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Flashcards in equations Deck (18)
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1

Equation for internal energy.

Internal energy increases / (kinetic & potential)

2

Equation for density

density = mass / volume

3

what is heat?

amount of energy (in heat form)

4

what is capacity?

the amount of something that can be contained

5

what is specific heat capacity?

amount of energy needed to raise the tempreture of each kg by 1 C

6

equation for specific heat capacity

specific heat capacity = energy / mass X tempreture change

7

what is fusion?

energy required o melt a liquid

8

what is vaporization

energy required to turn a liquid into a gas

9

equation for energy

energy = mass X specific heat latent

10

what does pressure mean?

pressure = force in a specific / particular area

11

alpha particles meaning

made of 2 protons and 2 nuetrons, same as helium nucleus

12

beta particles meaning

a fast, high energy electron

13

gama ray meaning

an electroneic wave with lots of energy and high frequency.

14

isotope meaning

an atom with the same number of protons but a different number of nuetrons

15

atomic number meaning

how many protons there are - bottom number

16

mass number meaning

total protons + nuetrons - top number

17

what happens in a beta decay

the mass number stays the same but the atomic number increases by 1

18

what happens in an alpha decay

the mass numbefr decreases and the attomic number decreases by 2