Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
|
what is the particle model of a solid |
•regular fixed positions •strong bings •vibrating |
|
|
what is the particle model of a liquid |
•free to move •vibrating and moving around •still close packed •weaker bonds |
|
|
what is the particle model of a gas |
•moves randomly •spreads out to fill a room •not vibrating •no bonds •colliding with each other and container |
|
|
what is the particle model of plasma |
•huge temperature •free electrons and nuclei |
|
|
what is the formula to find the density of a material? |
D=m/v |
|
|
how do you measure density |
•weigh to get the mass on a BALANCE •measure all the sides and multiply to get volume •divide mass by the volume and give answer in g/cm3 of kg/m3 |
|
|
how do u get from a) g to kg b) cm3 to m3 |
a) x 1000 b) x 1 mil |
|
|
how do you find the density of an irregular solid |
fill a eureka can to the top and hang the object in it. get the mass of the water and the volume by looking at the measurements |
|
|
what is the pressure equation |
pressure= force/area pressure=N/m2 force=N area=m2 |
|
|
how do u get from kg to N |
x10 |
|
|
how do you calculate the pressure at the bottom of a column of fluid |
pressure=hdg height=m2 density=kg/m3 gravity=10 |
|
|
if there is a big area is the overall pressure high or low |
low as it more spread out |
|
|
if there is an increase of temperature what happens to gas pressure |
it increases as their velocity increases and when they collide they hit with more force |
|
|
what is archimedes principle |
that if upthrust is less than weight, the object will sink. if the upthrust is equal to weight then it will float. |
|
|
why would something float? |
the weight of the water displaced equals the upthrust |
|
|
why would something float? |
the weight of the water displaced equals the upthrust |
|
|
if a liquid is less dense, what would happen |
the object would sink more as more water needs to be displaced in order for the weight to be equal |
|
|
name a gas that is less dense than air |
hydrogen |
