the time required for the number of nuclei in a radioactive sample to fall to half the original value
half-life
1 of 9
the change in internal energy of a system is the sum of the work done on the system and the energy transferred thermally into it
first law of thermodynamics
2 of 9
Physical behaviour cannot depend on 'absolute velocity' - physical laws must take the same form for all observers, no matter what their state of uniform motion in a straight line
Einstein's first postulate
3 of 9
components joined end-to-end which share the p.d. and have the same current
in series
4 of 9
removal of an electron from, or addition of an electron to, an uncharged atom or molecule to * it
ionisation
5 of 9
a measure of magnetic field strength
magnetic flux density
6 of 9
the fusion of two light (low nucleon number) nuclei to form a heavier nucleus
nuclear fusion
7 of 9
an object thrown or fired so that its subsequent motion is affected by a gravitational field
projectile
8 of 9
for particles, the deflection of accelerated particles due to interaction with nuclei or with other particles
scattering
9 of 9
Other cards in this set
Card 2
Front
the change in internal energy of a system is the sum of the work done on the system and the energy transferred thermally into it
Back
first law of thermodynamics
Card 3
Front
Physical behaviour cannot depend on 'absolute velocity' - physical laws must take the same form for all observers, no matter what their state of uniform motion in a straight line
Back
Card 4
Front
components joined end-to-end which share the p.d. and have the same current
Back
Card 5
Front
removal of an electron from, or addition of an electron to, an uncharged atom or molecule to * it
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