more
components in series is the same
Circuit rule for current (Kirchhoff's first
through each component.
law)
2. At junction, total current in = total cur-
rent out
1. For 2 or more components in series,
total pd across all components is equal
Circuit rule for pd (Kirchhoff's second
to sum of pd's across each component.
law)
2. Sum of emfs around a complete loop
in a circuit= sum of pd's around the loop
2 sources of waves that have a constant
Coherent
phase difference
For particle interactions these must be
conserved:
energy, momentum, charge , baryon
Conservation rules
number, lepton number.
Strangeness is only conserved in strong
interactions.
pair of equal and opposite forces acting
Couple on a body but not acting along the same
line of action
incidence > critcal for TIR
Critical angle
(angle of incidence for a light ray must
exceed critical angle for total internal re-
flection to occur)
Critical temperature of superconducting Temperature at and below where resis-
material tivity is zero
interval for a vibrating particle (or wave)
from a certain displacement and velocity
Cycle
to the next time that it has the same
displacement and velocity
Study online at https://quizlet.com/_hm0lrw
Acceleration change of velocity per unit time
acceleration of free fall accelerated object by gravity
Accurate correctly calibrated instruments
Accuracy closeness to real value
Alpha radiation 2 protons and 2 neutrons
maximum displacement of a vibrating
Amplitude
particle from equilibrium
Particle and antiparticle meet, destroy
Annihilation
eachother and emit radiation
Anti-baryon Hardon with 3 antiquarks
Fixed point on stationary wave where
Antinode
amplitude is maximum
Antiparticle for every particle. Equal rest
Antiparticle
mass, opposite charge
Atomic Number, Z Number of protons
Baryon Hadron with 3 quarks
Units that define the SI system (e.g., the
Base units metre, the kilogram, the second, the am-
pere)
Beta (-) particles are fast moving elec-
trons emitted by unstable neutron-rich
nuclei or when free neutrons decay.
Beta radiation
Beta (+) particles are fast moving
positrons emitted by unstable proton-rich
nuclei.
distance travelled in time taken for vehi-
Braking distance
cle to stop
Snaps without stretching or bending
Brittle
when subject to stress
The point through which a single force on
Centre of mass
the body has no turning effect
, Paper 1 definitions (A-Level Physics) REAL EXAM
Study online at https://quizlet.com/_hm0lrw
Charged particles that move through a
Charge carriers substance when a pd is applied across
it.
1. Current passing through 2 or more
components in series is the same
Circuit rule for current (Kirchhoff's first
through each component.
law)
2. At junction, total current in = total cur-
rent out
1. For 2 or more components in series,
total pd across all components is equal
Circuit rule for pd (Kirchhoff's second
to sum of pd's across each component.
law)
2. Sum of emfs around a complete loop
in a circuit= sum of pd's around the loop
2 sources of waves that have a constant
Coherent
phase difference
For particle interactions these must be
conserved:
energy, momentum, charge , baryon
Conservation rules
number, lepton number.
Strangeness is only conserved in strong
interactions.
pair of equal and opposite forces acting
Couple on a body but not acting along the same
line of action
incidence > critcal for TIR
Critical angle
(angle of incidence for a light ray must
exceed critical angle for total internal re-
flection to occur)
Critical temperature of superconducting Temperature at and below where resis-
material tivity is zero
interval for a vibrating particle (or wave)
from a certain displacement and velocity
Cycle
to the next time that it has the same
displacement and velocity
