equations Flashcards
(18 cards)
Equation for internal energy.
Internal energy increases / (kinetic & potential)
Equation for density
density = mass / volume
what is heat?
amount of energy (in heat form)
what is capacity?
the amount of something that can be contained
what is specific heat capacity?
amount of energy needed to raise the tempreture of each kg by 1 C
equation for specific heat capacity
specific heat capacity = energy / mass X tempreture change
what is fusion?
energy required o melt a liquid
what is vaporization
energy required to turn a liquid into a gas
equation for energy
energy = mass X specific heat latent
what does pressure mean?
pressure = force in a specific / particular area
alpha particles meaning
made of 2 protons and 2 nuetrons, same as helium nucleus
beta particles meaning
a fast, high energy electron
gama ray meaning
an electroneic wave with lots of energy and high frequency.
isotope meaning
an atom with the same number of protons but a different number of nuetrons
atomic number meaning
how many protons there are - bottom number
mass number meaning
total protons + nuetrons - top number
what happens in a beta decay
the mass number stays the same but the atomic number increases by 1
what happens in an alpha decay
the mass numbefr decreases and the attomic number decreases by 2
