physics - the particle model Flashcards
1
Q
what are the arrangements of particles in a solid?
A
close together, fixed position
2
Q
what are the arrangements of particles in a liquid?
A
close together, random positions
3
Q
what are the arrangements of particles in a gas?
A
far apart
4
Q
how do you calculate density?
A
mass/volume
5
Q
do materials expand/contract when they heat up and expand/contract when they cool down?
A
expand when they heat up
contract when they cool
6
Q
how do you calculate pressure?
A
force/area
7
Q
when something floats it means that….
A
….the upthrust is balanced with the weight of the object
