physics p2 Flashcards
1
Q
specific latent heat of fusion
A
energy for 1kg of material from solid to liquid
without change in temp
2
Q
electric field strength
A
force per unit charge
on small POSITIVE charge
3
Q
how to find the poles of a coil
A
DO NOT MIX WITH RH RULE
but with rh follow conv current around the coil, thumb points to north
4
Q
what radiation is used to sterilise
A
gamma as it is pentrating, will penetrate all sides
5
Q
inverse square law for count rate
A
count rate = k/d^2
6
Q
why is radiated items not dangerous
A
ionising radiation doesnt affect nucleus
therefore radioactivity isnt induced
